## What changes were proposed in this pull request?
https://github.com/apache/spark/pull/22275 introduced a performance improvement where we send partitions out of order to python and then, as a last step, send the partition order as well.
However, if there are no partitions we will never send the partition order and we will get an "EofError" on the python side.
This PR fixes this by also sending the partition order if there are no partitions present.
## How was this patch tested?
New unit test added.
Closes#24650 from dvogelbacher/dv/fixNoPartitionArrowConversion.
Authored-by: David Vogelbacher <dvogelbacher@palantir.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
When turning a Dataset to another Dataset, Spark will up cast the fields in the original Dataset to the type of corresponding fields in the target DataSet.
However, the current upcast behavior is a little weird, we don't allow up casting from string to numeric, but allow non-numeric types as the target, like boolean, date, etc.
As a result, `Seq("str").toDS.as[Int]` fails, but `Seq("str").toDS.as[Boolean]` works and throw NPE during execution.
The motivation of the up cast is to prevent things like runtime NPE, it's more reasonable to make up cast stricter.
This PR does 2 things:
1. rename `Cast.canSafeCast` to `Cast.canUpcast`, and support complex typres
2. remove `Cast.mayTruncate` and replace it with `!Cast.canUpcast`
Note that, the up cast change also affects persistent view resolution. But since we don't support changing column types of an existing table, there is no behavior change here.
## How was this patch tested?
new tests
Closes#21586 from cloud-fan/cast.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
To return accurate pushed filters in Parquet file scan(https://github.com/apache/spark/pull/24327#pullrequestreview-234775673), we can process the original data source filters in the following way:
1. For "And" operators, split the conjunctive predicates and try converting each of them. After that
1.1 if partially predicate pushed down is allowed, return convertible results;
1.2 otherwise, return the whole predicate if convertible, or empty result if not convertible.
2. For "Or" operators, if both children can be pushed down, it is partially or totally convertible; otherwise, return empty result
3. For other operators, they are not able to be partially pushed down.
2.1 if the entire predicate is convertible, return itself
2.2 otherwise, return an empty result.
This PR also contains code refactoring. Currently `ParquetFilters. createFilter ` accepts parameter `schema: MessageType` and create field mapping for every input filter. We can make it a class member and avoid creating the `nameToParquetField` mapping for every input filter.
## How was this patch tested?
Unit test
Closes#24597 from gengliangwang/refactorParquetFilters.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
If we refresh a cached table, the table cache will be first uncached and then recache (lazily). Currently, the logic is embedded in CatalogImpl.refreshTable method.
The current implementation does not preserve the cache name and storage level. As a result, cache name and cache level could be changed after a REFERSH. IMHO, it is not what a user would expect.
I would like to fix this behavior by first save the cache name and storage level for recaching the table.
Two unit tests are added to make sure cache name is unchanged upon table refresh. Before applying this patch, the test created for qualified case would fail.
Closes#24221 from William1104/feature/SPARK-27248.
Lead-authored-by: williamwong <william1104@gmail.com>
Co-authored-by: William Wong <william1104@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Because a temporary view is resolved during analysis when we create a dataset, the content of the view is determined when the dataset is created, not when it is evaluated. Now the explain result of a dataset is not correctly consistent with the collected result of it, because we use pre-analyzed logical plan of the dataset in explain command. The explain command will analyzed the logical plan passed in. So if a view is changed after the dataset was created, the plans shown by explain command aren't the same with the plan of the dataset.
```scala
scala> spark.range(10).createOrReplaceTempView("test")
scala> spark.range(5).createOrReplaceTempView("test2")
scala> spark.sql("select * from test").createOrReplaceTempView("tmp001")
scala> val df = spark.sql("select * from tmp001")
scala> spark.sql("select * from test2").createOrReplaceTempView("tmp001")
scala> df.show
+---+
| id|
+---+
| 0|
| 1|
| 2|
| 3|
| 4|
| 5|
| 6|
| 7|
| 8|
| 9|
+---+
scala> df.explain(true)
```
Before:
```scala
== Parsed Logical Plan ==
'Project [*]
+- 'UnresolvedRelation `tmp001`
== Analyzed Logical Plan ==
id: bigint
Project [id#2L]
+- SubqueryAlias `tmp001`
+- Project [id#2L]
+- SubqueryAlias `test2`
+- Range (0, 5, step=1, splits=Some(12))
== Optimized Logical Plan ==
Range (0, 5, step=1, splits=Some(12))
== Physical Plan ==
*(1) Range (0, 5, step=1, splits=12)
```
After:
```scala
== Parsed Logical Plan ==
'Project [*]
+- 'UnresolvedRelation `tmp001`
== Analyzed Logical Plan ==
id: bigint
Project [id#0L]
+- SubqueryAlias `tmp001`
+- Project [id#0L]
+- SubqueryAlias `test`
+- Range (0, 10, step=1, splits=Some(12))
== Optimized Logical Plan ==
Range (0, 10, step=1, splits=Some(12))
== Physical Plan ==
*(1) Range (0, 10, step=1, splits=12)
```
Previous PR to this issue has a regression when to explain an explain statement, like `sql("explain select 1").explain(true)`. This new fix is following up with hvanhovell's advice at https://github.com/apache/spark/pull/24464#issuecomment-494165538.
Explain an explain:
```scala
scala> sql("explain select 1").explain(true)
== Parsed Logical Plan ==
ExplainCommand 'Project [unresolvedalias(1, None)], false, false, false
== Analyzed Logical Plan ==
plan: string
ExplainCommand 'Project [unresolvedalias(1, None)], false, false, false
== Optimized Logical Plan ==
ExplainCommand 'Project [unresolvedalias(1, None)], false, false, false
== Physical Plan ==
Execute ExplainCommand
+- ExplainCommand 'Project [unresolvedalias(1, None)], false, false, false
```
Btw, I found there is a regression after applying hvanhovell's advice:
```scala
spark.readStream
.format("org.apache.spark.sql.streaming.test")
.load()
.explain(true)
```
```scala
== Parsed Logical Plan ==
StreamingRelation DataSource(org.apache.spark.sql.test.TestSparkSession3e8c7175,org.apache.spark.sql.streaming.test,List(),None,List(),None,Map(),None
), dummySource, [a#559]
== Analyzed Logical Plan ==
a: int
StreamingRelation DataSource(org.apache.spark.sql.test.TestSparkSession3e8c7175,org.apache.spark.sql.streaming.test,List(),None,List(),None,Map(),Non$
), dummySource, [a#559]
== Optimized Logical Plan ==
org.apache.spark.sql.AnalysisException: Queries with streaming sources must be executed with writeStream.start();;
dummySource
== Physical Plan ==
org.apache.spark.sql.AnalysisException: Queries with streaming sources must be executed with writeStream.start();;
dummySource
```
So I did a change to that to fix it too.
## How was this patch tested?
Added test and manually test.
Closes#24654 from viirya/SPARK-27439-3.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
Update the docs to reflect the changes made by https://github.com/apache/spark/pull/24129
## How was this patch tested?
N/A
Closes#24658 from cloud-fan/comment.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
When running a custom build of Spark which shades `commons-codec`, the `Sha1` expression generates code which fails to compile:
```
org.apache.spark.sql.catalyst.expressions.codegen.CodeGenerator: failed to compile: org.codehaus.commons.compiler.CompileException: File 'generated.java', Line 47, Column 93: A method named "sha1Hex" is not declared in any enclosing class nor any supertype, nor through a static import
```
This is caused by an interaction between Spark's code generator and the shading: the current codegen template includes the string `org.apache.commons.codec.digest.DigestUtils.sha1Hex` as part of a larger string literal, preventing JarJarLinks from being able to replace the class name with the shaded class's name. As a result, the generated code still references the original unshaded class name name, triggering an error in case the original unshaded dependency isn't on the path.
This problem impacts the `Sha1`, `Md5`, and `Base64` expressions.
To fix this problem and allow for proper shading, this PR updates the codegen templates to replace the hardcoded class names with `${classof[<name>].getName}` calls.
## How was this patch tested?
Existing tests.
To ensure that I found all occurrences of this problem, I used IntelliJ's "Find in Path" to search for lines matching the regex `^(?!import|package).*(org|com|net|io)\.(?!apache\.spark)` and then filtered matches to inspect only non-test "Usage in string constants" cases. This isn't _perfect_ but I think it'll catch most cases.
Closes#24655 from JoshRosen/fix-shaded-apache-commons.
Authored-by: Josh Rosen <rosenville@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
It's pretty useful if we can convert a physical plan back to a logical plan, e.g., in https://github.com/apache/spark/pull/24389
This PR introduces a new feature to `TreeNode`, which allows `TreeNode` to carry some extra information via a mutable map, and keep the information when it's copied.
The planner leverages this feature to put the logical plan into the physical plan.
## How was this patch tested?
a test suite that runs all TPCDS queries and checks that some common physical plans contain the corresponding logical plans.
Closes#24626 from cloud-fan/link.
Lead-authored-by: Wenchen Fan <wenchen@databricks.com>
Co-authored-by: Peng Bo <bo.peng1019@gmail.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
This pr fix `hadoop-3.2` test error:
```
- SPARK-27699 Converting disjunctions into ORC SearchArguments *** FAILED ***
Expected "...SS_THAN_EQUALS a 10)[
leaf-1 = (LESS_THAN a 1)
]expr = (or (not leaf...", but got "...SS_THAN_EQUALS a 10)[, leaf-1 = (LESS_THAN a 1), ]expr = (or (not leaf..." (HiveOrcFilterSuite.scala:445)
```
https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/105514/consoleFull
## How was this patch tested?
N/A
Closes#24639 from wangyum/SPARK-27699.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
This pr makes it support collect statistics when CTAS(create a data source table using the result of a query).
## How was this patch tested?
unit tests and manual tests:
```sql
bin/spark-sql --conf spark.sql.statistics.size.autoUpdate.enabled=true -S
spark-sql> CREATE TABLE spark_27694 USING parquet AS SELECT 'a', 'b';
spark-sql> DESC FORMATTED spark_27694;
a string NULL
b string NULL
# Detailed Table Information
Database default
Table spark_27694
Owner root
Created Time Mon May 13 19:45:33 GMT-07:00 2019
Last Access Wed Dec 31 17:00:00 GMT-07:00 1969
Created By Spark 3.0.0-SNAPSHOT
Type MANAGED
Provider parquet
Statistics 561 bytes
Location file:/user/hive/warehouse/spark_27694
Serde Library org.apache.hadoop.hive.ql.io.parquet.serde.ParquetHiveSerDe
InputFormat org.apache.hadoop.hive.ql.io.parquet.MapredParquetInputFormat
OutputFormat org.apache.hadoop.hive.ql.io.parquet.MapredParquetOutputFormat
```
Closes#24596 from wangyum/SPARK-27694.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
Add a SQL config property for the default v2 catalog.
Existing tests for regressions.
Closes#24594 from rdblue/SPARK-27693-add-default-catalog-config.
Authored-by: Ryan Blue <blue@apache.org>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Both look added as of 2.0 (see SPARK-12541 and SPARK-12706). I referred existing docs and examples in other API docs.
## How was this patch tested?
Manually built the documentation and, by running examples, by running `DESCRIBE FUNCTION EXTENDED`.
Closes#24642 from HyukjinKwon/SPARK-27771.
Authored-by: HyukjinKwon <gurwls223@apache.org>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull requesst?
If we set `hive.exec.stagingdir=.test-staging\tmp`,
But the staging directory is still `.hive-staging` on Windows OS.
Reasons for failure:
Test code:
```
val path = new Path("C:\\test\\hivetable")
println("path.toString: " + path.toString)
println("path.toUri.getPath: " + path.toUri.getPath)
```
Output:
```
path.toString: C:/test/hivetable
path.toUri.getPath: /C:/test/hivetable
```
We can see that `path.toUri.getPath` has one more separator than `path.toString`, and the separator is ' / ', not ' \ '
So `stagingPathName.stripPrefix(inputPathName).stripPrefix(File.separator).startsWith(".")` will return false
## How was this patch tested?
1. Existed tests
2. Manual testing on Windows OS
Closes#24446 from 10110346/stagingdir.
Authored-by: liuxian <liu.xian3@zte.com.cn>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Currently, in `ParquetFilters` and `OrcFilters`, if the child predicate of `Or` operator can't be entirely pushed down, the predicates will be thrown away.
In fact, the conjunctive predicates under `Or` operators can be partially pushed down.
For example, says `a` and `b` are convertible, while `c` can't be pushed down, the predicate
`a or (b and c)`
can be converted as
`(a or b) and (a or c)`
We can still push down `(a or b)`.
We can't push down disjunctive predicates only when one of its children is not partially convertible.
This PR also improve the filter pushing down logic in `DataSourceV2Strategy`. With partial filter push down in `Or` operator, the result of `pushedFilters()` might not exist in the mapping `translatedFilterToExpr`. To fix it, this PR changes the mapping `translatedFilterToExpr` as leaf filter expression to `sources.filter`, and later on rebuild the whole expression with the mapping.
## How was this patch tested?
Unit test
Closes#24598 from gengliangwang/pushdownDisjunctivePredicates.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Currently we have an analyzer rule, which resolves the output columns of data source v2 writing plans, to make sure the schema of input query is compatible with the table.
However, not all data sources need this check. For example, the `NoopDataSource` doesn't care about the schema of input query at all.
This PR introduces a new table capability: ACCEPT_ANY_SCHEMA. If a table reports this capability, we skip resolving output columns for it during write.
Note that, we already skip resolving output columns for `NoopDataSource` because it implements `SupportsSaveMode`. However, `SupportsSaveMode` is a hack and will be removed soon.
## How was this patch tested?
new test cases
Closes#24469 from cloud-fan/schema-check.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Some APIs in Structured Streaming requires the user to specify an interval. Right now these APIs don't accept upper-case strings.
This PR adds a new method `fromCaseInsensitiveString` to `CalendarInterval` to support paring upper-case strings, and fixes all APIs that need to parse an interval string.
## How was this patch tested?
The new unit test.
Closes#24619 from zsxwing/SPARK-27735.
Authored-by: Shixiong Zhu <zsxwing@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
removed the unused "UnsafeKeyValueSorter.java" file
## How was this patch tested?
Ran Compilation and UT locally.
Please review http://spark.apache.org/contributing.html before opening a pull request.
Closes#24622 from shivusondur/jira27722.
Authored-by: shivusondur <shivusondur@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This is a followup of https://github.com/apache/spark/pull/20365 .
#20365 fixed this problem when the hint node is a root node. This PR fixes this problem for all the cases.
## How was this patch tested?
a new test
Closes#24580 from cloud-fan/bug.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
When we upgraded the built-in Hive to 2.3.4, the current `hive-thriftserver` module is not compatible, such as these Hive changes:
1. [HIVE-12442](https://issues.apache.org/jira/browse/HIVE-12442) HiveServer2: Refactor/repackage HiveServer2's Thrift code so that it can be used in the tasks
2. [HIVE-12237](https://issues.apache.org/jira/browse/HIVE-12237) Use slf4j as logging facade
3. [HIVE-13169](https://issues.apache.org/jira/browse/HIVE-13169) HiveServer2: Support delegation token based connection when using http transport
So this PR moves the incompatible code to `sql/hive-thriftserver/v1.2.1` and copies it to `sql/hive-thriftserver/v2.3.4` for the next code review.
## How was this patch tested?
manual tests:
```
diff -urNa sql/hive-thriftserver/v1.2.1 sql/hive-thriftserver/v2.3.4
```
Closes#24282 from wangyum/SPARK-27354.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
In the existing code, a broadcast execution timeout for the Future only causes a query failure, but the job running with the broadcast and the computation in the Future are not canceled. This wastes resources and slows down the other jobs. This PR tries to cancel both the running job and the running hashed relation construction thread.
## How was this patch tested?
Add new test suite `BroadcastExchangeExec`
Closes#24595 from jiangxb1987/SPARK-20774.
Authored-by: Xingbo Jiang <xingbo.jiang@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
This replaces use of collection classes like `MutableList` and `ArrayStack` with workalikes that are available in 2.12, as they will be removed in 2.13. It also removes use of `.to[Collection]` as its uses was superfluous anyway. Removing `collection.breakOut` will have to wait until 2.13
## How was this patch tested?
Existing tests
Closes#24586 from srowen/SPARK-27682.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
`RecordBinaryComparator`, `UnsafeExternalRowSorter` and `UnsafeKeyValueSorter` now locates in catalyst, which should be moved to core, as they're used only in physical plan.
## How was this patch tested?
exist tests.
Closes#24607 from xianyinxin/SPARK-27713.
Authored-by: xy_xin <xianyin.xxy@alibaba-inc.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This adds a v2 implementation for CTAS queries
* Update the SQL parser to parse CREATE queries using multi-part identifiers
* Update `CheckAnalysis` to validate partitioning references with the CTAS query schema
* Add `CreateTableAsSelect` v2 logical plan and `CreateTableAsSelectExec` v2 physical plan
* Update create conversion from `CreateTableAsSelectStatement` to support the new v2 logical plan
* Update `DataSourceV2Strategy` to convert v2 CTAS logical plan to the new physical plan
* Add `findNestedField` to `StructType` to support reference validation
## How was this patch tested?
We have been running these changes in production for several months. Also:
* Add a test suite `CreateTablePartitioningValidationSuite` for new analysis checks
* Add a test suite for v2 SQL, `DataSourceV2SQLSuite`
* Update catalyst `DDLParserSuite` to use multi-part identifiers (`Seq[String]`)
* Add test cases to `PlanResolutionSuite` for v2 CTAS: known catalog and v2 source implementation
Closes#24570 from rdblue/SPARK-24923-add-v2-ctas.
Authored-by: Ryan Blue <blue@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
We should remove materialized view first otherwise(note that Hive 3.1 could reproduce this issue):
```scala
Cause: org.apache.derby.shared.common.error.DerbySQLIntegrityConstraintViolationException: DELETE on table 'TBLS' caused a violation of foreign key constraint 'MV_TABLES_USED_FK2' for key (4). The statement has been rolled back.
at org.apache.derby.impl.jdbc.SQLExceptionFactory.getSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.Util.generateCsSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.TransactionResourceImpl.wrapInSQLException(Unknown Source)
at org.apache.derby.impl.jdbc.TransactionResourceImpl.handleException(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedConnection.handleException(Unknown Source)
at org.apache.derby.impl.jdbc.ConnectionChild.handleException(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedStatement.executeStatement(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedPreparedStatement.executeBatchElement(Unknown Source)
at org.apache.derby.impl.jdbc.EmbedStatement.executeLargeBatch(Unknown Source)
```
## How was this patch tested?
Existing test
Closes#24592 from wangyum/SPARK-27690.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
This removes usage of `Traversable`, which is removed in Scala 2.13. This is mostly an internal change, except for the change in the `SparkConf.setAll` method. See additional comments below.
## How was this patch tested?
Existing tests.
Closes#24584 from srowen/SPARK-27680.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
The below example works with both Mysql and Hive, however not with spark.
```
mysql> select * from date_test where date_col >= '2000-1-1';
+------------+
| date_col |
+------------+
| 2000-01-01 |
+------------+
```
The reason is that Spark casts both sides to String type during date and string comparison for partial date support. Please find more details in https://issues.apache.org/jira/browse/SPARK-8420.
Based on some tests, the behavior of Date and String comparison in Hive and Mysql:
Hive: Cast to Date, partial date is not supported
Mysql: Cast to Date, certain "partial date" is supported by defining certain date string parse rules. Check out str_to_datetime in https://github.com/mysql/mysql-server/blob/5.5/sql-common/my_time.c
As below date patterns have been supported, the PR is to cast string to date when comparing string and date:
```
`yyyy`
`yyyy-[m]m`
`yyyy-[m]m-[d]d`
`yyyy-[m]m-[d]d `
`yyyy-[m]m-[d]d *`
`yyyy-[m]m-[d]dT*
```
## How was this patch tested?
UT has been added
Closes#24567 from pengbo/SPARK-27638.
Authored-by: mingbo.pb <mingbo.pb@alibaba-inc.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
When a null in a nested field in struct, casting from the struct throws error, currently.
```scala
scala> sql("select cast(struct(1, null) as struct<a:int,b:int>)").show
scala.MatchError: NullType (of class org.apache.spark.sql.types.NullType$)
at org.apache.spark.sql.catalyst.expressions.Cast.castToInt(Cast.scala:447)
at org.apache.spark.sql.catalyst.expressions.Cast.cast(Cast.scala:635)
at org.apache.spark.sql.catalyst.expressions.Cast.$anonfun$castStruct$1(Cast.scala:603)
```
Similarly, inline table, which casts null in nested field under the hood, also throws an error.
```scala
scala> sql("select * FROM VALUES (('a', (10, null))), (('b', (10, 50))), (('c', null)) AS tab(x, y)").show
org.apache.spark.sql.AnalysisException: failed to evaluate expression named_struct('col1', 10, 'col2', NULL): NullType (of class org.apache.spark.sql.t
ypes.NullType$); line 1 pos 14
at org.apache.spark.sql.catalyst.analysis.package$AnalysisErrorAt.failAnalysis(package.scala:47)
at org.apache.spark.sql.catalyst.analysis.ResolveInlineTables.$anonfun$convert$6(ResolveInlineTables.scala:106)
```
This fixes the issue.
## How was this patch tested?
Added tests.
Closes#24576 from viirya/cast-null.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
This pr fix hadoop-3.2 test issues(except the `hive-thriftserver` module):
1. Add `hive.metastore.schema.verification` and `datanucleus.schema.autoCreateAll` to HiveConf.
2. hadoop-3.2 support access the Hive metastore from 0.12 to 2.2
After [SPARK-27176](https://issues.apache.org/jira/browse/SPARK-27176) and this PR, we upgraded the built-in Hive to 2.3 when enabling the Hadoop 3.2+ profile. This upgrade fixes the following issues:
- [HIVE-6727](https://issues.apache.org/jira/browse/HIVE-6727): Table level stats for external tables are set incorrectly.
- [HIVE-15653](https://issues.apache.org/jira/browse/HIVE-15653): Some ALTER TABLE commands drop table stats.
- [SPARK-12014](https://issues.apache.org/jira/browse/SPARK-12014): Spark SQL query containing semicolon is broken in Beeline.
- [SPARK-25193](https://issues.apache.org/jira/browse/SPARK-25193): insert overwrite doesn't throw exception when drop old data fails.
- [SPARK-25919](https://issues.apache.org/jira/browse/SPARK-25919): Date value corrupts when tables are "ParquetHiveSerDe" formatted and target table is Partitioned.
- [SPARK-26332](https://issues.apache.org/jira/browse/SPARK-26332): Spark sql write orc table on viewFS throws exception.
- [SPARK-26437](https://issues.apache.org/jira/browse/SPARK-26437): Decimal data becomes bigint to query, unable to query.
## How was this patch tested?
This pr test Spark’s Hadoop 3.2 profile on jenkins and #24591 test Spark’s Hadoop 2.7 profile on jenkins
This PR close#24591Closes#24391 from wangyum/SPARK-27402.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
This PR goes to add `max_by()` and `min_by()` SQL aggregate functions.
Quoting from the [Presto docs](https://prestodb.github.io/docs/current/functions/aggregate.html#max_by)
> max_by(x, y) → [same as x]
> Returns the value of x associated with the maximum value of y over all input values.
`min_by()` works similarly.
## How was this patch tested?
Added tests.
Closes#24557 from viirya/SPARK-27653.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Currently,thread number of broadcast-exchange thread pool is fixed and keepAliveSeconds is also fixed as 60s.
```
object BroadcastExchangeExec {
private[execution] val executionContext = ExecutionContext.fromExecutorService(
ThreadUtils.newDaemonCachedThreadPool("broadcast-exchange", 128))
}
/**
* Create a cached thread pool whose max number of threads is `maxThreadNumber`. Thread names
* are formatted as prefix-ID, where ID is a unique, sequentially assigned integer.
*/
def newDaemonCachedThreadPool(
prefix: String, maxThreadNumber: Int, keepAliveSeconds: Int = 60): ThreadPoolExecutor = {
val threadFactory = namedThreadFactory(prefix)
val threadPool = new ThreadPoolExecutor(
maxThreadNumber, // corePoolSize: the max number of threads to create before queuing the tasks
maxThreadNumber, // maximumPoolSize: because we use LinkedBlockingDeque, this one is not used
keepAliveSeconds,
TimeUnit.SECONDS,
new LinkedBlockingQueue[Runnable],
threadFactory)
threadPool.allowCoreThreadTimeOut(true)
threadPool
}
```
But some times, if the Thead object do not GC quickly it may caused server(driver) OOM. In such case,we need to make this thread pool configurable.
A case has described in https://issues.apache.org/jira/browse/SPARK-26601
## How was this patch tested?
UT
Closes#23670 from caneGuy/zhoukang/make-broadcat-config.
Authored-by: zhoukang <zhoukang199191@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
In File source V1, the statistics of `HadoopFsRelation` is `compressionFactor * sizeInBytesOfAllFiles`.
To follow it, we can implement the interface SupportsReportStatistics in FileScan and report the same statistics.
## How was this patch tested?
Unit test
Closes#24571 from gengliangwang/stats.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
To move DS v2 API to the catalyst module, we can't refer to an internal class (`MutableColumnarRow`) in `ColumnarBatch`.
This PR creates a read-only version of `MutableColumnarRow`, and use it in `ColumnarBatch`.
close https://github.com/apache/spark/pull/24546
## How was this patch tested?
existing tests
Closes#24581 from cloud-fan/mutable-row.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
We should add since info to all expressions.
SPARK-7886 Rand / Randn
af3746ce0d RLike, Like (I manually checked that it exists from 1.0.0)
SPARK-8262 Split
SPARK-8256 RegExpReplace
SPARK-8255 RegExpExtract
9aadcffabd Coalesce / IsNull / IsNotNull (I manually checked that it exists from 1.0.0)
SPARK-14541 IfNull / NullIf / Nvl / Nvl2
SPARK-9080 IsNaN
SPARK-9168 NaNvl
## How was this patch tested?
N/A
Closes#24579 from HyukjinKwon/SPARK-27673.
Authored-by: HyukjinKwon <gurwls223@apache.org>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
- the accumulator warning is too verbose
- when a test fails with schema mismatch, you never see the error message / exception
Closes#24549 from ericl/test-nits.
Lead-authored-by: Eric Liang <ekl@databricks.com>
Co-authored-by: Eric Liang <ekhliang@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
If a type is annotated, `ScalaReflection` can fail if the datatype is an `Option`, a `Seq`, a `Map` and other similar types. This is because it assumes we are dealing with `TypeRef`, while types with annotations are `AnnotatedType`.
The PR deals with the case the annotation is present.
## How was this patch tested?
added UT
Closes#24564 from mgaido91/SPARK-27625.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
…rtBasedAggregate
Normally, the aggregate operations that are invoked for an aggregation buffer for User Defined Aggregate Functions(UDAF) follow the order like initialize(), update(), eval() OR initialize(), merge(), eval(). However, after a certain threshold configurable by spark.sql.objectHashAggregate.sortBased.fallbackThreshold is reached, ObjectHashAggregate falls back to SortBasedAggregator which invokes the merge or update operation without calling initialize() on the aggregate buffer.
## What changes were proposed in this pull request?
The fix here is to initialize aggregate buffers again when fallback to SortBasedAggregate operator happens.
## How was this patch tested?
The patch was tested as part of [SPARK-24935](https://issues.apache.org/jira/browse/SPARK-24935) as documented in PR https://github.com/apache/spark/pull/23778.
Closes#24149 from pgandhi999/SPARK-27207.
Authored-by: pgandhi <pgandhi@verizonmedia.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
### Background:
The data source option `pathGlobFilter` is introduced for Binary file format: https://github.com/apache/spark/pull/24354 , which can be used for filtering file names, e.g. reading `.png` files only while there is `.json` files in the same directory.
### Proposal:
Make the option `pathGlobFilter` as a general option for all file sources. The path filtering should happen in the path globbing on Driver.
### Motivation:
Filtering the file path names in file scan tasks on executors is kind of ugly.
### Impact:
1. The splitting of file partitions will be more balanced.
2. The metrics of file scan will be more accurate.
3. Users can use the option for reading other file sources.
## How was this patch tested?
Unit tests
Closes#24518 from gengliangwang/globFilter.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
The mothod `populateStartOffsets` exists a inappropriate identifier `secondLatestBatchId`.
I think `secondLatestBatchId = latestBatchId - 1` and `offsetLog.get(latestBatchId - 1)` is a offset.
So I change the identifier as follows:
`secondLatestOffsets = offsetLog.get(latestBatchId - 1)`
## How was this patch tested?
Exists UT.
Closes#24550 from beliefer/fix-inappropriate-identifier.
Authored-by: gengjiaan <gengjiaan@360.cn>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
To move DS v2 to the catalyst module, we can't make v2 offset rely on v1 offset, as v1 offset is in sql/core.
## How was this patch tested?
existing tests
Closes#24538 from cloud-fan/offset.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
Add a legacy flag to restore the old session init behavior, where SparkConf defaults take precedence over configs in a parent session.
Closes#24540 from jose-torres/oss.
Authored-by: Jose Torres <torres.joseph.f+github@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
This adds the TableCatalog API proposed in the [Table Metadata API SPIP](https://docs.google.com/document/d/1zLFiA1VuaWeVxeTDXNg8bL6GP3BVoOZBkewFtEnjEoo/edit#heading=h.m45webtwxf2d).
For `TableCatalog` to use `Table`, it needed to be moved into the catalyst module where the v2 catalog API is located. This also required moving `TableCapability`. Most of the files touched by this PR are import changes needed by this move.
## How was this patch tested?
This adds a test implementation and contract tests.
Closes#24246 from rdblue/SPARK-24252-add-table-catalog-api.
Authored-by: Ryan Blue <blue@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Fixed the `spark-<version>-yarn-shuffle.jar` artifact packaging to shade the native netty libraries:
- shade the `META-INF/native/libnetty_*` native libraries when packagin
the yarn shuffle service jar. This is required as netty library loader
derives that based on shaded package name.
- updated the `org/spark_project` shade package prefix to `org/sparkproject`
(i.e. removed underscore) as the former breaks the netty native lib loading.
This was causing the yarn external shuffle service to fail
when spark.shuffle.io.mode=EPOLL
## How was this patch tested?
Manual tests
Closes#24502 from amuraru/SPARK-27610_master.
Authored-by: Adi Muraru <amuraru@adobe.com>
Signed-off-by: Marcelo Vanzin <vanzin@cloudera.com>
## What changes were proposed in this pull request?
`BaseStreamingSource` and `BaseStreamingSink` is used to unify v1 and v2 streaming data source API in some code paths.
This PR removes these 2 interfaces, and let the v1 API extend v2 API to keep API compatibility.
The motivation is https://github.com/apache/spark/pull/24416 . We want to move data source v2 to catalyst module, but `BaseStreamingSource` and `BaseStreamingSink` are in sql/core.
## How was this patch tested?
existing tests
Closes#24471 from cloud-fan/streaming.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Because a review is resolved during analysis when we create a dataset, the content of the view is determined when the dataset is created, not when it is evaluated. Now the explain result of a dataset is not correctly consistent with the collected result of it, because we use pre-analyzed logical plan of the dataset in explain command. The explain command will analyzed the logical plan passed in. So if a view is changed after the dataset was created, the plans shown by explain command aren't the same with the plan of the dataset.
```scala
scala> spark.range(10).createOrReplaceTempView("test")
scala> spark.range(5).createOrReplaceTempView("test2")
scala> spark.sql("select * from test").createOrReplaceTempView("tmp001")
scala> val df = spark.sql("select * from tmp001")
scala> spark.sql("select * from test2").createOrReplaceTempView("tmp001")
scala> df.show
+---+
| id|
+---+
| 0|
| 1|
| 2|
| 3|
| 4|
| 5|
| 6|
| 7|
| 8|
| 9|
+---+
scala> df.explain(true)
```
Before:
```scala
== Parsed Logical Plan ==
'Project [*]
+- 'UnresolvedRelation `tmp001`
== Analyzed Logical Plan ==
id: bigint
Project [id#2L]
+- SubqueryAlias `tmp001`
+- Project [id#2L]
+- SubqueryAlias `test2`
+- Range (0, 5, step=1, splits=Some(12))
== Optimized Logical Plan ==
Range (0, 5, step=1, splits=Some(12))
== Physical Plan ==
*(1) Range (0, 5, step=1, splits=12)
```
After:
```scala
== Parsed Logical Plan ==
'Project [*]
+- 'UnresolvedRelation `tmp001`
== Analyzed Logical Plan ==
id: bigint
Project [id#0L]
+- SubqueryAlias `tmp001`
+- Project [id#0L]
+- SubqueryAlias `test`
+- Range (0, 10, step=1, splits=Some(12))
== Optimized Logical Plan ==
Range (0, 10, step=1, splits=Some(12))
== Physical Plan ==
*(1) Range (0, 10, step=1, splits=12)
```
To fix it, this passes query execution of Dataset when explaining it. The query execution contains pre-analyzed plan which is consistent with Dataset's result.
## How was this patch tested?
Manually test and unit test.
Closes#24464 from viirya/SPARK-27439-2.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
**Description from JIRA**
For the JDBC option `query`, we use the identifier name to start with underscore: s"(${subquery}) _SPARK_GEN_JDBC_SUBQUERY_NAME${curId.getAndIncrement()}". This is not supported by Oracle.
The Oracle doesn't seem to support identifier name to start with non-alphabet character (unless it is quoted) and has length restrictions as well. [link](https://docs.oracle.com/cd/B19306_01/server.102/b14200/sql_elements008.htm)
In this PR, the generated alias name 'SPARK_GEN_JDBC_SUBQUERY_NAME<int value>' is fixed to remove "_" prefix and also the alias name is shortened to not exceed the identifier length limit.
## How was this patch tested?
Tests are added for MySql, Postgress, Oracle and DB2 to ensure enough coverage.
Closes#24532 from dilipbiswal/SPARK-27596.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
In SPARK-27612, one correctness issue was reported. When protocol 4 is used to pickle Python objects, we found that unpickled objects were wrong. A temporary fix was proposed by not using highest protocol.
It was found that Opcodes.MEMOIZE was appeared in the opcodes in protocol 4. It is suspect to this issue.
A deeper dive found that Opcodes.MEMOIZE stores objects into internal map of Unpickler object. We use single Unpickler object to unpickle serialized Python bytes. Stored objects intervenes next round of unpickling, if the map is not cleared.
We has two options:
1. Continues to reuse Unpickler, but calls its close after each unpickling.
2. Not to reuse Unpickler and create new Unpickler object in each unpickling.
This patch takes option 1.
## How was this patch tested?
Passing the test added in SPARK-27612 (#24519).
Closes#24521 from viirya/SPARK-27629.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
`date_trunc` argument order was flipped, phrasing was awkward.
## How was this patch tested?
Documentation-only.
Closes#24522 from mojodna/patch-2.
Authored-by: Seth Fitzsimmons <seth@mojodna.net>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
SQLConf does not load hive-site.xml.So HiveSerDe should fall back to hadoopconf if hive.default.fileformat is not found in SQLConf
## How was this patch tested?
Tested manually.
Added UT
Closes#24489 from sandeep-katta/spark-27555.
Authored-by: sandeep katta <sandeep.katta2007@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This PR replaces for-comprehension if statement with while loop to gain better performance in `TypeUtils.compareBinary`.
## How was this patch tested?
Add UT to test old version and new version comparison result
Closes#24494 from woudygao/opt_binary_compare.
Authored-by: gaoweikang <gaoweikang@bytedance.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
`Row.toString` is currently causing the useless creation of an `Array` containing all the values in the row before generating the string containing it. This operation adds a considerable overhead.
The PR proposes to avoid this operation in order to get a faster implementation.
## How was this patch tested?
Run
```scala
test("Row toString perf test") {
val n = 100000
val rows = (1 to n).map { i =>
Row(i, i.toDouble, i.toString, i.toShort, true, null)
}
// warmup
(1 to 10).foreach { _ => rows.foreach(_.toString) }
val times = (1 to 100).map { _ =>
val t0 = System.nanoTime()
rows.foreach(_.toString)
val t1 = System.nanoTime()
t1 - t0
}
// scalastyle:off println
println(s"Avg time on ${times.length} iterations for $n toString:" +
s" ${times.sum.toDouble / times.length / 1e6} ms")
// scalastyle:on println
}
```
Before the PR:
```
Avg time on 100 iterations for 100000 toString: 61.08408419 ms
```
After the PR:
```
Avg time on 100 iterations for 100000 toString: 38.16539432 ms
```
This means the new implementation is about 1.60X faster than the original one.
Closes#24505 from mgaido91/SPARK-27607.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
After we added other fields, `arguments`, `examples`, `note` and `since` at SPARK-21485 and `deprecated` at SPARK-27328, we have nicer way to separately describe extended usages.
`extended` field and method at `ExpressionDescription`/`ExpressionInfo` is now pretty useless - it's not used in Spark side and only exists to keep backward compatibility.
This PR proposes to deprecate it.
## How was this patch tested?
Manually checked the deprecation waring is properly shown.
Closes#24500 from HyukjinKwon/SPARK-27606.
Authored-by: HyukjinKwon <gurwls223@apache.org>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This PR is to add test cases for ensuring that we do not have unnecessary access to externalCatalog.
In the future, we can follow these examples to improve our test coverage in this area.
## How was this patch tested?
N/A
Closes#24511 from gatorsmile/addTestcaseSpark-27618.
Authored-by: gatorsmile <gatorsmile@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
This PR adds SparkR with Arrow optimization documentation.
Note that looks CRAN issue in Arrow side won't look likely fixed soon, IMHO, even after Spark 3.0.
If it happen to be fixed, I will fix this doc too later.
Another note is that Arrow R package itself requires R 3.5+. So, I intentionally didn't note this.
## How was this patch tested?
Manually built and checked.
Closes#24506 from HyukjinKwon/SPARK-26924.
Authored-by: HyukjinKwon <gurwls223@apache.org>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Fix bug in UnivocityParser. makeConverter method didn't work correctly for UsedDefinedType
## How was this patch tested?
A test suite for UnivocityParser has been extended.
Closes#24496 from kalkolab/spark-27591.
Authored-by: Artem Kalchenko <artem.kalchenko@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
On a second look in comments, seems like the JobConf isn't needed anymore here. It was used inconsistently before, it seems, and I don't see any reason a Hadoop Job config is required here anyway.
## How was this patch tested?
Existing tests.
Closes#24491 from srowen/SPARK-26936.2.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
This is a followup of https://github.com/apache/spark/pull/24144 . #24144 missed one case: when hash aggregate fallback to sort aggregate, the life cycle of UDAF is: INIT -> UPDATE -> MERGE -> FINISH.
However, not all Hive UDAF can support it. Hive UDAF knows the aggregation mode when creating the aggregation buffer, so that it can create different buffers for different inputs: the original data or the aggregation buffer. Please see an example in the [sketches library](7f9e76e9e0/src/main/java/com/yahoo/sketches/hive/cpc/DataToSketchUDAF.java (L107)). The buffer for UPDATE may not support MERGE.
This PR updates the Hive UDAF adapter in Spark to support INIT -> UPDATE -> MERGE -> FINISH, by turning it to INIT -> UPDATE -> FINISH + IINIT -> MERGE -> FINISH.
## How was this patch tested?
a new test case
Closes#24459 from cloud-fan/hive-udaf.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
If a file is too big (>2GB), we should fail fast and do not try to read the file.
## How was this patch tested?
(Please explain how this patch was tested. E.g. unit tests, integration tests, manual tests)
(If this patch involves UI changes, please attach a screenshot; otherwise, remove this)
Please review http://spark.apache.org/contributing.html before opening a pull request.
Closes#24483 from mengxr/SPARK-27588.
Authored-by: Xiangrui Meng <meng@databricks.com>
Signed-off-by: Xiangrui Meng <meng@databricks.com>
## What changes were proposed in this pull request?
There is a MemorySink v2 already so v1 can be removed. In this PR I've removed it completely.
What this PR contains:
* V1 memory sink removal
* V2 memory sink renamed to become the only implementation
* Since DSv2 sends exceptions in a chained format (linking them with cause field) I've made python side compliant
* Adapted all the tests
## How was this patch tested?
Existing unit tests.
Closes#24403 from gaborgsomogyi/SPARK-23014.
Authored-by: Gabor Somogyi <gabor.g.somogyi@gmail.com>
Signed-off-by: Marcelo Vanzin <vanzin@cloudera.com>
## What changes were proposed in this pull request?
This PR avoids usage of reflective calls in Scala. It removes the import that suppresses the warnings and rewrites code in small ways to avoid accessing methods that aren't technically accessible.
## How was this patch tested?
Existing tests.
Closes#24463 from srowen/SPARK-27571.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
I want to get rid of as much use of `scala.language.existentials` as possible for 3.0. It's a complicated language feature that generates warnings unless this value is imported. It might even be on the way out of Scala: https://contributors.scala-lang.org/t/proposal-to-remove-existential-types-from-the-language/2785
For Spark, it comes up mostly where the code plays fast and loose with generic types, not the advanced situations you'll often see referenced where this feature is explained. For example, it comes up in cases where a function returns something like `(String, Class[_])`. Scala doesn't like matching this to any other instance of `(String, Class[_])` because doing so requires inferring the existence of some type that satisfies both. Seems obvious if the generic type is a wildcard, but, not technically something Scala likes to let you get away with.
This is a large PR, and it only gets rid of _most_ instances of `scala.language.existentials`. The change should be all compile-time and shouldn't affect APIs or logic.
Many of the changes simply touch up sloppiness about generic types, making the known correct value explicit in the code.
Some fixes involve being more explicit about the existence of generic types in methods. For instance, `def foo(arg: Class[_])` seems innocent enough but should really be declared `def foo[T](arg: Class[T])` to let Scala select and fix a single type when evaluating calls to `foo`.
For kind of surprising reasons, this comes up in places where code evaluates a tuple of things that involve a generic type, but is OK if the two parts of the tuple are evaluated separately.
One key change was altering `Utils.classForName(...): Class[_]` to the more correct `Utils.classForName[T](...): Class[T]`. This caused a number of small but positive changes to callers that otherwise had to cast the result.
In several tests, `Dataset[_]` was used where `DataFrame` seems to be the clear intent.
Finally, in a few cases in MLlib, the return type `this.type` was used where there are no subclasses of the class that uses it. This really isn't needed and causes issues for Scala reasoning about the return type. These are just changed to be concrete classes as return types.
After this change, we have only a few classes that still import `scala.language.existentials` (because modifying them would require extensive rewrites to fix) and no build warnings.
## How was this patch tested?
Existing tests.
Closes#24431 from srowen/SPARK-27536.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Currently `countDistinct("*")` doesn't work. An analysis exception is thrown:
```scala
val df = sql("select id % 100 from range(100000)")
df.select(countDistinct("*")).first()
org.apache.spark.sql.AnalysisException: Invalid usage of '*' in expression 'count';
```
Users need to use `expr`.
```scala
df.select(expr("count(distinct(*))")).first()
```
This limits some API usage like `df.select(count("*"), countDistinct("*))`.
The PR takes the simplest fix that lets analyzer expand star and resolve `count` function.
## How was this patch tested?
Added unit test.
Closes#24482 from viirya/SPARK-27581.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
```
========================================================================
Running Scala style checks
========================================================================
[info] Checking Scala style using SBT with these profiles: -Phadoop-2.7 -Pkubernetes -Phive-thriftserver -Pkinesis-asl -Pyarn -Pspark-ganglia-lgpl -Phive -Pmesos
Scalastyle checks failed at following occurrences:
[error] /home/jenkins/workspace/SparkPullRequestBuilder/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/v2/FileScan.scala:29:0: org.apache.spark.sql.sources.Filter is in wrong order relative to org.apache.spark.sql.sources.v2.reader..
[error] Total time: 17 s, completed Apr 29, 2019 3:09:43 AM
```
https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/104987/console
## How was this patch tested?
manual tests:
```
dev/scalastyle
```
Closes#24487 from wangyum/SPARK-27580.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
The method `QueryPlan.sameResult` is used for comparing logical plans in order to:
1. cache data in CacheManager
2. uncache data in CacheManager
3. Reuse subqueries
4. etc...
Currently the method `sameReuslt` always return false for `BatchScanExec`. We should fix it by implementing `doCanonicalize` for the node.
## How was this patch tested?
Unit test
Closes#24475 from gengliangwang/sameResultForV2.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
A follow-up task from SPARK-25348. To save I/O cost, Spark shouldn't attempt to read the file if users didn't request the `content` column. For example:
```
spark.read.format("binaryFile").load(path).filter($"length" < 1000000).count()
```
## How was this patch tested?
Unit test added.
Please review http://spark.apache.org/contributing.html before opening a pull request.
Closes#24473 from WeichenXu123/SPARK-27534.
Lead-authored-by: Xiangrui Meng <meng@databricks.com>
Co-authored-by: WeichenXu <weichen.xu@databricks.com>
Signed-off-by: Xiangrui Meng <meng@databricks.com>
## What changes were proposed in this pull request?
This PR addresses SPARK-23619: https://issues.apache.org/jira/browse/SPARK-23619
It adds additional comments indicating the default column names for the `explode` and `posexplode`
functions in Spark-SQL.
Functions for which comments have been updated so far:
* stack
* inline
* explode
* posexplode
* explode_outer
* posexplode_outer
## How was this patch tested?
This is just a change in the comments. The package builds and tests successfullly after the change.
Closes#23748 from jashgala/SPARK-23619.
Authored-by: Jash Gala <jashgala@amazon.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
some minor updates:
- `Execute` action miss `name` message
- typo in SS document
- typo in SQLConf
## How was this patch tested?
N/A
Closes#24466 from uncleGen/minor-fix.
Authored-by: uncleGen <hustyugm@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This is a followup of https://github.com/apache/spark/pull/24012 , to add the corresponding capabilities for streaming.
## How was this patch tested?
existing tests
Closes#24129 from cloud-fan/capability.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
We can get the latest downloadable Spark versions from https://dist.apache.org/repos/dist/release/spark/
## How was this patch tested?
manually.
Closes#24454 from cloud-fan/test.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
When there are mismatched types among cases or else values in case when expression, current error message is hard to read to figure out what and where the mismatch is.
This patch simply improves the error message for mismatched types for case when.
Before:
```scala
scala> spark.range(100).select(when('id === 1, array(struct('id * 123456789 + 123456789 as "x"))).otherwise(array(struct('id * 987654321 + 987654321 as
"y"))))
org.apache.spark.sql.AnalysisException: cannot resolve 'CASE WHEN (`id` = CAST(1 AS BIGINT)) THEN array(named_struct('x', ((`id` * CAST(123456789 AS BI
GINT)) + CAST(123456789 AS BIGINT)))) ELSE array(named_struct('y', ((`id` * CAST(987654321 AS BIGINT)) + CAST(987654321 AS BIGINT)))) END' due to data
type mismatch: THEN and ELSE expressions should all be same type or coercible to a common type;;
```
After:
```scala
scala> spark.range(100).select(when('id === 1, array(struct('id * 123456789 + 123456789 as "x"))).otherwise(array(struct('id * 987654321 + 987654321 as
"y"))))
org.apache.spark.sql.AnalysisException: cannot resolve 'CASE WHEN (`id` = CAST(1 AS BIGINT)) THEN array(named_struct('x', ((`id` * CAST(123456789 AS BI
GINT)) + CAST(123456789 AS BIGINT)))) ELSE array(named_struct('y', ((`id` * CAST(987654321 AS BIGINT)) + CAST(987654321 AS BIGINT)))) END' due to data
type mismatch: THEN and ELSE expressions should all be same type or coercible to a common type, got CASE WHEN ... THEN array<struct<x:bigint>> ELSE arr
ay<struct<y:bigint>> END;;
```
## How was this patch tested?
Added unit test.
Closes#24453 from viirya/SPARK-27551.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
update `HiveExternalCatalogVersionsSuite` to test 2.4.2, as 2.4.1 will be removed from Mirror Network soon.
## How was this patch tested?
N/A
Closes#24452 from cloud-fan/release.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This patch makes several test flakiness fixes.
## How was this patch tested?
N/A
Closes#24434 from gatorsmile/fixFlakyTest.
Lead-authored-by: gatorsmile <gatorsmile@gmail.com>
Co-authored-by: Hyukjin Kwon <gurwls223@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Kind of related to https://github.com/gatorsmile/spark/pull/5 - let's update genjavadoc to see if it generates fewer spurious javadoc errors to begin with.
## How was this patch tested?
Existing docs build
Closes#24443 from srowen/genjavadoc013.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Migrate JSON to File Data Source V2
## How was this patch tested?
Unit test
Closes#24058 from gengliangwang/jsonV2.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR is follow up of https://github.com/apache/spark/pull/24286. As gatorsmile pointed out that column with null value is inaccurate as well.
```
> select key from test;
2
NULL
1
spark-sql> desc extended test key;
col_name key
data_type int
comment NULL
min 1
max 2
num_nulls 1
distinct_count 2
```
The distinct count should be distinct_count + 1 when column contains null value.
## How was this patch tested?
Existing tests & new UT added.
Closes#24436 from pengbo/aggregation_estimation.
Authored-by: pengbo <bo.peng1019@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Added new JSON benchmarks related to date and timestamps operations:
- Write date/timestamp to JSON files
- `to_json()` and `from_json()` for dates and timestamps
- Read date/timestamps from JSON files, and infer schemas
- Parse and infer schemas from `Dataset[String]`
Also existing JSON benchmarks are ported on `NoOp` datasource.
Closes#24430 from MaxGekk/json-datetime-benchmark.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Added new CSV benchmarks related to date and timestamps operations:
- Write date/timestamp to CSV files
- `to_csv()` and `from_csv()` for dates and timestamps
- Read date/timestamps from CSV files, and infer schemas
- Parse and infer schemas from `Dataset[String]`
Also existing CSV benchmarks are ported on `NoOp` datasource.
Closes#24429 from MaxGekk/csv-timestamp-benchmark.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
In the PR, I propose to use the `TIMESTAMP_MICROS` logical type for timestamps written to parquet files. The type matches semantically to Catalyst's `TimestampType`, and stores microseconds since epoch in UTC time zone. This will allow to avoid conversions of microseconds to nanoseconds and to Julian calendar. Also this will reduce sizes of written parquet files.
## How was this patch tested?
By existing test suites.
Closes#24425 from MaxGekk/parquet-timestamp_micros.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Currently "EXPLAIN DESC TABLE" is special cased and outputs a single row relation as following.
Current output:
```sql
spark-sql> EXPLAIN DESCRIBE TABLE t;
== Physical Plan ==
*(1) Scan OneRowRelation[]
```
This is not consistent with how we handle explain processing for other commands. In this PR, the inconsistency is handled by removing the special handling for "describe table".
After change:
```sql
spark-sql> EXPLAIN DESC EXTENDED t
== Physical Plan ==
Execute DescribeTableCommand
+- DescribeTableCommand `t`, true
```
## How was this patch tested?
Added new tests in SQLQueryTestSuite.
Closes#24427 from dilipbiswal/describe_table_explain2.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Otherwise, tests that use tables from multiple sessions will run into issues if they access the same table. The correct location is in shared state.
A couple other minor test improvements.
cc gatorsmile srinathshankar
## How was this patch tested?
Existing unit tests.
Closes#24302 from ericl/test-conflicts.
Lead-authored-by: Eric Liang <ekl@databricks.com>
Co-authored-by: Eric Liang <ekhliang@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to parse strings to timestamps in microsecond precision by the ` to_timestamp()` function if the specified pattern contains a sub-pattern for seconds fractions.
Closes#24342
## How was this patch tested?
By `DateFunctionsSuite` and `DateExpressionsSuite`
Closes#24420 from MaxGekk/to_timestamp-microseconds3.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Added tests to check migration from `INT96` to `TIMESTAMP_MICROS` (`INT64`) for timestamps in parquet files. In particular:
- Append `TIMESTAMP_MICROS` timestamps to **existing parquet** files with `INT96` timestamps
- Append `TIMESTAMP_MICROS` timestamps to a table with `INT96` timestamps
- Append `INT96` to `TIMESTAMP_MICROS` timestamps in **parquet files**
- Append `INT96` to `TIMESTAMP_MICROS` timestamps in a **table**
Closes#24417 from MaxGekk/parquet-timestamp-int64-tests.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
Currently running explain on describe query gives a little confusing output. This is a minor pr that improves the output of explain.
Before
```
1.EXPLAIN DESCRIBE WITH s AS (SELECT 'hello' as col1) SELECT * FROM s;
== Physical Plan ==
Execute DescribeQueryCommand
+- DescribeQueryCommand CTE [s]
2.EXPLAIN EXTENDED DESCRIBE SELECT * from s1 where c1 > 0;
== Physical Plan ==
Execute DescribeQueryCommand
+- DescribeQueryCommand 'Project [*]
```
After
```
1. EXPLAIN DESCRIBE WITH s AS (SELECT 'hello' as col1) SELECT * FROM s;
== Physical Plan ==
Execute DescribeQueryCommand
+- DescribeQueryCommand WITH s AS (SELECT 'hello' as col1) SELECT * FROM s
2. EXPLAIN DESCRIBE SELECT * from s1 where c1 > 0;
== Physical Plan ==
Execute DescribeQueryCommand
+- DescribeQueryCommand SELECT * from s1 where c1 > 0
```
Added a couple of tests in describe-query.sql under SQLQueryTestSuite.
Closes#24385 from dilipbiswal/describe_query_explain.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Support 4 kinds of filters:
- LessThan
- LessThanOrEqual
- GreatThan
- GreatThanOrEqual
Support filters applied on 2 columns:
- modificationTime
- length
Note:
In order to support datasource filter push-down, I flatten schema to be:
```
val schema = StructType(
StructField("path", StringType, false) ::
StructField("modificationTime", TimestampType, false) ::
StructField("length", LongType, false) ::
StructField("content", BinaryType, true) :: Nil)
```
## How was this patch tested?
To be added.
Please review http://spark.apache.org/contributing.html before opening a pull request.
Closes#24387 from WeichenXu123/binary_ds_filter.
Lead-authored-by: WeichenXu <weichen.xu@databricks.com>
Co-authored-by: Xiangrui Meng <meng@databricks.com>
Signed-off-by: Xiangrui Meng <meng@databricks.com>
## What changes were proposed in this pull request?
Because a review is resolved during analysis when we create a dataset, the content of the view is determined when the dataset is created, not when it is evaluated. Now the explain result of a dataset is not correctly consistent with the collected result of it, because we use pre-analyzed logical plan of the dataset in explain command. The explain command will analyzed the logical plan passed in. So if a view is changed after the dataset was created, the plans shown by explain command aren't the same with the plan of the dataset.
```scala
scala> spark.range(10).createOrReplaceTempView("test")
scala> spark.range(5).createOrReplaceTempView("test2")
scala> spark.sql("select * from test").createOrReplaceTempView("tmp001")
scala> val df = spark.sql("select * from tmp001")
scala> spark.sql("select * from test2").createOrReplaceTempView("tmp001")
scala> df.show
+---+
| id|
+---+
| 0|
| 1|
| 2|
| 3|
| 4|
| 5|
| 6|
| 7|
| 8|
| 9|
+---+
scala> df.explain
```
Before:
```scala
== Physical Plan ==
*(1) Range (0, 5, step=1, splits=12)
```
After:
```scala
== Physical Plan ==
*(1) Range (0, 10, step=1, splits=12)
```
## How was this patch tested?
Manually test and unit test.
Closes#24415 from viirya/SPARK-27439.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
In the PR, I propose more precise description of `TimestampType` and `DateType`, how they store timestamps and dates internally.
Closes#24424 from MaxGekk/timestamp-date-type-doc.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
In file source V1, if some file is deleted manually, reading the DataFrame/Table will throws an exception with suggestion message
```
It is possible the underlying files have been updated. You can explicitly invalidate the cache in Spark by running 'REFRESH TABLE tableName' command in SQL or by recreating the Dataset/DataFrame involved.
```
After refreshing the table/DataFrame, the reads should return correct results.
We should follow it in file source V2 as well.
## How was this patch tested?
Unit test
Closes#24401 from gengliangwang/refreshFileTable.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
A previous change moved the removal of empty window expressions to the RemoveNoopOperations rule, which comes after the CollapseWindow rule. Therefore, by the time we get to CollapseWindow, we aren't guaranteed that empty windows have been removed. This change checks that the window expressions are not empty, and only collapses the windows if both windows are non-empty.
A lengthier description and repro steps here: https://issues.apache.org/jira/browse/SPARK-27514
## How was this patch tested?
A unit test, plus I reran the breaking case mentioned in the Jira ticket.
Closes#24411 from yifeih/yh/spark-27514.
Authored-by: Yifei Huang <yifeih@palantir.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR add test for [HIVE-13083](https://issues.apache.org/jira/browse/HIVE-13083): Writing HiveDecimal to ORC can wrongly suppress present stream.
## How was this patch tested?
manual tests:
```
build/sbt "hive/testOnly *HiveOrcQuerySuite" -Phive -Phadoop-3.2
```
Closes#24397 from wangyum/SPARK-26437.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
The test time of `HiveClientVersions` is around 3.5 minutes.
This PR is to add it into the parallel test suite list. To make sure there is no colliding warehouse location, we can change the warehouse path to a temporary directory.
## How was this patch tested?
Unit test
Closes#24404 from gengliangwang/parallelTestFollowUp.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
We added nested schema pruning support to Orc V2 recently. The benchmark result should be updated. The benchmark numbers are obtained by running benchmark on r3.xlarge machine.
## How was this patch tested?
Test only change.
Closes#24399 from viirya/update-orcv2-benchmark.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
This patch modifies SparkBuild so that the largest / slowest test suites (or collections of suites) can run in their own forked JVMs, allowing them to be run in parallel with each other. This opt-in / whitelisting approach allows us to increase parallelism without having to fix a long-tail of flakiness / brittleness issues in tests which aren't performance bottlenecks.
See comments in SparkBuild.scala for information on the details, including a summary of why we sometimes opt to run entire groups of tests in a single forked JVM .
The time of full new pull request test in Jenkins is reduced by around 53%:
before changes: 4hr 40min
after changes: 2hr 13min
## How was this patch tested?
Unit test
Closes#24373 from gengliangwang/parallelTest.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Currently, a `Dateset` with file source V2 always return empty results for method `Dataset.inputFiles()`.
We should fix it.
## How was this patch tested?
Unit test
Closes#24393 from gengliangwang/inputFiles.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
https://github.com/apache/spark/pull/24332 introduced an unnecessary `import` statement and two slight issues in the codegen templates in `Cast` for `Date` <-> `Timestamp`.
This PR removes the unused import statement and fixes the slight codegen issue.
The issue in those two codegen templates is this pattern:
```scala
val zid = JavaCode.global(
ctx.addReferenceObj("zoneId", zoneId, "java.time.ZoneId"),
zoneId.getClass)
```
`zoneId` can refer to an instance of a non-public class, e.g. `java.time.ZoneRegion`, and while this code correctly puts in the 3rd argument to `ctx.addReferenceObj()`, it's still passing `zoneId.getClass` to `JavaCode.global()` which is not desirable, but doesn't cause any immediate bugs in this particular case, because `zid` is used in an expression immediately afterwards.
If this `zid` ever needs to spill to any explicitly typed variables, e.g. a local variable, and if the spill handling uses the `javaType` on this `GlobalVariable`, it'd generate code that looks like:
```java
java.time.ZoneRegion value1 = ((java.time.ZoneId) references[2] /* literal */);
```
which would then be a real bug:
- a non-accessible type `java.time.ZoneRegion` is referenced in the generated code, and
- `ZoneId` -> `ZoneRegion` requires an explicit downcast.
## How was this patch tested?
Existing tests. This PR does not change behavior, and the original PR won't cause any real behavior bug to begin with.
Closes#24392 from rednaxelafx/spark-27423-followup.
Authored-by: Kris Mok <kris.mok@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR adds support for pushing down LeftSemi and LeftAnti joins below the Join operator.
This is a prerequisite work thats needed for the subsequent task of moving the subquery rewrites to the beginning of optimization phase.
The larger PR is [here](https://github.com/apache/spark/pull/23211) . This PR addresses the comment at [link](https://github.com/apache/spark/pull/23211#issuecomment-445705922).
## How was this patch tested?
Added tests under LeftSemiAntiJoinPushDownSuite.
Closes#24331 from dilipbiswal/SPARK-19712-pushleftsemi-belowjoin.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
A followup of https://github.com/apache/spark/pull/24164
broadcast hint should be respected for broadcast nested loop join. This PR also refactors the related code a little bit, to save duplicated code.
## How was this patch tested?
new tests
Closes#24376 from cloud-fan/join.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Finish the rest work of https://github.com/apache/spark/pull/24317, https://github.com/apache/spark/pull/9030
a. Implement Kryo serialization for UnsafeArrayData
b. fix UnsafeMapData Java/Kryo Serialization issue when two machines have different Oops size
c. Move the duplicate code "getBytes()" to Utils.
## How was this patch tested?
According Units has been added & tested
Closes#24357 from pengbo/SPARK-27416_new.
Authored-by: pengbo <bo.peng1019@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Implement binary file data source in Spark.
Format name: "binaryFile" (case-insensitive)
Schema:
- content: BinaryType
- status: StructType
- path: StringType
- modificationTime: TimestampType
- length: LongType
Options:
* pathGlobFilter (instead of pathFilterRegex) to reply on GlobFilter behavior
* maxBytesPerPartition is not implemented since it is controlled by two SQL confs: maxPartitionBytes and openCostInBytes.
## How was this patch tested?
Unit test added.
Please review http://spark.apache.org/contributing.html before opening a pull request.
Closes#24354 from WeichenXu123/binary_file_datasource.
Lead-authored-by: WeichenXu <weichen.xu@databricks.com>
Co-authored-by: Xiangrui Meng <meng@databricks.com>
Signed-off-by: Xiangrui Meng <meng@databricks.com>
## What changes were proposed in this pull request?
Pass partitionBy columns as options and feature-flag this behavior.
## How was this patch tested?
A new unit test.
Closes#24365 from liwensun/partitionby.
Authored-by: liwensun <liwen.sun@databricks.com>
Signed-off-by: Tathagata Das <tathagata.das1565@gmail.com>
## What changes were proposed in this pull request?
In SchemaPruning rule, there is duplicate code for data source v1 and v2. Their logic is the same and we can refactor the rule to remove duplicate code.
## How was this patch tested?
Existing tests.
Closes#24383 from viirya/SPARK-27476.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Added Constant instead of referring the same String literal "spark.buffer.pageSize" from many places
## How was this patch tested?
Run the corresponding Unit Test Cases manually.
Closes#24368 from shivusondur/Constant.
Authored-by: shivusondur <shivusondur@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In the rule `PreprocessTableCreation`, if an existing table is appended with a different provider, the action will fail.
Currently, there are two implementations for file sources and creating a table with file source V2 will always fall back to V1 FileFormat. We should consider the following cases as valid:
1. Appending a table with file source V2 provider using the v1 file format
2. Appending a table with v1 file format provider using file source V2 format
## How was this patch tested?
Unit test
Closes#24356 from gengliangwang/fixTableProvider.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
The upper bound of group-by columns row number is to multiply distinct counts of group-by columns. However, column with only null value will cause the output row number to be 0 which is incorrect.
Ex:
col1 (distinct: 2, rowCount 2)
col2 (distinct: 0, rowCount 2)
=> group by col1, col2
Actual: output rows: 0
Expected: output rows: 2
## How was this patch tested?
According unit test has been added, plus manual test has been done in our tpcds benchmark environement.
Closes#24286 from pengbo/master.
Lead-authored-by: pengbo <bo.peng1019@gmail.com>
Co-authored-by: mingbo_pb <mingbo.pb@alibaba-inc.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
This is a minor pr to add a test to describe a multi select query.
## How was this patch tested?
Added a test in describe-query.sql
Closes#24370 from dilipbiswal/describe-query-multiselect-test.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR moves the checks done in `WholeStageCodegen.limitNotReachedCond` into a separate protected method. This makes it easier to introduce new leaf or blocking nodes.
## How was this patch tested?
Existing tests.
Closes#24358 from hvanhovell/SPARK-27449.
Authored-by: herman <herman@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This is a regression caused by https://github.com/apache/spark/pull/24150
`select * from (from a select * select *)` is supported in 2.4, and we should keep supporting it.
This PR merges the parser rule for single and multi select statements, as they are very similar.
## How was this patch tested?
a new test case
Closes#24348 from cloud-fan/parser.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Currently, if we select the UDF `input_file_name` as a column in file source V2, the results are empty.
We should support it in file source V2.
## How was this patch tested?
Unit test
Closes#24347 from gengliangwang/input_file_name.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
SPARK-27199 introduced the use of `ZoneId` instead of `TimeZone` in a few date/time expressions.
There were 3 occurrences of `ctx.addReferenceObj("zoneId", zoneId)` in that PR, which had a bug because while the `java.time.ZoneId` base type is public, the actual concrete implementation classes are not public, so using the 2-arg version of `CodegenContext.addReferenceObj` would incorrectly generate code that reference non-public types (`java.time.ZoneRegion`, to be specific). The 3-arg version should be used, with the class name of the referenced object explicitly specified to the public base type.
One of such occurrences was caught in testing in the main PR of SPARK-27199 (https://github.com/apache/spark/pull/24141), for `DateFormatClass`. But the other 2 occurrences slipped through because there were no test cases that covered them.
Example of this bug in the current Apache Spark master, in a Spark Shell:
```
scala> Seq(("2016-04-08", "yyyy-MM-dd")).toDF("s", "f").repartition(1).selectExpr("to_unix_timestamp(s, f)").show
...
java.lang.IllegalAccessError: tried to access class java.time.ZoneRegion from class org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIteratorForCodegenStage1
```
This PR fixes the codegen issues and adds the corresponding unit tests.
## How was this patch tested?
Enhanced tests in `DateExpressionsSuite` for `to_unix_timestamp` and `from_unixtime`.
Closes#24352 from rednaxelafx/fix-spark-27199.
Authored-by: Kris Mok <kris.mok@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
While using vi or vim to edit the test files the .swp or .swo files are created and attempt to run the test suite in the presence of these files causes errors like below :
```
nfo] - subquery/exists-subquery/.exists-basic.sql.swp *** FAILED *** (117 milliseconds)
[info] java.io.FileNotFoundException: /Users/dbiswal/mygit/apache/spark/sql/core/target/scala-2.12/test-classes/sql-tests/results/subquery/exists-subquery/.exists-basic.sql.swp.out (No such file or directory)
[info] at java.io.FileInputStream.open0(Native Method)
[info] at java.io.FileInputStream.open(FileInputStream.java:195)
[info] at java.io.FileInputStream.<init>(FileInputStream.java:138)
[info] at org.apache.spark.sql.catalyst.util.package$.fileToString(package.scala:49)
[info] at org.apache.spark.sql.SQLQueryTestSuite.runQueries(SQLQueryTestSuite.scala:247)
[info] at org.apache.spark.sql.SQLQueryTestSuite.$anonfun$runTest$11(SQLQueryTestSuite.scala:192)
```
~~This minor pr adds these temp files in the ignore list.~~
While computing the list of test files to process, only consider files with `.sql` extension. This makes sure the unwanted temp files created from various editors are ignored from processing.
## How was this patch tested?
Verified manually.
Closes#24333 from dilipbiswal/dkb_sqlquerytest.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Fix build warnings -- see some details below.
But mostly, remove use of postfix syntax where it causes warnings without the `scala.language.postfixOps` import. This is mostly in expressions like "120000 milliseconds". Which, I'd like to simplify to things like "2.minutes" anyway.
## How was this patch tested?
Existing tests.
Closes#24314 from srowen/SPARK-27404.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This PR extends the existing BROADCAST join hint (for both broadcast-hash join and broadcast-nested-loop join) by implementing other join strategy hints corresponding to the rest of Spark's existing join strategies: shuffle-hash, sort-merge, cartesian-product. The hint names: SHUFFLE_MERGE, SHUFFLE_HASH, SHUFFLE_REPLICATE_NL are partly different from the code names in order to make them clearer to users and reflect the actual algorithms better.
The hinted strategy will be used for the join with which it is associated if it is applicable/doable.
Conflict resolving rules in case of multiple hints:
1. Conflicts within either side of the join: take the first strategy hint specified in the query, or the top hint node in Dataset. For example, in "select /*+ merge(t1) */ /*+ broadcast(t1) */ k1, v2 from t1 join t2 on t1.k1 = t2.k2", take "merge(t1)"; in ```df1.hint("merge").hint("shuffle_hash").join(df2)```, take "shuffle_hash". This is a general hint conflict resolving strategy, not specific to join strategy hint.
2. Conflicts between two sides of the join:
a) In case of different strategy hints, hints are prioritized as ```BROADCAST``` over ```SHUFFLE_MERGE``` over ```SHUFFLE_HASH``` over ```SHUFFLE_REPLICATE_NL```.
b) In case of same strategy hints but conflicts in build side, choose the build side based on join type and size.
## How was this patch tested?
Added new UTs.
Closes#24164 from maryannxue/join-hints.
Lead-authored-by: maryannxue <maryannxue@apache.org>
Co-authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
System shall update the table stats automatically if user set spark.sql.statistics.size.autoUpdate.enabled as true, currently this property is not having any significance even if it is enabled or disabled. This feature is similar to Hives auto-gather feature where statistics are automatically computed by default if this feature is enabled.
Reference:
https://cwiki.apache.org/confluence/display/Hive/StatsDev
As part of fix , autoSizeUpdateEnabled validation is been done initially so that system will calculate the table size for the user automatically and record it in metastore as per user expectation.
## How was this patch tested?
UT is written and manually verified in cluster.
Tested with unit tests + some internal tests on real cluster.
Before fix:
After fix
Closes#24315 from sujith71955/master_autoupdate.
Authored-by: s71955 <sujithchacko.2010@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Currently, the optimization rule `SchemaPruning` only works for Parquet/Orc V1.
We should have the same optimization in ORC V2.
## How was this patch tested?
Unit test
Closes#24338 from gengliangwang/schemaPruningForV2.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Similar to #22406 , which has made log level for plan changes by each rule configurable ,this PR is to make log level for plan changes by each batch configurable,and I have reused the same configuration: "spark.sql.optimizer.planChangeLog.level".
Config proposed in this PR ,
spark.sql.optimizer.planChangeLog.batches - enable plan change logging only for a set of specified batches, separated by commas.
## How was this patch tested?
Added UT , also tested manually and attached screenshots below.
1)Setting spark.sql.optimizer.planChangeLog.leve to warn.
2)setting spark.sql.optimizer.planChangeLog.batches to Resolution and Subquery.
3) plan change logging enabled only for a set of specified batches(Resolution and Subquery)
Closes#24136 from chakravarthiT/logBatches.
Lead-authored-by: chakravarthiT <45845595+chakravarthiT@users.noreply.github.com>
Co-authored-by: chakravarthiT <tcchakra@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
Necessarily access the external catalog without having to do it
## What changes were proposed in this pull request?
The existsFunction function has been changed because it unnecessarily accessed the externalCatalog to find if the database exists in cases where the function is in the functionRegistry
## How was this patch tested?
It has been tested through spark-shell and accessing the metastore logs of hive.
Inside spark-shell we use spark.table (% tableA%). SelectExpr ("trim (% columnA%)") in the current version and it appears every time:
org.apache.hadoop.hive.metastore.HiveMetaStore.audit: cmd = get_database: default
Once the change is made, no record appears
Closes#24312 from OCaballero/master.
Authored-by: ocaballero <oliver.caballero.alvarez@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
According to SQL standard, value of `DATE` type is union of year, month, dayInMonth, and it is independent from any time zones. To convert it to Catalyst's `TIMESTAMP`, `DATE` value should be "extended" by the time at midnight - `00:00:00`. The resulted local date+time should be considered as a timestamp in the session time zone, and casted to microseconds since epoch in `UTC` accordingly.
The reverse casting from `TIMESTAMP` to `DATE` should be performed in the similar way. `TIMESTAMP` values should be represented as a local date+time in the session time zone. And the time component should be just removed. For example, `TIMESTAMP 2019-04-10 00:10:12` -> `DATE 2019-04-10`. The resulted date is converted to days since epoch `1970-01-01`.
## How was this patch tested?
The changes were tested by existing test suites - `DateFunctionsSuite`, `DateExpressionsSuite` and `CastSuite`.
Closes#24332 from MaxGekk/cast-timestamp-to-date2.
Lead-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to revert 2 commits 06abd06112 and 61561c1c2d, and take current date via `LocalDate.now` in the session time zone. The result is stored as days since epoch `1970-01-01`.
## How was this patch tested?
It was tested by `DateExpressionsSuite`, `DateFunctionsSuite`, `DateTimeUtilsSuite`, and `ComputeCurrentTimeSuite`.
Closes#24330 from MaxGekk/current-date2.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
Dynamic partition will fail when both '' and null values are taken as dynamic partition values simultaneously.
For example, the test bellow will fail before this PR:
test("Null and '' values should not cause dynamic partition failure of string types") {
withTable("t1", "t2") {
spark.range(3).write.saveAsTable("t1")
spark.sql("select id, cast(case when id = 1 then '' else null end as string) as p" +
" from t1").write.partitionBy("p").saveAsTable("t2")
checkAnswer(spark.table("t2").sort("id"), Seq(Row(0, null), Row(1, null), Row(2, null)))
}
}
The error is: 'org.apache.hadoop.fs.FileAlreadyExistsException: File already exists'.
This PR convert the empty strings to null for partition values.
This is another way for PR(https://github.com/apache/spark/pull/23010)
(Please fill in changes proposed in this fix)
How was this patch tested?
New added test.
Closes#24334 from eatoncys/FileFormatWriter.
Authored-by: 10129659 <chen.yanshan@zte.com.cn>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
For BinaryOperator's toString method, it's better to use `$sqlOperator` instead of `$symbol`.
## How was this patch tested?
We can test this patch with unit tests.
Please review http://spark.apache.org/contributing.html before opening a pull request.
Closes#21826 from httfighter/SPARK-24872.
Authored-by: 韩田田00222924 <han.tiantian@zte.com.cn>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In SQL standard, date type is a union of the `year`, `month` and `day` fields. It's timezone independent, which means it does not represent a specific point in the timeline.
Spark SQL follows the SQL standard, this PR is to make it clear that date type is timezone independent
1. improve the doc to highlight that date is timezone independent.
2. when converting string to date, uses the java time API that can directly parse a `LocalDate` from a string, instead of converting `LocalDate` to a `Instant` at UTC first.
3. when converting date to string, uses the java time API that can directly format a `LocalDate` to a string, instead of converting `LocalDate` to a `Instant` at UTC first.
2 and 3 should not introduce any behavior changes.
## How was this patch tested?
existing tests
Closes#24325 from cloud-fan/doc.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This adds a public Expression API that can be used to pass partition transformations to data sources.
## How was this patch tested?
Existing tests to validate no regressions. Added transform cases to DDL suite and v1 conversions suite.
Closes#24117 from rdblue/add-public-transform-api.
Authored-by: Ryan Blue <blue@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
The PR #24189 changes the behavior of merging SparkConf. The existing doc is not updated for it. This is a followup of it to update the doc.
## How was this patch tested?
Doc only change.
Closes#24326 from viirya/SPARK-27253-followup.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
In the PR, I propose simpler implementation of `toJavaTimestamp()`/`fromJavaTimestamp()` by reusing existing functions of `DateTimeUtils`. This will allow to:
- Simply implementation of `toJavaTimestamp()`, and handle properly negative inputs.
- Detect `Long` overflow in conversion of milliseconds (`java.sql.Timestamp`) to microseconds (Catalyst's Timestamp).
## How was this patch tested?
By existing test suites `DateTimeUtilsSuite`, `DateFunctionsSuite`, `DateExpressionsSuite` and `CastSuite`. And by new benchmark for export/import timestamps added to `DateTimeBenchmark`:
Before:
```
To/from java.sql.Timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
From java.sql.Timestamp 290 335 49 17.2 58.0 1.0X
Collect longs 1234 1681 487 4.1 246.8 0.2X
Collect timestamps 1718 1755 63 2.9 343.7 0.2X
```
After:
```
To/from java.sql.Timestamp: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
From java.sql.Timestamp 283 301 19 17.7 56.6 1.0X
Collect longs 1048 1087 36 4.8 209.6 0.3X
Collect timestamps 1425 1479 56 3.5 285.1 0.2X
```
Closes#24311 from MaxGekk/conv-java-sql-date-timestamp.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
File source V2 currently incorrectly continues to use cached data even if the underlying data is overwritten.
We should follow https://github.com/apache/spark/pull/13566 and fix it by invalidating and refreshes all the cached data (and the associated metadata) for any Dataframe that contains the given data source path.
## How was this patch tested?
Unit test
Closes#24318 from gengliangwang/invalidCache.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
In DataSourceV2Strategy, it seems we eliminate the subqueries by mistake after normalizing filters.
We have a sql with a scalar subquery:
``` scala
val plan = spark.sql("select * from t2 where t2a > (select max(t1a) from t1)")
plan.explain(true)
```
And we get the log info of DataSourceV2Strategy:
```
Pushing operators to csv:examples/src/main/resources/t2.txt
Pushed Filters:
Post-Scan Filters: isnotnull(t2a#30)
Output: t2a#30, t2b#31
```
The `Post-Scan Filters` should contain the scalar subquery, but we eliminate it by mistake.
```
== Parsed Logical Plan ==
'Project [*]
+- 'Filter ('t2a > scalar-subquery#56 [])
: +- 'Project [unresolvedalias('max('t1a), None)]
: +- 'UnresolvedRelation `t1`
+- 'UnresolvedRelation `t2`
== Analyzed Logical Plan ==
t2a: string, t2b: string
Project [t2a#30, t2b#31]
+- Filter (t2a#30 > scalar-subquery#56 [])
: +- Aggregate [max(t1a#13) AS max(t1a)#63]
: +- SubqueryAlias `t1`
: +- RelationV2[t1a#13, t1b#14] csv:examples/src/main/resources/t1.txt
+- SubqueryAlias `t2`
+- RelationV2[t2a#30, t2b#31] csv:examples/src/main/resources/t2.txt
== Optimized Logical Plan ==
Filter (isnotnull(t2a#30) && (t2a#30 > scalar-subquery#56 []))
: +- Aggregate [max(t1a#13) AS max(t1a)#63]
: +- Project [t1a#13]
: +- RelationV2[t1a#13, t1b#14] csv:examples/src/main/resources/t1.txt
+- RelationV2[t2a#30, t2b#31] csv:examples/src/main/resources/t2.txt
== Physical Plan ==
*(1) Project [t2a#30, t2b#31]
+- *(1) Filter isnotnull(t2a#30)
+- *(1) BatchScan[t2a#30, t2b#31] class org.apache.spark.sql.execution.datasources.v2.csv.CSVScan
```
## How was this patch tested?
ut
Closes#24321 from francis0407/SPARK-27411.
Authored-by: francis0407 <hanmingcong123@hotmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
ApproxCountDistinctForIntervals holds the UnsafeArrayData data to initialize endpoints. When the UnsafeArrayData is serialized with Java serialization, the BYTE_ARRAY_OFFSET in memory can change if two machines have different pointer width (Oops in JVM).
This PR fixes this issue by using the same way in https://github.com/apache/spark/pull/9030
## How was this patch tested?
Manual test has been done in our tpcds environment and regarding unit test case has been added as well
Closes#24317 from pengbo/SPARK-27406.
Authored-by: mingbo_pb <mingbo.pb@alibaba-inc.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR proposes to two things:
1. Add `deprecated` field to `ExpressionDescription` so that it can be shown in our SQL function documentation (https://spark.apache.org/docs/latest/api/sql/), and it can be shown via `DESCRIBE FUNCTION EXTENDED`.
2. While I am here, add some more restrictions for `note()` and `since()`. Looks some documentations are broken due to malformed `note`:
It should start with 4 spaces and end with a newline. I added some asserts, and fixed the instances together while I am here. This is technically a breaking change but I think it's too trivial to note somewhere (and we're in Spark 3.0.0).
This PR adds `deprecated` property into `from_utc_timestamp` and `to_utc_timestamp` (it's deprecated as of #24195) as examples of using this field.
Now it shows the deprecation information as below:
- **SQL documentation is shown as below:**
- **`DESCRIBE FUNCTION EXTENDED from_utc_timestamp;`**:
```
Function: from_utc_timestamp
Class: org.apache.spark.sql.catalyst.expressions.FromUTCTimestamp
Usage: from_utc_timestamp(timestamp, timezone) - Given a timestamp like '2017-07-14 02:40:00.0', interprets it as a time in UTC, and renders that time as a timestamp in the given time zone. For example, 'GMT+1' would yield '2017-07-14 03:40:00.0'.
Extended Usage:
Examples:
> SELECT from_utc_timestamp('2016-08-31', 'Asia/Seoul');
2016-08-31 09:00:00
Since: 1.5.0
Deprecated:
Deprecated since 3.0.0. See SPARK-25496.
```
## How was this patch tested?
Manually tested via:
- For documentation verification:
```
$ cd sql
$ sh create-docs.sh
```
- For checking description:
```
$ ./bin/spark-sql
```
```
spark-sql> DESCRIBE FUNCTION EXTENDED from_utc_timestamp;
spark-sql> DESCRIBE FUNCTION EXTENDED to_utc_timestamp;
```
Closes#24259 from HyukjinKwon/SPARK-27328.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
in https://github.com/apache/spark/pull/24195 , we deprecate `from/to_utc_timestamp`.
This PR removes unnecessary use of `to_utc_timestamp` in the test.
## How was this patch tested?
test only PR
Closes#24319 from cloud-fan/minor.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Migrate Text source to File Data Source V2
## How was this patch tested?
Unit test
Closes#24207 from gengliangwang/textV2.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
In the PR, I propose to restrict the range of random timestamp literals generated in `LiteralGenerator. timestampLiteralGen`. The generator creates instances of `java.sql.Timestamp` by passing milliseconds since epoch as `Long` type. Converting the milliseconds to microseconds can cause arithmetic overflow of Long type because Catalyst's Timestamp type stores microseconds since epoch in `Long` type internally as well. Proposed interval of random milliseconds is `[Long.MinValue / 1000, Long.MaxValue / 1000]`.
For example, generated timestamp `new java.sql.Timestamp(-3948373668011580000)` causes `Long` overflow at the method:
```scala
def fromJavaTimestamp(t: Timestamp): SQLTimestamp = {
...
MILLISECONDS.toMicros(t.getTime()) + NANOSECONDS.toMicros(t.getNanos()) % NANOS_PER_MICROS
...
}
```
because `t.getTime()` returns `-3948373668011580000` which is multiplied by `1000` at `MILLISECONDS.toMicros`, and the result `-3948373668011580000000` is less than `Long.MinValue`.
## How was this patch tested?
By `DateExpressionsSuite` in the PR https://github.com/apache/spark/pull/24311Closes#24316 from MaxGekk/random-timestamps-gen.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
This PR mainly contains:
1. Upgrade hadoop-3's built-in Hive maven dependencies to 2.3.4.
2. Resolve compatibility issues between Hive 1.2.1 and Hive 2.3.4 in the `sql/hive` module.
## How was this patch tested?
jenkins test hadoop-2.7
manual test hadoop-3:
```shell
build/sbt clean package -Phadoop-3.2 -Phive
export SPARK_PREPEND_CLASSES=true
# rm -rf metastore_db
cat <<EOF > test_hadoop3.scala
spark.range(10).write.saveAsTable("test_hadoop3")
spark.table("test_hadoop3").show
EOF
bin/spark-shell --conf spark.hadoop.hive.metastore.schema.verification=false --conf spark.hadoop.datanucleus.schema.autoCreateAll=true -i test_hadoop3.scala
```
Closes#23788 from wangyum/SPARK-23710-hadoop3.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
As part of schema clipping in `ParquetReadSupport.scala`, we add fields in the Catalyst requested schema which are missing from the Parquet file schema to the Parquet clipped schema. However, nested schema pruning requires we ignore unrequested field data when reading from a Parquet file. Therefore we pass two schema to `ParquetRecordMaterializer`: the schema of the file data we want to read and the schema of the rows we want to return. The reader is responsible for reconciling the differences between the two.
Aside from checking whether schema pruning is enabled, there is an additional complication to constructing the Parquet requested schema. The manner in which Spark's two Parquet readers reconcile the differences between the Parquet requested schema and the Catalyst requested schema differ. Spark's vectorized reader does not (currently) support reading Parquet files with complex types in their schema. Further, it assumes that the Parquet requested schema includes all fields requested in the Catalyst requested schema. It includes logic in its read path to skip fields in the Parquet requested schema which are not present in the file.
Spark's parquet-mr based reader supports reading Parquet files of any kind of complex schema, and it supports nested schema pruning as well. Unlike the vectorized reader, the parquet-mr reader requires that the Parquet requested schema include only those fields present in the underlying Parquet file's schema. Therefore, in the case where we use the parquet-mr reader we intersect the Parquet clipped schema with the Parquet file's schema to construct the Parquet requested schema that's set in the `ReadContext`.
_Additional description (by HyukjinKwon):_
Let's suppose that we have a Parquet schema as below:
```
message spark_schema {
required int32 id;
optional group name {
optional binary first (UTF8);
optional binary last (UTF8);
}
optional binary address (UTF8);
}
```
Currently, the clipped schema as follows:
```
message spark_schema {
optional group name {
optional binary middle (UTF8);
}
optional binary address (UTF8);
}
```
Parquet MR does not support access to the nested non-existent field (`name.middle`).
To workaround this, this PR removes `name.middle` request at all to Parquet reader as below:
```
Parquet requested schema:
message spark_schema {
optional binary address (UTF8);
}
```
and produces the record (`name.middle`) properly as the requested Catalyst schema.
```
root
-- name: struct (nullable = true)
|-- middle: string (nullable = true)
-- address: string (nullable = true)
```
I think technically this is what Parquet library should support since Parquet library made a design decision to produce `null` for non-existent fields IIRC. This PR targets to work around it.
## How was this patch tested?
A previously ignored test case which exercises the failure scenario this PR addresses has been enabled.
This closes#22880Closes#24307 from dongjoon-hyun/SPARK-25407.
Lead-authored-by: Michael Allman <msa@allman.ms>
Co-authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
When scanning file sources, we can prune unnecessary partition columns on constructing input partitions, so that:
1. Reduce the data transformation from Driver to Executors
2. Make it easier to implement columnar batch readers, since the partition columns are already pruned.
## How was this patch tested?
Existing unit tests.
Closes#24296 from gengliangwang/prunePartitionValue.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This pr avoid using hard-coded jar names(`hive-contrib-0.13.1.jar` and `hive-hcatalog-core-0.13.1.jar`) in Hive tests. This change makes it easy to change when upgrading the built-in Hive to 2.3.4.
## How was this patch tested?
Existing test
Closes#24294 from wangyum/SPARK-27383.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
The user sets the value of spark.sql.thriftserver.scheduler.pool.
Spark thrift server saves this value in the LocalProperty of threadlocal type, but does not clean up after running, causing other sessions to run in the previously set pool name.
## How was this patch tested?
manual tests
Closes#23895 from cxzl25/thrift_server_scheduler_pool_pollute.
Lead-authored-by: cxzl25 <cxzl25@users.noreply.github.com>
Co-authored-by: sychen <sychen@ctrip.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Fix a potential deadlock in ContinuousExecution by not initializing the toRDD lazy val.
Closes#24301 from jose-torres/deadlock.
Authored-by: Jose Torres <torres.joseph.f+github@gmail.com>
Signed-off-by: Jose Torres <torres.joseph.f+github@gmail.com>
## What changes were proposed in this pull request?
Th environment of my cluster as follows:
```
OS:Linux version 2.6.32-220.7.1.el6.x86_64 (mockbuildc6b18n3.bsys.dev.centos.org) (gcc version 4.4.6 20110731 (Red Hat 4.4.6-3) (GCC) ) #1 SMP Wed Mar 7 00:52:02 GMT 2012
Hadoop: 2.7.2
Spark: 2.3.0 or 3.0.0(master branch)
Hive: 1.2.1
```
My spark run on deploy mode yarn-client.
If I execute the SQL `insert overwrite local directory '/home/test/call_center/' select * from call_center`, a HiveException will appear as follows:
`Caused by: org.apache.hadoop.hive.ql.metadata.HiveException: java.io.IOException: Mkdirs failed to create file:/home/xitong/hive/stagingdir_hive_2019-02-19_17-31-00_678_1816816774691551856-1/-ext-10000/_temporary/0/_temporary/attempt_20190219173233_0002_m_000000_3 (exists=false, cwd=file:/data10/yarn/nm-local-dir/usercache/xitong/appcache/application_1543893582405_6126857/container_e124_1543893582405_6126857_01_000011)
at org.apache.hadoop.hive.ql.io.HiveFileFormatUtils.getHiveRecordWriter(HiveFileFormatUtils.java:249)`
Current spark sql generate a local temporary path in local staging directory.The schema of local temporary path start with `file`, so the HiveException appears.
This PR change the local temporary path to HDFS temporary path, and use DistributedFileSystem instance copy the data from HDFS temporary path to local directory.
If Spark run on local deploy mode, 'insert overwrite local directory' works fine.
## How was this patch tested?
UT cannot support yarn-client mode.The test is in my product environment.
Closes#23841 from beliefer/fix-bug-of-insert-overwrite-local-dir.
Authored-by: gengjiaan <gengjiaan@360.cn>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This PR aims to clean up package name mismatches.
## How was this patch tested?
Pass the Jenkins.
Closes#24300 from dongjoon-hyun/SPARK-27390.
Authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
In the current file source V2 framework, the schema of `FileScan` is not returned correctly if there are overlap columns between `dataSchema` and `partitionSchema`. The actual schema should be
`dataSchema - overlapSchema + partitionSchema`, which might have different column order from the pushed down `requiredSchema` in `SupportsPushDownRequiredColumns.pruneColumns`.
For example, if the data schema is `[a: String, b: String, c: String]` and the partition schema is `[b: Int, d: Int]`, the result schema is `[a: String, b: Int, c: String, d: Int]` in current `FileTable` and `HadoopFsRelation`. while the actual scan schema is `[a: String, c: String, b: Int, d: Int]` in `FileScan`.
To fix the corner case, this PR proposes that the output schema of `FileTable` should be `dataSchema - overlapSchema + partitionSchema`, so that the column order is consistent with `FileScan`.
Putting all the partition columns to the end of table schema is more reasonable.
## How was this patch tested?
Unit test.
Closes#24284 from gengliangwang/FixReadSchema.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
With this change, unnecessary file scans are avoided in case of Limit 0 queries.
I added a case (rule) to `PropagateEmptyRelation` to replace `GlobalLimit 0` and `LocalLimit 0` nodes with an empty `LocalRelation`. This prunes the subtree under the Limit 0 node and further allows other rules of `PropagateEmptyRelation` to optimize the Logical Plan - while remaining semantically consistent with the Limit 0 query.
For instance:
**Query:**
`SELECT * FROM table1 INNER JOIN (SELECT * FROM table2 LIMIT 0) AS table2 ON table1.id = table2.id`
**Optimized Plan without fix:**
```
Join Inner, (id#79 = id#87)
:- Filter isnotnull(id#79)
: +- Relation[id#79,num1#80] parquet
+- Filter isnotnull(id#87)
+- GlobalLimit 0
+- LocalLimit 0
+- Relation[id#87,num2#88] parquet
```
**Optimized Plan with fix:**
`LocalRelation <empty>, [id#75, num1#76, id#77, num2#78]`
## How was this patch tested?
Added unit tests to verify Limit 0 optimization for:
- Simple query containing Limit 0
- Inner Join, Left Outer Join, Right Outer Join, Full Outer Join queries containing Limit 0 as one of their children
- Nested Inner Joins between 3 tables with one of them having a Limit 0 clause.
- Intersect query wherein one of the subqueries was a Limit 0 query.
Closes#24271 from aayushmaanjain/optimize-limit0.
Authored-by: Aayushmaan Jain <aayushmaan.jain42@gmail.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
In the case where the offending symbol is a CommonToken, this PR increases the accuracy of the start and stop origin by leveraging the start and stop index information from CommonToken.
Closes#21334 from rubenfiszel/patch-1.
Lead-authored-by: Ruben Fiszel <rubenfiszel@gmail.com>
Co-authored-by: rubenfiszel <rfiszel@palantir.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Since Apache Spark 2.4.1 vote passed and is distributed into mirrors, we need to test 2.4.1. This should land on both `master` and `branch-2.4`.
## How was this patch tested?
Pass the Jenkins.
Closes#24292 from dongjoon-hyun/SPARK-27382.
Authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
`hive.stats.jdbc.timeout` and `hive.stats.retries.wait` were removed by [HIVE-12164](https://issues.apache.org/jira/browse/HIVE-12164).
This pr to deal with this change.
## How was this patch tested?
unit tests
Closes#24277 from wangyum/SPARK-27349.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
It's a followup of https://github.com/apache/spark/pull/24012 , to fix 2 documentation:
1. `SupportsRead` and `SupportsWrite` are not internal anymore. They are public interfaces now.
2. `Scan` should link the `BATCH_READ` instead of hardcoding it.
## How was this patch tested?
N/A
Closes#24285 from cloud-fan/doc.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
abstract some common code into a method.
## How was this patch tested?
existing tests
Closes#24281 from cloud-fan/minor.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
According to current status, `orc` is available even Hive support isn't enabled. This is a minor doc change to reflect it.
## How was this patch tested?
Doc only change.
Closes#24280 from viirya/fix-orc-doc.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
- Added new test for Java Bean encoder of the classes: `java.time.LocalDate` and `java.time.Instant`.
- Updated comment for `Encoders.bean`
- New Row getters: `getLocalDate` and `getInstant`
- Extended `inferDataType` to infer types for `java.time.LocalDate` -> `DateType` and `java.time.Instant` -> `TimestampType`.
## How was this patch tested?
By `JavaBeanDeserializationSuite`
Closes#24273 from MaxGekk/bean-instant-localdate.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, we raise an AnalysisError when we detect the presense of aggregate expressions in where clause. Here is the problem description from the JIRA.
Aggregate functions should not be allowed in WHERE clause. But Spark SQL throws an exception when generating codes. It is supposed to throw an exception during parsing or analyzing.
Here is an example:
```
val df = spark.sql("select * from t where sum(ta) > 0")
df.explain(true)
df.show()
```
Resulting exception:
```
Exception in thread "main" java.lang.UnsupportedOperationException: Cannot generate code for expression: sum(cast(input[0, int, false] as bigint))
at org.apache.spark.sql.catalyst.expressions.Unevaluable.doGenCode(Expression.scala:291)
at org.apache.spark.sql.catalyst.expressions.Unevaluable.doGenCode$(Expression.scala:290)
at org.apache.spark.sql.catalyst.expressions.aggregate.AggregateExpression.doGenCode(interfaces.scala:87)
at org.apache.spark.sql.catalyst.expressions.Expression.$anonfun$genCode$3(Expression.scala:138)
at scala.Option.getOrElse(Option.scala:138)
```
Checked the behaviour of other database and all of them return an exception:
**Postgress**
```
select * from foo where max(c1) > 0;
Error
ERROR: aggregate functions are not allowed in WHERE Position: 25
```
**DB2**
```
db2 => select * from foo where max(c1) > 0;
SQL0120N Invalid use of an aggregate function or OLAP function.
```
**Oracle**
```
select * from foo where max(c1) > 0;
ORA-00934: group function is not allowed here
```
**MySql**
```
select * from foo where max(c1) > 0;
Invalid use of group function
```
**Update**
This PR has been enhanced to report error when expressions such as Aggregate, Window, Generate are hosted by operators where they are invalid.
## How was this patch tested?
Added tests in AnalysisErrorSuite and group-by.sql
Closes#24209 from dilipbiswal/SPARK-27255.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to deprecate the `from_utc_timestamp()` and `to_utc_timestamp`, and disable them by default. The functions can be enabled back via the SQL config `spark.sql.legacy.utcTimestampFunc.enabled`. By default, any calls of the functions throw an analysis exception.
One of the reason for deprecation is functions violate semantic of `TimestampType` which is number of microseconds since epoch in UTC time zone. Shifting microseconds since epoch by time zone offset doesn't make sense because the result doesn't represent microseconds since epoch in UTC time zone any more, and cannot be considered as `TimestampType`.
## How was this patch tested?
The changes were tested by `DateExpressionsSuite` and `DateFunctionsSuite`.
Closes#24195 from MaxGekk/conv-utc-timestamp-deprecate.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
After [23750](https://github.com/apache/spark/pull/23750), we may pushdown left anti joins below aggregate and window operators with a partial join condition. This is not correct and was pointed out by hvanhovell and cloud-fan [here](https://github.com/apache/spark/pull/23750#discussion_r270017097). This pr addresses their comments.
## How was this patch tested?
Added two new tests to verify the behaviour.
Closes#24253 from dilipbiswal/SPARK-19712-followup.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This is a followup of https://github.com/apache/spark/pull/23285. This PR adds the notes into PySpark and SparkR documentation as well.
While I am here, I revised the doc a bit to make it sound a bit more neutral
## How was this patch tested?
Manually built the doc and verified.
Closes#24272 from HyukjinKwon/SPARK-26224.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
I haven't tested by myself on Windows and I am not 100% sure if this is going to cause an actual problem.
However, this one line:
827383a97c/sql/catalyst/src/main/java/org/apache/spark/sql/catalyst/expressions/ExpressionInfo.java (L82)
made me to investigate a lot today.
Given my speculation, if Spark is built in Linux and it's executed on Windows, it looks possible for multiline strings, like,
5264164a67/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/mathExpressions.scala (L146-L150)
to throw an exception because the newline in the binary is `\n` but `System.lineSeparator` returns `\r\n`.
I think this is not yet found because this particular codes are not released yet (see SPARK-26426).
Looks just better to loosen the condition and forget about this stuff.
This should be backported into branch-2.4 as well.
## How was this patch tested?
N/A
Closes#24274 from HyukjinKwon/SPARK-27346.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Use Single Abstract Method syntax where possible (and minor related cleanup). Comments below. No logic should change here.
## How was this patch tested?
Existing tests.
Closes#24241 from srowen/SPARK-27323.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
We have seen many cases when users make several subsequent calls to `withColumn` on a Dataset. This leads now to the generation of a lot of `Project` nodes on the top of the plan, with serious problem which can lead also to `StackOverflowException`s.
The PR improves the doc of `withColumn`, in order to advise the user to avoid this pattern and do something different, ie. a single select with all the column he/she needs.
## How was this patch tested?
NA
Closes#23285 from mgaido91/SPARK-26224.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
In the PR, I propose to deprecate the `from_utc_timestamp()` and `to_utc_timestamp`, and disable them by default. The functions can be enabled back via the SQL config `spark.sql.legacy.utcTimestampFunc.enabled`. By default, any calls of the functions throw an analysis exception.
One of the reason for deprecation is functions violate semantic of `TimestampType` which is number of microseconds since epoch in UTC time zone. Shifting microseconds since epoch by time zone offset doesn't make sense because the result doesn't represent microseconds since epoch in UTC time zone any more, and cannot be considered as `TimestampType`.
## How was this patch tested?
The changes were tested by `DateExpressionsSuite` and `DateFunctionsSuite`.
Closes#24195 from MaxGekk/conv-utc-timestamp-deprecate.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
If object serializer has map of map key/value, pruning nested field should work.
Previously object serializer pruner don't recursively prunes nested fields if it is deeply located in map key or value. This patch proposed to address it by slightly factoring the pruning logic.
## How was this patch tested?
Added tests.
Closes#24260 from viirya/SPARK-27329.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
When `GetMapValue` contains a foldable Map and a non-foldable key, `SimplifyExtractValueOps` fails to optimize it transforming it into case when statements.
The PR adds a case for covering this situation too.
## How was this patch tested?
added UT
Closes#24223 from mgaido91/SPARK-27278.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Added implicit encoders for the `java.time.LocalDate` and `java.time.Instant` classes. This allows creation of datasets from instances of the types.
## How was this patch tested?
Added new tests to `JavaDatasetSuite` and `DatasetSuite`.
Closes#24249 from MaxGekk/instant-localdate-encoders.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
When there is a `Union`, the reported output datatypes are the ones of the first plan and the nullability is updated according to all the plans. For complex types, though, the nullability of their elements is not updated using the types from the other plans. This means that the nullability of the inner elements is the one of the first plan. If this is not compatible with the one of other plans, errors can happen (as reported in the JIRA).
The PR proposes to update the nullability of the inner elements of complex datatypes according to most permissive value of all the plans.
## How was this patch tested?
added UT
Closes#23726 from mgaido91/SPARK-26812.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
The current master doesn't support ANALYZE TABLE to collect tables stats for catalog views even if they are cached as follows;
```scala
scala> sql(s"CREATE VIEW v AS SELECT 1 c")
scala> sql(s"CACHE LAZY TABLE v")
scala> sql(s"ANALYZE TABLE v COMPUTE STATISTICS")
org.apache.spark.sql.AnalysisException: ANALYZE TABLE is not supported on views.;
...
```
Since SPARK-25196 has supported to an ANALYZE command to collect column statistics for cached catalog view, we could support table stats, too.
## How was this patch tested?
Added tests in `StatisticsCollectionSuite` and `InMemoryColumnarQuerySuite`.
Closes#24200 from maropu/SPARK-27266.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Added new benchmarks for:
1. JSON functions: `from_json`, `json_tuple` and `get_json_object`
2. Parsing `Dataset[String]` with JSON records
3. Comparing just splitting input text by lines with schema inferring, per-line parsing when encoding is set and not set.
Also existing benchmarks were refactored to use the `NoOp` datasource to eliminate overhead of triggers like `.filter((_: Row) => true).count()`.
## How was this patch tested?
By running `JSONBenchmark` locally.
Closes#24252 from MaxGekk/json-benchmark-func.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
In the first PR for file source V2, there was a rule for falling back Orc V2 table to OrcFileFormat: https://github.com/apache/spark/pull/23383/files#diff-57e8244b6964e4f84345357a188421d5R34
As we are migrating more file sources to data source V2, we should make the rule more generic. This PR proposes to:
1. Rename the rule `FallbackOrcDataSourceV2 ` to `FallBackFileSourceV2`.The name is more generic. And we use "fall back" as verb, while "fallback" is noun.
2. Rename the method `fallBackFileFormat` in `FileDataSourceV2` to `fallbackFileFormat`. Here we should use "fallback" as noun.
3. Add new method `fallbackFileFormat` in `FileTable`. This is for falling back to V1 in rule `FallbackOrcDataSourceV2 `.
## How was this patch tested?
Existing Unit tests.
Closes#24251 from gengliangwang/fallbackV1Rule.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
In AggregationIterator's loop function, we access the expressions by `expressions(i)`, the type of `expressions` is `::`, a subtype of list.
```
while (i < expressionsLength) {
val func = expressions(i).aggregateFunction
```
This PR replacing index with iterator to access the expressions list, which make it simpler.
## How was this patch tested?
Existing tests.
Closes#24238 from eatoncys/array.
Authored-by: 10129659 <chen.yanshan@zte.com.cn>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
We have been having a potential problem with `Union` when the children have the same expression id in their outputs, which happens when self-union.
## How was this patch tested?
Modified some tests to adjust plan changes.
Closes#24236 from ueshin/issues/SPARK-27314/dedup_union.
Authored-by: Takuya UESHIN <ueshin@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This fixes the `analyzer should replace current_date with literals` test in `ComputeCurrentTimeSuite` by making calculation of `min` and `max` days independent from time zone.
## How was this patch tested?
by `ComputeCurrentTimeSuite`.
Closes#24240 from MaxGekk/current-date-followup.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This makes the `CurrentDate` expression and `current_date` function independent from time zone settings. New result is number of days since epoch in `UTC` time zone. Previously, Spark shifted the current date (in `UTC` time zone) according the session time zone which violets definition of `DateType` - number of days since epoch (which is an absolute point in time, midnight of Jan 1 1970 in UTC time).
The changes makes `CurrentDate` consistent to `CurrentTimestamp` which is independent from time zone too.
## How was this patch tested?
The changes were tested by existing test suites like `DateExpressionsSuite`.
Closes#24185 from MaxGekk/current-date.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
move
```scala
org.apache.spark.sql.execution.streaming.BaseStreamingSource
org.apache.spark.sql.execution.streaming.BaseStreamingSink
```
to java directory
## How was this patch tested?
Existing UT.
Closes#24222 from ConeyLiu/move-scala-to-java.
Authored-by: Xianyang Liu <xianyang.liu@intel.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
When using fair scheduler mode for thrift server, we may have unpredictable result.
```
val pool = sessionToActivePool.get(parentSession.getSessionHandle)
if (pool != null) {
sqlContext.sparkContext.setLocalProperty(SparkContext.SPARK_SCHEDULER_POOL, pool)
}
```
The cause is we use thread pool to execute queries for thriftserver, and when we call setLocalProperty we may have unpredictab behavior.
```
/**
* Set a local property that affects jobs submitted from this thread, such as the Spark fair
* scheduler pool. User-defined properties may also be set here. These properties are propagated
* through to worker tasks and can be accessed there via
* [[org.apache.spark.TaskContext#getLocalProperty]].
*
* These properties are inherited by child threads spawned from this thread. This
* may have unexpected consequences when working with thread pools. The standard java
* implementation of thread pools have worker threads spawn other worker threads.
* As a result, local properties may propagate unpredictably.
*/
def setLocalProperty(key: String, value: String) {
if (value == null) {
localProperties.get.remove(key)
} else {
localProperties.get.setProperty(key, value)
}
}
```
I post an example on https://jira.apache.org/jira/browse/SPARK-26914 .
## How was this patch tested?
UT
Closes#23826 from caneGuy/zhoukang/fix-scheduler-error.
Authored-by: zhoukang <zhoukang199191@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In https://github.com/apache/spark/pull/23130, all empty files are excluded from target file splits in `FileSourceScanExec`.
In File source V2, we should keep the same behavior.
This PR suggests to filter out empty files on listing files in `PartitioningAwareFileIndex` so that the upper level doesn't need to handle them.
## How was this patch tested?
Unit test
Closes#24227 from gengliangwang/ignoreEmptyFile.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
For now, `ReuseSubquery` in Spark compares two subqueries at `SubqueryExec` level, which invalidates the `ReuseSubquery` rule. This pull request fixes this, and add a configuration key for subquery reuse exclusively.
## How was this patch tested?
add a unit test.
Closes#24214 from adrian-wang/reuse.
Authored-by: Daoyuan Wang <me@daoyuan.wang>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
To make the blocking behaviour consistent, this pr made catalog table/view `uncacheQuery` non-blocking by default. If this pr merged, all the behaviours in spark are non-blocking by default.
## How was this patch tested?
Pass Jenkins.
Closes#24212 from maropu/SPARK-26771-FOLLOWUP.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
In the original PR #24158, pruning nested field in complex map key was not supported, because some methods in schema pruning did't support it at that moment. This is a followup to add it.
## How was this patch tested?
Added tests.
Closes#24220 from viirya/SPARK-26847-followup.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
Subquery Reuse and Exchange Reuse are not the same feature， if we don't want to reuse subqueries，and we just want to reuse exchanges，only one configuration that cannot be done.
This PR adds a new configuration `spark.sql.subquery.reuse` to control subqueryReuse.
## How was this patch tested?
N/A
Closes#23998 from 10110346/SUBQUERY_REUSE.
Authored-by: liuxian <liu.xian3@zte.com.cn>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In data source V2, the method `PartitionReader.next()` has side effects. When the method is called, the current reader proceeds to the next record.
This might throw RuntimeException/IOException and File source V2 framework should handle these exceptions.
## How was this patch tested?
Unit test.
Closes#24225 from gengliangwang/corruptFile.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
To make https://github.com/apache/spark/pull/23788 easy to review. This PR moves `OrcColumnVector.java`, `OrcShimUtils.scala`, `OrcFilters.scala` and `OrcFilterSuite.scala` to `sql/core/v1.2.1` and copies it to `sql/core/v2.3.4`.
## How was this patch tested?
manual tests
```shell
diff -urNa sql/core/v1.2.1 sql/core/v2.3.4
```
Closes#24119 from wangyum/SPARK-27182.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
SPARK-26982 allows users to describe output of a query. However, it had a limitation of not supporting CTEs due to limitation of the grammar having a single rule to parse both select and inserts. After SPARK-27209, which splits select and insert parsing to two different rules, we can now support describing output of the CTEs easily.
## How was this patch tested?
Existing tests were modified.
Closes#24224 from dilipbiswal/describe_support_cte.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Currently, File source v2 allows each data source to specify the supported data types by implementing the method `supportsDataType` in `FileScan` and `FileWriteBuilder`.
However, in the read path, the validation checks all the data types in `readSchema`, which might contain partition columns. This is actually a regression. E.g. Text data source only supports String data type, while the partition columns can still contain Integer type since partition columns are processed by Spark.
This PR is to:
1. Refactor schema validation and check data schema only.
2. Filter the partition columns in data schema if user specified schema provided.
## How was this patch tested?
Unit test
Closes#24203 from gengliangwang/schemaValidation.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
In the PR, I propose to use the SQL config `spark.sql.session.timeZone` in formatting `TIMESTAMP` literals, and make formatting `DATE` literals independent from time zone. The changes make parsing and formatting `TIMESTAMP`/`DATE` literals consistent, and independent from the default time zone of current JVM.
Also this PR ports `TIMESTAMP`/`DATE` literals formatting on Proleptic Gregorian Calendar via using `TimestampFormatter`/`DateFormatter`.
## How was this patch tested?
Added new tests to `LiteralExpressionSuite`
Closes#24181 from MaxGekk/timezone-aware-literals.
Authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This is a follow-up of #23169.
We should've used string-interpolation to show the config key in the warn message.
## How was this patch tested?
Existing tests.
Closes#24217 from ueshin/issues/SPARK-26103/s.
Authored-by: Takuya UESHIN <ueshin@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Currently in the grammar file the rule `query` is responsible to parse both select and insert statements. As a result, we need to have more semantic checks in the code to guard against in-valid insert constructs in a query. Couple of examples are in the `visitCreateView` and `visitAlterView` functions. One other issue is that, we don't catch the `invalid insert constructs` in all the places until checkAnalysis (the errors we raise can be confusing as well). Here are couple of examples :
```SQL
select * from (insert into bar values (2));
```
```
Error in query: unresolved operator 'Project [*];
'Project [*]
+- SubqueryAlias `__auto_generated_subquery_name`
+- InsertIntoHiveTable `default`.`bar`, org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, false, false, [c1]
+- Project [cast(col1#18 as int) AS c1#20]
+- LocalRelation [col1#18]
```
```SQL
select * from foo where c1 in (insert into bar values (2))
```
```
Error in query: cannot resolve '(default.foo.`c1` IN (listquery()))' due to data type mismatch:
The number of columns in the left hand side of an IN subquery does not match the
number of columns in the output of subquery.
#columns in left hand side: 1.
#columns in right hand side: 0.
Left side columns:
[default.foo.`c1`].
Right side columns:
[].;;
'Project [*]
+- 'Filter c1#6 IN (list#5 [])
: +- InsertIntoHiveTable `default`.`bar`, org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, false, false, [c1]
: +- Project [cast(col1#7 as int) AS c1#9]
: +- LocalRelation [col1#7]
+- SubqueryAlias `default`.`foo`
+- HiveTableRelation `default`.`foo`, org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, [c1#6]
```
For both the cases above, we should reject the syntax at parser level.
In this PR, we create two top-level parser rules to parse `SELECT` and `INSERT` respectively.
I will create a small PR to allow CTEs in DESCRIBE QUERY after this PR is in.
## How was this patch tested?
Added tests to PlanParserSuite and removed the semantic check tests from SparkSqlParserSuites.
Closes#24150 from dilipbiswal/split-query-insert.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR proposes to add an assert on `ScalarSubquery`'s `dataType` because there's a possibility that `dataType` can be called alone before throwing analysis exception.
This was found while working on [SPARK-27088](https://issues.apache.org/jira/browse/SPARK-27088). This change calls `treeString` for logging purpose, and the specific test "scalar subquery with no column" under `AnalysisErrorSuite` was being failed with:
```
Caused by: sbt.ForkMain$ForkError: java.util.NoSuchElementException: next on empty iterator
...
at scala.collection.mutable.ArrayOps$ofRef.head(ArrayOps.scala:198)
at org.apache.spark.sql.catalyst.expressions.ScalarSubquery.dataType(subquery.scala:251)
at org.apache.spark.sql.catalyst.expressions.Alias.dataType(namedExpressions.scala:163)
...
at org.apache.spark.sql.catalyst.trees.TreeNode.simpleString(TreeNode.scala:465)
...
at org.apache.spark.sql.catalyst.rules.RuleExecutor$PlanChangeLogger.logRule(RuleExecutor.scala:176)
at org.apache.spark.sql.catalyst.rules.RuleExecutor.$anonfun$execute$2(RuleExecutor.scala:116)
...
```
The reason is that `treeString` for logging happened to call `dataType` on `ScalarSubquery` but one test has empty column plan. So, it happened to throw `NoSuchElementException` before checking analysis.
## How was this patch tested?
Manually tested.
```scala
ScalarSubquery(LocalRelation()).treeString
```
```
An exception or error caused a run to abort: assertion failed: Scala subquery should have only one column
java.lang.AssertionError: assertion failed: Scala subquery should have only one column
at scala.Predef$.assert(Predef.scala:223)
at org.apache.spark.sql.catalyst.expressions.ScalarSubquery.dataType(subquery.scala:252)
at org.apache.spark.sql.catalyst.analysis.AnalysisErrorSuite.<init>(AnalysisErrorSuite.scala:116)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at java.lang.Class.newInstance(Class.java:442)
at org.scalatest.tools.Runner$.genSuiteConfig(Runner.scala:1428)
at org.scalatest.tools.Runner$.$anonfun$doRunRunRunDaDoRunRun$8(Runner.scala:1236)
at scala.collection.immutable.List.map(List.scala:286)
at org.scalatest.tools.Runner$.doRunRunRunDaDoRunRun(Runner.scala:1235)
```
Closes#24182 from sandeep-katta/subqueryissue.
Authored-by: sandeep-katta <sandeep.katta2007@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
As per https://docs.oracle.com/javase/8/docs/api/java/lang/ClassLoader.html
``Class loaders that support concurrent loading of classes are known as parallel capable class loaders and are required to register themselves at their class initialization time by invoking the ClassLoader.registerAsParallelCapable method. Note that the ClassLoader class is registered as parallel capable by default. However, its subclasses still need to register themselves if they are parallel capable. ``
i.e we can have finer class loading locks by registering classloaders as parallel capable. (Refer to deadlock due to macro lock https://issues.apache.org/jira/browse/SPARK-26961).
All the classloaders we have are wrapper of URLClassLoader which by itself is parallel capable.
But this cannot be achieved by scala code due to static registration Refer https://github.com/scala/bug/issues/11429
## How was this patch tested?
All Existing UT must pass
Closes#24126 from ajithme/driverlock.
Authored-by: Ajith <ajith2489@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In SPARK-26837, we prune nested fields from object serializers if they are unnecessary in the query execution. SPARK-26837 leaves the support of MapType as a TODO item. This proposes to support map type.
## How was this patch tested?
Added tests.
Closes#24158 from viirya/SPARK-26847.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
We need to add `map_keys` and `map_values` into `ProjectionOverSchema` to support those methods in nested schema pruning. This also adds end-to-end tests to SchemaPruningSuite.
## How was this patch tested?
Added tests.
Closes#24202 from viirya/SPARK-27268.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Currently, if we want to configure `spark.sql.files.maxPartitionBytes` to 256 megabytes, we must set `spark.sql.files.maxPartitionBytes=268435456`, which is very unfriendly to users.
And if we set it like this:`spark.sql.files.maxPartitionBytes=256M`, we will encounter this exception:
```
Exception in thread "main" java.lang.IllegalArgumentException:
spark.sql.files.maxPartitionBytes should be long, but was 256M
at org.apache.spark.internal.config.ConfigHelpers$.toNumber(ConfigBuilder.scala)
```
This PR use `bytesConf` to replace `longConf` or `intConf`, if the configuration is used to set the number of bytes.
Configuration change list:
`spark.files.maxPartitionBytes`
`spark.files.openCostInBytes`
`spark.shuffle.sort.initialBufferSize`
`spark.shuffle.spill.initialMemoryThreshold`
`spark.sql.autoBroadcastJoinThreshold`
`spark.sql.files.maxPartitionBytes`
`spark.sql.files.openCostInBytes`
`spark.sql.defaultSizeInBytes`
## How was this patch tested?
1.Existing unit tests
2.Manual testing
Closes#24187 from 10110346/bytesConf.
Authored-by: liuxian <liu.xian3@zte.com.cn>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Remove Scala 2.11 support in build files and docs, and in various parts of code that accommodated 2.11. See some targeted comments below.
## How was this patch tested?
Existing tests.
Closes#23098 from srowen/SPARK-26132.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This is a follow-up of #24047 and it fixed wrong tests in `StatisticsCollectionSuite`.
## How was this patch tested?
Pass Jenkins.
Closes#24198 from maropu/SPARK-25196-FOLLOWUP-2.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
This fixes a typo in the SQL config value: DATETIME_JAVA8API_**EANBLED** -> DATETIME_JAVA8API_**ENABLED**.
## How was this patch tested?
This was tested by `RowEncoderSuite` and `LiteralExpressionSuite`.
Closes#24194 from MaxGekk/date-localdate-followup.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Hive UDAF knows the aggregation mode when creating the aggregation buffer, so that it can create different buffers for different inputs: the original data or the aggregation buffer. Please see an example in the [sketches library](7f9e76e9e0/src/main/java/com/yahoo/sketches/hive/cpc/DataToSketchUDAF.java (L107)).
However, the Hive UDAF adapter in Spark always creates the buffer with partial1 mode, which can only deal with one input: the original data. This PR fixes it.
All credits go to pgandhi999 , who investigate the problem and study the Hive UDAF behaviors, and write the tests.
close https://github.com/apache/spark/pull/23778
## How was this patch tested?
a new test
Closes#24144 from cloud-fan/hive.
Lead-authored-by: pgandhi <pgandhi@verizonmedia.com>
Co-authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
`SelectedField` doesn't support map_keys and map_values for now. When map key or value is complex struct, we should be able to prune unnecessary fields from keys/values. This proposes to add map_keys and map_values support to `SelectedField`.
## How was this patch tested?
Added tests.
Closes#24179 from viirya/SPARK-27241.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
This is a follow-up of #24047; to follow the `CacheManager.cachedData` lock semantics, this pr wrapped the `statsOfPlanToCache` update with `synchronized`.
## How was this patch tested?
Pass Jenkins
Closes#24178 from maropu/SPARK-24047-FOLLOWUP.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Migrate CSV to File Data Source V2.
## How was this patch tested?
Unit test
Closes#24005 from gengliangwang/CSVDataSourceV2.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
The hashSeed method allocates 64 bytes instead of 8. Other bytes are always zeros (thanks to default behavior of ByteBuffer). And they could be excluded from hash calculation because they don't differentiate inputs.
## How was this patch tested?
By running the existing tests - XORShiftRandomSuite
Closes#20793 from MaxGekk/hash-buff-size.
Lead-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
`RuleExecutor.dumpTimeSpent` currently throws an exception when invoked before any rule is run or immediately after `RuleExecutor.reset`. The PR makes it returning an empty summary, which is the expected output instead.
## How was this patch tested?
added UT
Closes#24180 from mgaido91/SPARK-27243.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This moves parsing `CREATE TABLE ... USING` statements into catalyst. Catalyst produces logical plans with the parsed information and those plans are converted to v1 `DataSource` plans in `DataSourceAnalysis`.
This prepares for adding v2 create plans that should receive the information parsed from SQL without being translated to v1 plans first.
This also makes it possible to parse in catalyst instead of breaking the parser across the abstract `AstBuilder` in catalyst and `SparkSqlParser` in core.
For more information, see the [mailing list thread](https://lists.apache.org/thread.html/54f4e1929ceb9a2b0cac7cb058000feb8de5d6c667b2e0950804c613%3Cdev.spark.apache.org%3E).
## How was this patch tested?
This uses existing tests to catch regressions. This introduces no behavior changes.
Closes#24029 from rdblue/SPARK-27108-add-parsed-create-logical-plans.
Authored-by: Ryan Blue <blue@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This patch proposes ManifestFileCommitProtocol to clean up incomplete output files in task level if task aborts. Please note that this works as 'best-effort', not kind of guarantee, as we have in HadoopMapReduceCommitProtocol.
## How was this patch tested?
Added UT.
Closes#24154 from HeartSaVioR/SPARK-27210.
Authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan@gmail.com>
Signed-off-by: Shixiong Zhu <zsxwing@gmail.com>
Co-authored-by: Philip Stutz <philip.stutzgmail.com>
## What changes were proposed in this pull request?
This PR adds support for casting
* `ByteType`
* `ShortType`
* `IntegerType`
* `LongType`
to `BinaryType`.
## How was this patch tested?
We added unit tests for casting instances of the above types. For validation, we used Javas `DataOutputStream` to compare the resulting byte array with the result of `Cast`.
We state that the contribution is our original work and that we license the work to the project under the project’s open source license.
cloud-fan we'd appreciate a review if you find the time, thx
Closes#24107 from s1ck/cast_to_binary.
Authored-by: Martin Junghanns <martin.junghanns@neotechnology.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to avoid the `TimeZone` to `ZoneId` conversion in `DateTimeUtils.stringToTimestamp` by changing signature of the method, and require a parameter of `ZoneId` type. This will allow to avoid unnecessary conversion (`TimeZone` -> `String` -> `ZoneId`) per each row.
Also the PR avoids creation of `ZoneId` instances from `ZoneOffset` because `ZoneOffset` is a sub-class, and the conversion is unnecessary too.
## How was this patch tested?
It was tested by `DateTimeUtilsSuite` and `CastSuite`.
Closes#24155 from MaxGekk/stringtotimestamp-zoneid.
Authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Refactored code in tests regarding the "withLogAppender()" pattern by creating a general helper method in SparkFunSuite.
## How was this patch tested?
Passed existing tests.
Closes#24172 from maryannxue/log-appender.
Authored-by: maryannxue <maryannxue@apache.org>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
- Support N-part identifier in SQL
- N-part identifier extractor in Analyzer
## How was this patch tested?
- A new unit test suite ResolveMultipartRelationSuite
- CatalogLoadingSuite
rblue cloud-fan mccheah
Closes#23848 from jzhuge/SPARK-26946.
Authored-by: John Zhuge <jzhuge@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to extend `Literal.apply` to support constructing literals of `TimestampType` and `DateType` from `java.time.Instant` and `java.time.LocalDate`. The java classes have been already supported as external types for `TimestampType` and `DateType` by the PRs #23811 and #23913.
## How was this patch tested?
Added new tests to `LiteralExpressionSuite`.
Closes#24161 from MaxGekk/literal-instant-localdate.
Authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This pr extended `ANALYZE` commands to analyze column stats for cached table.
In common use cases, users read catalog table data, join/aggregate them, and then cache the result for following reuse. Since we are only allowed to analyze column statistics in catalog tables via ANALYZE commands, the current optimization depends on non-existing or inaccurate column statistics of cached data. So, it would be great if we could analyze cached data as follows;
```scala
scala> def printColumnStats(tableName: String) = {
| spark.table(tableName).queryExecution.optimizedPlan.stats.attributeStats.foreach {
| case (k, v) => println(s"[$k]: $v")
| }
| }
scala> sql("SET spark.sql.cbo.enabled=true")
scala> sql("SET spark.sql.statistics.histogram.enabled=true")
scala> spark.range(1000).selectExpr("id % 33 AS c0", "rand() AS c1", "0 AS c2").write.saveAsTable("t")
scala> sql("ANALYZE TABLE t COMPUTE STATISTICS FOR COLUMNS c0, c1, c2")
scala> spark.table("t").groupBy("c0").agg(count("c1").as("v1"), sum("c2").as("v2")).createTempView("temp")
// Prints column statistics in catalog table `t`
scala> printColumnStats("t")
[c0#7073L]: ColumnStat(Some(33),Some(0),Some(32),Some(0),Some(8),Some(8),Some(Histogram(3.937007874015748,[Lorg.apache.spark.sql.catalyst.plans.logical.HistogramBin;9f7c1c)),2)
[c1#7074]: ColumnStat(Some(944),Some(3.2108484832404915E-4),Some(0.997584797423909),Some(0),Some(8),Some(8),Some(Histogram(3.937007874015748,[Lorg.apache.spark.sql.catalyst.plans.logical.HistogramBin;60a386b1)),2)
[c2#7075]: ColumnStat(Some(1),Some(0),Some(0),Some(0),Some(4),Some(4),Some(Histogram(3.937007874015748,[Lorg.apache.spark.sql.catalyst.plans.logical.HistogramBin;5ffd29e8)),2)
// Prints column statistics on cached table `temp`
scala> sql("CACHE TABLE temp")
scala> printColumnStats("temp")
<No Column Statistics>
// Analyzes columns `v1` and `v2` on cached table `temp`
scala> sql("ANALYZE TABLE temp COMPUTE STATISTICS FOR COLUMNS v1, v2")
// Then, prints again
scala> printColumnStats("temp")
[v1#7084L]: ColumnStat(Some(2),Some(30),Some(31),Some(0),Some(8),Some(8),Some(Histogram(0.12992125984251968,[Lorg.apache.spark.sql.catalyst.plans.logical.HistogramBin;49f7bb6f)),2)
[v2#7086L]: ColumnStat(Some(1),Some(0),Some(0),Some(0),Some(8),Some(8),Some(Histogram(0.12992125984251968,[Lorg.apache.spark.sql.catalyst.plans.logical.HistogramBin;12701677)),2)
// Analyzes one left column and prints again
scala> sql("ANALYZE TABLE temp COMPUTE STATISTICS FOR COLUMNS c0")
scala> printColumnStats("temp")
[v1#7084L]: ColumnStat(Some(2),Some(30),Some(31),Some(0),Some(8),Some(8),Some(Histogram(0.12992125984251968,[Lorg.apache.spark.sql.catalyst.plans.logical.HistogramBin;49f7bb6f)),2)
[v2#7086L]: ColumnStat(Some(1),Some(0),Some(0),Some(0),Some(8),Some(8),Some(Histogram(0.12992125984251968,[Lorg.apache.spark.sql.catalyst.plans.logical.HistogramBin;12701677)),2)
[c0#7073L]: ColumnStat(Some(33),Some(0),Some(32),Some(0),Some(8),Some(8),Some(Histogram(0.12992125984251968,[Lorg.apache.spark.sql.catalyst.plans.logical.HistogramBin;1f5c1b81)),2)
```
## How was this patch tested?
Added tests in `CachedTableSuite` and `StatisticsCollectionSuite`.
Closes#24047 from maropu/SPARK-25196-4.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
The SQL grammar `SHOW DATABASES` is mixed in some grammar of table. I think should arrange the grammar of database together.
This is good for maintenance and readability.
## How was this patch tested?
No UT
Closes#24138 from beliefer/arrange-sql-grammar.
Authored-by: gengjiaan <gengjiaan@360.cn>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This change is a cleanup and consolidation of 3 areas related to Pandas UDFs:
1) `ArrowStreamPandasSerializer` now inherits from `ArrowStreamSerializer` and uses the base class `dump_stream`, `load_stream` to create Arrow reader/writer and send Arrow record batches. `ArrowStreamPandasSerializer` makes the conversions to/from Pandas and converts to Arrow record batch iterators. This change removed duplicated creation of Arrow readers/writers.
2) `createDataFrame` with Arrow now uses `ArrowStreamPandasSerializer` instead of doing its own conversions from Pandas to Arrow and sending record batches through `ArrowStreamSerializer`.
3) Grouped Map UDFs now reuse existing logic in `ArrowStreamPandasSerializer` to send Pandas DataFrame results as a `StructType` instead of separating each column from the DataFrame. This makes the code a little more consistent with the Python worker, but does require that the returned StructType column is flattened out in `FlatMapGroupsInPandasExec` in Scala.
## How was this patch tested?
Existing tests and ran tests with pyarrow 0.12.0
Closes#24095 from BryanCutler/arrow-refactor-cleanup-UDFs.
Authored-by: Bryan Cutler <cutlerb@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Currently aliases are not handled in the Aggregate Estimation due to which stats are not getting propagated. This causes CBO join-reordering to not give optimal join plans. ProjectEstimation is already taking care of aliases, we need same logic for AggregateEstimation as well to properly propagate stats when CBO is enabled.
## How was this patch tested?
This patch is manually tested using the query Q83 of TPCDS benchmark (scale 1000)
Closes#23803 from venkata91/aggstats.
Authored-by: Venkata krishnan Sowrirajan <vsowrirajan@qubole.com>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
When `TreeNode.parseToJson` may throw an assert error without any error message when a TreeNode is not implemented properly, and it's hard to find the bad TreeNode implementation.
This PR adds the assert message to improve the error, like what `TreeNode.jsonFields` does.
## How was this patch tested?
Jenkins
Closes#24159 from zsxwing/SPARK-27221.
Authored-by: Shixiong Zhu <zsxwing@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
When passing in a user schema to create a DataFrame, there might be mismatched nullability between the user schema and the the actual data. All related public interfaces now perform catalyst conversion using the user provided schema, which catches such mismatches to avoid runtime errors later on. However, there're private methods which allow this conversion to be skipped, so we need to remove these private methods which may lead to confusion and potential issues.
## How was this patch tested?
Passed existing tests. No new tests were added since this PR removed the private interfaces that would potentially cause null problems and other interfaces are covered already by existing tests.
Closes#24162 from maryannxue/spark-27223.
Authored-by: maryannxue <maryannxue@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Update comments in `InMemoryFileIndex.listLeafFiles` to keep according with code.
## How was this patch tested?
existing test cases
Closes#24146 from WangGuangxin/SPARK-27202.
Authored-by: wangguangxin.cn <wangguangxin.cn@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
Note, this doesn't really resolve the JIRA, but makes the changes we can make so far that would be required to solve it.
## What changes were proposed in this pull request?
Java 9+ changed how ClassLoaders work. The two most salient points:
- The boot classloader no longer 'sees' the platform classes. A new 'platform classloader' does and should be the parent of new ClassLoaders
- The system classloader is no longer a URLClassLoader, so we can't get the URLs of JARs in its classpath
## How was this patch tested?
We'll see whether Java 8 tests still pass here. Java 11 tests do not fully pass at this point; more notes below. This does make progress on the failures though.
(NB: to test with Java 11, you need to build with Java 8 first, setting JAVA_HOME and java's executable correctly, then switch both to Java 11 for testing.)
Closes#24057 from srowen/SPARK-26839.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to use `ZoneId` instead of `TimeZone` in:
- the `apply` and `getFractionFormatter ` methods of the `TimestampFormatter` object,
- and in implementations of the `TimestampFormatter` trait like `FractionTimestampFormatter`.
The reason of the changes is to avoid unnecessary conversion from `TimeZone` to `ZoneId` because `ZoneId` is used in `TimestampFormatter` implementations internally, and the conversion is performed via `String` which is not for free. Also taking into account that `TimeZone` instances are converted from `String` in some cases, the worse case looks like `String` -> `TimeZone` -> `String` -> `ZoneId`. The PR eliminates the unneeded conversions.
## How was this patch tested?
It was tested by `DateExpressionsSuite`, `DateTimeUtilsSuite` and `TimestampFormatterSuite`.
Closes#24141 from MaxGekk/zone-id.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This introduces a new SQL function 'xxhash64' for getting a 64-bit hash of an arbitrary number of columns.
This is designed to exactly mimic the 32-bit `hash`, which uses
MurmurHash3. The name is designed to be more future-proof than the
'hash', by indicating the exact algorithm used, similar to md5 and the
sha hashes.
## How was this patch tested?
The tests for the existing `hash` function were duplicated to run with `xxhash64`.
Closes#24019 from huonw/hash64.
Authored-by: Huon Wilson <Huon.Wilson@data61.csiro.au>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
DecimalType Literal should not be casted to Long.
eg. For `df.filter("x < 3.14")`, assuming df (x in DecimalType) reads from a ORC table and uses the native ORC reader with predicate push down enabled, we will push down the `x < 3.14` predicate to the ORC reader via a SearchArgument.
OrcFilters will construct the SearchArgument, but not handle the DecimalType correctly.
The previous impl will construct `x < 3` from `x < 3.14`.
## How was this patch tested?
```
$ sbt
> sql/testOnly *OrcFilterSuite
> sql/testOnly *OrcQuerySuite -- -z "27160"
```
Closes#24092 from sadhen/spark27160.
Authored-by: Darcy Shen <sadhen@zoho.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
The reader schema is said to be evolved (or projected) when it changed after the data is written by writers. Apache Spark file-based data sources have a test coverage for that; e.g. [ReadSchemaSuite.scala](https://github.com/apache/spark/blob/master/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/ReadSchemaSuite.scala). This PR aims to add a test coverage for nested columns by adding and hiding nested columns.
## How was this patch tested?
Pass the Jenkins with newly added tests.
Closes#24139 from dongjoon-hyun/SPARK-27197.
Authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: DB Tsai <d_tsai@apple.com>
## What changes were proposed in this pull request?
Currently, users meet job abortions while creating a table using the Hive serde "STORED AS" with invalid column names. We had better prevent this by raising **AnalysisException** with a guide to use aliases instead like Paquet data source tables.
thus making compatible with error message shown while creating Parquet/ORC native table.
**BEFORE**
```scala
scala> sql("set spark.sql.hive.convertMetastoreParquet=false")
scala> sql("CREATE TABLE a STORED AS PARQUET AS SELECT 1 AS `COUNT(ID)`")
Caused by: java.lang.IllegalArgumentException: No enum constant parquet.schema.OriginalType.col1
```
**AFTER**
```scala
scala> sql("CREATE TABLE a STORED AS PARQUET AS SELECT 1 AS `COUNT(ID)`")
Please use alias to rename it.;eption: Attribute name "count(ID)" contains invalid character(s) among " ,;{}()\n\t=".
```
## How was this patch tested?
Pass the Jenkins with the newly added test case.
Closes#24075 from sujith71955/master_serde.
Authored-by: s71955 <sujithchacko.2010@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This pr is a follow-up of #24093 and includes fixes below;
- Lists up all the keywords of Spark only (that is, drops non-keywords there); I listed up all the keywords of ANSI SQL-2011 in the previous commit (SPARK-26215).
- Sorts the keywords in `SqlBase.g4` in a alphabetical order
## How was this patch tested?
Pass Jenkins.
Closes#24125 from maropu/SPARK-27161-FOLLOWUP.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Make ScalaReflection subtype checking thread safe by adding a lock. There is a thread safety bug in the <:< operator in all versions of scala (https://github.com/scala/bug/issues/10766).
## How was this patch tested?
Existing tests and a new one for the new subtype checking function.
Closes#24085 from mwlon/SPARK-26555.
Authored-by: mwlon <mloncaric@hmc.edu>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Currently, DataFrameReader/DataFrameReader supports setting Hadoop configurations via method `.option()`.
E.g, the following test case should be passed in both ORC V1 and V2
```
class TestFileFilter extends PathFilter {
override def accept(path: Path): Boolean = path.getParent.getName != "p=2"
}
withTempPath { dir =>
val path = dir.getCanonicalPath
val df = spark.range(2)
df.write.orc(path + "/p=1")
df.write.orc(path + "/p=2")
val extraOptions = Map(
"mapred.input.pathFilter.class" -> classOf[TestFileFilter].getName,
"mapreduce.input.pathFilter.class" -> classOf[TestFileFilter].getName
)
assert(spark.read.options(extraOptions).orc(path).count() === 2)
}
}
```
While Hadoop Configurations are case sensitive, the current data source V2 APIs are using `CaseInsensitiveStringMap` in the top level entry `TableProvider`.
To create Hadoop configurations correctly, I suggest
1. adding a new method `asCaseSensitiveMap` in `CaseInsensitiveStringMap`.
2. Make `CaseInsensitiveStringMap` read-only to ambiguous conversion in `asCaseSensitiveMap`
## How was this patch tested?
Unit test
Closes#24094 from gengliangwang/originalMap.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
The reader schema is said to be evolved (or projected) when it changed after the data is written by writers. Apache Spark file-based data sources have a test coverage for that, [ReadSchemaSuite.scala](https://github.com/apache/spark/blob/master/sql/core/src/test/scala/org/apache/spark/sql/execution/datasources/ReadSchemaSuite.scala). This PR aims to add `AvroReadSchemaSuite` to ensure the minimal consistency among file-based data sources and prevent a future regression in Avro data source.
## How was this patch tested?
Pass the Jenkins with the newly added test suite.
Closes#24135 from dongjoon-hyun/SPARK-27195.
Authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
This adds a new method, `capabilities` to `v2.Table` that returns a set of `TableCapability`. Capabilities are used to fail queries during analysis checks, `V2WriteSupportCheck`, when the table does not support operations, like truncation.
## How was this patch tested?
Existing tests for regressions, added new analysis suite, `V2WriteSupportCheckSuite`, for new capability checks.
Closes#24012 from rdblue/SPARK-26811-add-capabilities.
Authored-by: Ryan Blue <blue@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Make it more clear about how Spark categories keywords regarding to the config `spark.sql.parser.ansi.enabled`
## How was this patch tested?
existing tests
Closes#24093 from cloud-fan/parser.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
There was some mistake on test code: it has wrong assertion. The patch proposes fixing it, as well as fixing other stuff to make test really pass.
## How was this patch tested?
Fixed unit test.
Closes#24112 from HeartSaVioR/SPARK-22000-hotfix.
Authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan@gmail.com>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
This is a minor follow-up PR for SPARK-27096. The original PR reconciled the join types supported between dataset and sql interface. In case of R, we do the join type validation in the R side. In this PR we do the correct validation and adds tests in R to test all the join types along with the error condition. Along with this, i made the necessary doc correction.
## How was this patch tested?
Add R tests.
Closes#24087 from dilipbiswal/joinfix_followup.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
During the migration of CSV V2(https://github.com/apache/spark/pull/24005), I find that we can improve the file source v2 framework by:
1. check duplicated column names in both read and write
2. Not all the file sources support filter push down. So remove `SupportsPushDownFilters` from FileScanBuilder
3. The method `isSplitable` might require data source options. Add a new member `options` to FileScan.
4. Make `FileTable.schema` a lazy value instead of a method.
## How was this patch tested?
Unit test
Closes#24066 from gengliangwang/reviseFileSourceV2.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
The data source option check_files_exist is introduced in In #23383 when the file source V2 framework is implemented. In the PR, FileIndex was created as a member of FileTable, so that we could implement partition pruning like 0f9fcab in the future. At that time `FileIndex`es will always be created for file writes, so we needed the option to decide whether to check file existence.
After https://github.com/apache/spark/pull/23774, the option is not needed anymore, since Dataframe writes won't create unnecessary FileIndex. This PR is to remove the option.
## How was this patch tested?
Unit test.
Closes#24069 from gengliangwang/removeOptionCheckFilesExist.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Further load increases in our production environment have shown that even the read locks can cause some contention, since they contain a mechanism that turns a read lock into an exclusive lock if a writer has been starved out. This PR reduces the potential for lock contention even further than https://github.com/apache/spark/pull/23833. Additionally, it uses more idiomatic scala than the previous implementation.
cloud-fan & gatorsmile This is a relatively minor improvement to the previous CacheManager changes. At this point, I think we finally are doing the minimum possible amount of locking.
## How was this patch tested?
Has been tested on a live system where the blocking was causing major issues and it is working well.
CacheManager has no explicit unit test but is used in many places internally as part of the SharedState.
Closes#24028 from DaveDeCaprio/read-locks-master.
Lead-authored-by: Dave DeCaprio <daved@alum.mit.edu>
Co-authored-by: David DeCaprio <daved@alum.mit.edu>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
We create many stores in the SQLAppStatusListenerSuite, but we need to the close store after test.
## How was this patch tested?
Existing tests
Closes#24079 from shahidki31/SPARK-27145.
Authored-by: Shahid <shahidki31@gmail.com>
Signed-off-by: Marcelo Vanzin <vanzin@cloudera.com>
## What changes were proposed in this pull request?
In order to make the upgrade built-in Hive changes smaller.
This pr workaround the simplest 3 API changes first.
## How was this patch tested?
manual tests
Closes#24018 from wangyum/SPARK-23749.
Lead-authored-by: Yuming Wang <yumwang@ebay.com>
Co-authored-by: Yuming Wang <wgyumg@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
In SPARK-27011, we introduced `IgnoreCahedData` to avoid plan node copys in `CacheManager`.
Since `ClearCacheCommand` has no argument, it also can extend `IgnoreCahedData`.
## How was this patch tested?
Pass Jenkins.
Closes#24081 from maropu/SPARK-27011-2.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
This pr updated parsing rules in `SqlBase.g4` to support a SQL query below when ANSI mode enabled;
```
SELECT CAST('2017-08-04' AS DATE) + 1 days;
```
The current master cannot parse it though, other dbms-like systems support the syntax (e.g., hive and mysql). Also, the syntax is frequently used in the official TPC-DS queries.
This pr added new tokens as follows;
```
YEAR | YEARS | MONTH | MONTHS | WEEK | WEEKS | DAY | DAYS | HOUR | HOURS | MINUTE
MINUTES | SECOND | SECONDS | MILLISECOND | MILLISECONDS | MICROSECOND | MICROSECONDS
```
Then, it registered the keywords below as the ANSI reserved (this follows SQL-2011);
```
DAY | HOUR | MINUTE | MONTH | SECOND | YEAR
```
## How was this patch tested?
Added tests in `SQLQuerySuite`, `ExpressionParserSuite`, and `TableIdentifierParserSuite`.
Closes#20433 from maropu/SPARK-23264.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
This is a followup for https://github.com/apache/spark/pull/24049 to reduce the scope of pattern based on the review comments.
## How was this patch tested?
Pass the existing test.
Closes#24082 from dongjoon-hyun/SPARK-27123-2.
Authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
This patch deduplicates the huge if statements regarding getting value between specialized getters.
## How was this patch tested?
Existing UT.
Closes#24016 from HeartSaVioR/MINOR-deduplicate-get-from-specialized-getters.
Authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This is a follow up PR for #23943 in order to update the benchmark result with EC2 `r3.xlarge` instance.
## How was this patch tested?
N/A. (Manually compare the diff)
Closes#24078 from dongjoon-hyun/SPARK-27034.
Authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: DB Tsai <d_tsai@apple.com>
## What changes were proposed in this pull request?
It's a little awkward to have 2 different classes(`CaseInsensitiveStringMap` and `DataSourceOptions`) to present the options in data source and catalog API.
This PR merges these 2 classes, while keeping the name `CaseInsensitiveStringMap`, which is more precise.
## How was this patch tested?
existing tests
Closes#24025 from cloud-fan/option.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
The PR puts in a limit on the size of a debug string generated for a tree node. Helps to fix out of memory errors when large plans have huge debug strings. In addition to SPARK-26103, this should also address SPARK-23904 and SPARK-25380. AN alternative solution was proposed in #23076, but that solution doesn't address all the cases that can cause a large query. This limit is only on calls treeString that don't pass a Writer, which makes it play nicely with #22429, #23018 and #23039. Full plans can be written to files, but truncated plans will be used when strings are held in memory, such as for the UI.
- A new configuration parameter called spark.sql.debug.maxPlanLength was added to control the length of the plans.
- When plans are truncated, "..." is printed to indicate that it isn't a full plan
- A warning is printed out the first time a truncated plan is displayed. The warning explains what happened and how to adjust the limit.
## How was this patch tested?
Unit tests were created for the new SizeLimitedWriter. Also a unit test for TreeNode was created that checks that a long plan is correctly truncated.
Closes#23169 from DaveDeCaprio/text-plan-size.
Lead-authored-by: Dave DeCaprio <daved@alum.mit.edu>
Co-authored-by: David DeCaprio <daved@alum.mit.edu>
Signed-off-by: Marcelo Vanzin <vanzin@cloudera.com>
## What changes were proposed in this pull request?
According to the [design](https://docs.google.com/document/d/1vI26UEuDpVuOjWw4WPoH2T6y8WAekwtI7qoowhOFnI4/edit?usp=sharing), the life cycle of `StreamingWrite` should be the same as the read side `MicroBatch/ContinuousStream`, i.e. each run of the stream query, instead of each epoch.
This PR fixes it.
## How was this patch tested?
existing tests
Closes#23981 from cloud-fan/dsv2.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This is a followup to #23943. This proposes to rename ParquetSchemaPruning to SchemaPruning as ParquetSchemaPruning supports both Parquet and ORC v1 now.
## How was this patch tested?
Existing tests.
Closes#24077 from viirya/nested-schema-pruning-orc-followup.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This patch proposes to reuse existing methods in (De)serializerBuildHelper in RowEncoder to achieve deduplication as well as consistent creation of serialization/deserialization of same type.
## How was this patch tested?
Existing UT.
Closes#24014 from HeartSaVioR/SPARK-27092.
Authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This pr added code to forbid reserved keywords as identifiers when ANSI mode is on.
This is a follow-up of SPARK-26215(#23259).
## How was this patch tested?
Added tests in `TableIdentifierParserSuite`.
Closes#23880 from maropu/SPARK-26976.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
We only supported nested schema pruning for Parquet previously. This proposes to support nested schema pruning for ORC too.
Note: This only covers ORC v1. For ORC v2, the necessary change is at the schema pruning rule. We should deal with ORC v2 as a TODO item, in order to reduce review burden.
## How was this patch tested?
Added tests.
Closes#23943 from viirya/nested-schema-pruning-orc.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
`CollapseProject` optimizer rule simplifies some plans by merging the adjacent projects and performing alias substitutions.
```scala
scala> sql("SELECT b c FROM (SELECT a b FROM t)").explain
== Physical Plan ==
*(1) Project [a#5 AS c#1]
+- Scan hive default.t [a#5], HiveTableRelation `default`.`t`, org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, [a#5]
```
We can do that more complex cases like the following. This PR aims to handle adjacent projects across limit/repartition/sample. Here, repartition means `Repartition`, not `RepartitionByExpression`.
**BEFORE**
```scala
scala> sql("SELECT b c FROM (SELECT /*+ REPARTITION(1) */ a b FROM t)").explain
== Physical Plan ==
*(2) Project [b#0 AS c#1]
+- Exchange RoundRobinPartitioning(1)
+- *(1) Project [a#5 AS b#0]
+- Scan hive default.t [a#5], HiveTableRelation `default`.`t`, org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, [a#5]
```
**AFTER**
```scala
scala> sql("SELECT b c FROM (SELECT /*+ REPARTITION(1) */ a b FROM t)").explain
== Physical Plan ==
Exchange RoundRobinPartitioning(1)
+- *(1) Project [a#11 AS c#7]
+- Scan hive default.t [a#11], HiveTableRelation `default`.`t`, org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, [a#11]
```
## How was this patch tested?
Pass the Jenkins with the newly added and updated test cases.
Closes#24049 from dongjoon-hyun/SPARK-27123.
Authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: DB Tsai <d_tsai@apple.com>
## What changes were proposed in this pull request?
LEGACY_DRIVER_IDENTIFIER and its reference are removed.
corresponding references test are updated.
## How was this patch tested?
tested UT test cases
Closes#24026 from shivusondur/newjira2.
Authored-by: shivusondur <shivusondur@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Added test suite for AllExecutionsPage class. Checked the scenarios for SPARK-27019 and SPARK-27075.
## How was this patch tested?
Added UT, manually tested
Closes#24052 from shahidki31/SPARK-27125.
Authored-by: Shahid <shahidki31@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
When cache is enabled ( i.e once cache table command is executed), any following sql will trigger
CacheManager#lookupCachedData which will create a copy of the tree node, which inturn calls TreeNode#makeCopy. Here the problem is it will try to create a copy instance. But as ResetCommand is a case object this will fail
## How was this patch tested?
Added UT to reproduce the issue
Closes#23918 from ajithme/reset.
Authored-by: Ajith <ajith2489@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In PR, I propose to refactor the `parse()` method of `Iso8601DateFormatter`/`Iso8601DateFormatter` and `toInstantWithZoneId` of `toInstantWithZoneId` to achieve the following:
- Avoid unnecessary conversion of parsed input to `java.time.Instant` before converting it to micros and days. Necessary information exists in `ZonedDateTime` already, and micros/days can be extracted from the former one.
- Avoid additional extraction of LocalTime from parsed object, more precisely, double query of `TemporalQueries.localTime` from `temporalAccessor`.
- Avoid additional extraction of zone id from parsed object, in particular, double query of `TemporalQueries.offset()`.
- Using `ZoneOffset.UTC` instead of `ZoneId.of` in `DateFormatter`. This allows to avoid looking for zone offset by zone id.
## How was this patch tested?
By existing test suite `DateTimeUtilsSuite`, `TimestampFormatterSuite` and `DateFormatterSuite`.
Closes#24030 from MaxGekk/query-localtime.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This PR proposes to have one base R runner.
In the high level,
Previously, it had `ArrowRRunner` and it inherited `RRunner`:
```
└── RRunner
└── ArrowRRunner
```
After this PR, now it has a `BaseRRunner`, and `ArrowRRunner` and `RRunner` inherit `BaseRRunner`:
```
└── BaseRRunner
├── ArrowRRunner
└── RRunner
```
This way is consistent with Python's.
In more details, see below:
```scala
class BaseRRunner[IN, OUT] {
def compute: Iterator[OUT] = {
...
newWriterThread(...).start()
...
newReaderIterator(...)
...
}
// Make a thread that writes data from JVM to R process
abstract protected def newWriterThread(..., iter: Iterator[IN], ...): WriterThread
// Make an iterator that reads data from the R process to JVM
abstract protected def newReaderIterator(...): ReaderIterator
abstract class WriterThread(..., iter: Iterator[IN], ...) extends Thread {
override def run(): Unit {
...
writeIteratorToStream(...)
...
}
// Actually writing logic to the socket stream.
abstract protected def writeIteratorToStream(dataOut: DataOutputStream): Unit
}
abstract class ReaderIterator extends Iterator[OUT] {
override def hasNext(): Boolean = {
...
read(...)
...
}
override def next(): OUT = {
...
hasNext()
...
}
// Actually reading logic from the socket stream.
abstract protected def read(...): OUT
}
}
```
```scala
case [Arrow]RRunner extends BaseRRunner {
override def newWriterThread(...) {
new WriterThread(...) {
override def writeIteratorToStream(...) {
...
}
}
}
override def newReaderIterator(...) {
new ReaderIterator(...) {
override def read(...) {
...
}
}
}
}
```
## How was this patch tested?
Manually tested and existing tests should cover.
Closes#23977 from HyukjinKwon/SPARK-26923.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
In Spark 2.1, we hit a correctness bug. When reading a Hive serde parquet table with the native parquet data source, and the actual file schema doesn't match the table schema in Hive metastore(only upper/lower case difference), the query returns 0 results.
The reason is that, the parquet reader is case sensitive. If we push down filters with column names that don't match the file physical schema case-sensitively, no data will be returned.
To fix this bug, there were 2 solutions proposed at that time:
1. Add a config to optionally disable parquet filter pushdown, and make parquet column pruning case insensitive.
https://github.com/apache/spark/pull/16797
2. Infer the actual schema from data files, when reading Hive serde table with native data source. A config is provided to disable it.
https://github.com/apache/spark/pull/17229
Solution 2 was accepted and merged to Spark 2.1.1
In Spark 2.4, we refactored the parquet data source a little:
1. do parquet filter pushdown with the actual file schema.
https://github.com/apache/spark/pull/21696
2. make parquet filter pushdown case insensitive.
https://github.com/apache/spark/pull/22197
3. make parquet column pruning case insensitive.
https://github.com/apache/spark/pull/22148
With these patches, the correctness bug in Spark 2.1 no longer exists, and the schema inference becomes unnecessary.
To be safe, this PR just changes the default value to NEVER_INFER, so that users can set it back to INFER_AND_SAVE. If we don't receive any bug reports for it, we can remove the related code in the next release.
## How was this patch tested?
existing tests
Closes#24041 from cloud-fan/infer.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
The docs describing RangeBetween & RowsBetween for pySpark & SparkR are not in sync with Spark description.
a. Edited PySpark and SparkR docs and made description same for both RangeBetween and RowsBetween
b. created executable examples in both pySpark and SparkR documentation
c. Locally tested the patch for scala Style checks and UT for checking no testcase failures
Closes#23946 from jagadesh-kiran/master.
Authored-by: Jagadesh Kiran <jagadesh.n@in.verizon.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This PR is a followup of https://github.com/apache/spark/pull/19559 .
It revisits https://issues.apache.org/jira/browse/SPARK-27117 , which should be an invalid use case according to the SQL standard.
`current_date/current_timestamp` are reserved keywords, if users want to access columns named `current_date/current_timestamp`, they should quote the name like ```select `current_date` from tbl```
If ansi mode is not enabled(which is the default), this PR won't introduce any changes.
## How was this patch tested?
a new test case
Closes#24039 from cloud-fan/current_datetime.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Currently in the grammar file, we have the joinType rule defined as following :
```
joinType
: INNER?
....
....
| LEFT SEMI
| LEFT? ANTI
;
```
The keyword LEFT is optional for ANTI join even though its not optional for SEMI join. When
using data frame interface join type "anti" is not allowed. The allowed types are "left_anti" or
"leftanti" for anti joins. ~~In this PR, i am making the LEFT keyword mandatory for ANTI joins so
it aligns better with the LEFT SEMI join in the grammar file and also the join types allowed from dataframe api.~~
This PR makes LEFT optional for SEMI join in .g4 and add "semi" and "anti" join types from dataframe.
~~I have not opened any JIRA for this as probably we may need some discussion to see if
we are going to address this or not.~~
## How was this patch tested?
Modified the join type tests.
Closes#23982 from dilipbiswal/join_fix.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This pr removed `UpdateAttributeNullability` from the optimizer because the same logic happens in the analyzer. See SPARK-26459(#23390) for more detailed discussion.
## How was this patch tested?
N/A
Closes#23508 from maropu/SPARK-21351.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This patch proposes to throw better exception with better error message when encoding to tuple which elements are more than 22.
**BEFORE**
```scala
scala> import org.apache.spark.sql.catalyst.encoders._
scala> val encoders = (0 to 22).map(_ => org.apache.spark.sql.Encoders.scalaInt.asInstanceOf[ExpressionEncoder[_]])
scala> ExpressionEncoder.tuple(encoders)
java.lang.ClassNotFoundException: scala.Tuple23
```
**AFTER**
```scala
scala> ExpressionEncoder.tuple(encoders)
java.lang.UnsupportedOperationException: Due to Scala's limited support of tuple, tuple with more than 22 elements are not supported.
```
## How was this patch tested?
Added UT.
Closes#24046 from HeartSaVioR/MINOR-throw-better-exception-for-tuple-more-than-22.
Authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan@gmail.com>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
To reuse some common logics for improving `Analyze` commands (See the description of `SPARK-25196` for details), this pr moved some functions from `AnalyzeColumnCommand` to `command/CommandUtils`. A follow-up pr will add code to extend `Analyze` commands for cached tables.
## How was this patch tested?
Existing tests.
Closes#22204 from maropu/SPARK-25196.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Before a Kafka consumer gets assigned with partitions, its offset will contain 0 partitions. However, runContinuous will still run and launch a Spark job having 0 partitions. In this case, there is a race that epoch may interrupt the query execution thread after `lastExecution.toRdd`, and either `epochEndpoint.askSync[Unit](StopContinuousExecutionWrites)` or the next `runContinuous` will get interrupted unintentionally.
To handle this case, this PR has the following changes:
- Clean up the resources in `queryExecutionThread.runUninterruptibly`. This may increase the waiting time of `stop` but should be minor because the operations here are very fast (just sending an RPC message in the same process and stopping a very simple thread).
- Clear the interrupted status at the end so that it won't impact the `runContinuous` call. We may clear the interrupted status set by `stop`, but it doesn't affect the query termination because `runActivatedStream` will check `state` and exit accordingly.
I also updated the clean up codes to make sure exceptions thrown from `epochEndpoint.askSync[Unit](StopContinuousExecutionWrites)` won't stop the clean up.
## How was this patch tested?
Jenkins
Closes#24034 from zsxwing/SPARK-27111.
Authored-by: Shixiong Zhu <zsxwing@gmail.com>
Signed-off-by: Shixiong Zhu <zsxwing@gmail.com>
## What changes were proposed in this pull request?
When reading parquet file with merging metastore schema and file schema, we should compare field names using uniform case. In current implementation, lowercase is used but one omission. And this patch fix it.
## How was this patch tested?
Unit test
Closes#24001 from codeborui/mergeSchemaBugFix.
Authored-by: CodeGod <>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Spark SQL performs whole-stage code generation to speed up query execution. There are two steps to it:
- Java source code is generated from the physical query plan on the driver. A single version of the source code is generated from a query plan, and sent to all executors.
- It's compiled to bytecode on the driver to catch compilation errors before sending to executors, but currently only the generated source code gets sent to the executors. The bytecode compilation is for fail-fast only.
- Executors receive the generated source code and compile to bytecode, then the query runs like a hand-written Java program.
In this model, there's an implicit assumption about the driver and executors being run on similar platforms. Some code paths accidentally embedded platform-dependent object layout information into the generated code, such as:
```java
Platform.putLong(buffer, /* offset */ 24, /* value */ 1);
```
This code expects a field to be at offset +24 of the `buffer` object, and sets a value to that field.
But whole-stage code generation generally uses platform-dependent information from the driver. If the object layout is significantly different on the driver and executors, the generated code can be reading/writing to wrong offsets on the executors, causing all kinds of data corruption.
One code pattern that leads to such problem is the use of `Platform.XXX` constants in generated code, e.g. `Platform.BYTE_ARRAY_OFFSET`.
Bad:
```scala
val baseOffset = Platform.BYTE_ARRAY_OFFSET
// codegen template:
s"Platform.putLong($buffer, $baseOffset, $value);"
```
This will embed the value of `Platform.BYTE_ARRAY_OFFSET` on the driver into the generated code.
Good:
```scala
val baseOffset = "Platform.BYTE_ARRAY_OFFSET"
// codegen template:
s"Platform.putLong($buffer, $baseOffset, $value);"
```
This will generate the offset symbolically -- `Platform.putLong(buffer, Platform.BYTE_ARRAY_OFFSET, value)`, which will be able to pick up the correct value on the executors.
Caveat: these offset constants are declared as runtime-initialized `static final` in Java, so they're not compile-time constants from the Java language's perspective. It does lead to a slightly increased size of the generated code, but this is necessary for correctness.
NOTE: there can be other patterns that generate platform-dependent code on the driver which is invalid on the executors. e.g. if the endianness is different between the driver and the executors, and if some generated code makes strong assumption about endianness, it would also be problematic.
## How was this patch tested?
Added a new test suite `WholeStageCodegenSparkSubmitSuite`. This test suite needs to set the driver's extraJavaOptions to force the driver and executor use different Java object layouts, so it's run as an actual SparkSubmit job.
Authored-by: Kris Mok <kris.mokdatabricks.com>
Closes#24031 from gatorsmile/cherrypickSPARK-27097.
Lead-authored-by: Kris Mok <kris.mok@databricks.com>
Co-authored-by: gatorsmile <gatorsmile@gmail.com>
Signed-off-by: DB Tsai <d_tsai@apple.com>
## What changes were proposed in this pull request?
Fix the typo (missing the s) in the class name (SparkSessionExtensions) in the doc for Spark conf spark.sql.extensions.
## How was this patch tested?
Verified by checking that the configuration doc shows up correctly in spark-shell using the SET -v
Closes#24020 from skambha/fixnametypo.
Authored-by: Sunitha Kambhampati <skambha@us.ibm.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This PR tries to correct spark-sql reserved keywords' position in list if they are not in alphabetical order.
In test suite some repeated words are removed. Also some comments are added for remind.
## How was this patch tested?
Existing unit tests.
Closes#23985 from SongYadong/sql_reserved_alphabet.
Authored-by: SongYadong <song.yadong1@zte.com.cn>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
1. Fix two typos
2. Remove useless imports in `CSVExprUtils.scala`
3. Add missing `override` annotation
## How was this patch tested?
test by existing uts
Closes#24000 from WangGuangxin/SPARK-27079.
Authored-by: wangguangxin.cn <wangguangxin.cn@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This adds a v2 API for adding new catalog plugins to Spark.
* Catalog implementations extend `CatalogPlugin` and are loaded via reflection, similar to data sources
* `Catalogs` loads and initializes catalogs using configuration from a `SQLConf`
* `CaseInsensitiveStringMap` is used to pass configuration to `CatalogPlugin` via `initialize`
Catalogs are configured by adding config properties starting with `spark.sql.catalog.(name)`. The name property must specify a class that implements `CatalogPlugin`. Other properties under the namespace (`spark.sql.catalog.(name).(prop)`) are passed to the provider during initialization along with the catalog name.
This replaces #21306, which will be implemented in two multiple parts: the catalog plugin system (this commit) and specific catalog APIs, like `TableCatalog`.
## How was this patch tested?
Added test suites for `CaseInsensitiveStringMap` and for catalog loading.
Closes#23915 from rdblue/SPARK-24252-add-v2-catalog-plugins.
Authored-by: Ryan Blue <blue@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
[SPARK-24638](https://issues.apache.org/jira/browse/SPARK-24638) adds support for Parquet file `StartsWith` predicate push down.
`InMemoryTable` can also support this feature.
This is an example to explain how it works, Imagine that the `id` column stored as below:
Partition ID | lowerBound | upperBound
-- | -- | --
p1 | '1' | '9'
p2 | '10' | '19'
p3 | '20' | '29'
p4 | '30' | '39'
p5 | '40' | '49'
A filter ```df.filter($"id".startsWith("2"))``` or ```id like '2%'```
then we substr lowerBound and upperBound:
Partition ID | lowerBound.substr(0, Length("2")) | upperBound.substr(0, Length("2"))
-- | -- | --
p1 | '1' | '9'
p2 | '1' | '1'
p3 | '2' | '2'
p4 | '3' | '3'
p5 | '4' | '4'
We can see that we only need to read `p1` and `p3`.
## How was this patch tested?
unit tests and benchmark tests
benchmark test result:
```
================================================================================================
Pushdown benchmark for StringStartsWith
================================================================================================
Java HotSpot(TM) 64-Bit Server VM 1.8.0_191-b12 on Mac OS X 10.12.6
Intel(R) Core(TM) i7-7820HQ CPU 2.90GHz
StringStartsWith filter: (value like '10%'): Best/Avg Time(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------
InMemoryTable Vectorized 12068 / 14198 1.3 767.3 1.0X
InMemoryTable Vectorized (Pushdown) 5457 / 8662 2.9 347.0 2.2X
Java HotSpot(TM) 64-Bit Server VM 1.8.0_191-b12 on Mac OS X 10.12.6
Intel(R) Core(TM) i7-7820HQ CPU 2.90GHz
StringStartsWith filter: (value like '1000%'): Best/Avg Time(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------
InMemoryTable Vectorized 5246 / 5355 3.0 333.5 1.0X
InMemoryTable Vectorized (Pushdown) 2185 / 2346 7.2 138.9 2.4X
Java HotSpot(TM) 64-Bit Server VM 1.8.0_191-b12 on Mac OS X 10.12.6
Intel(R) Core(TM) i7-7820HQ CPU 2.90GHz
StringStartsWith filter: (value like '786432%'): Best/Avg Time(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------
InMemoryTable Vectorized 5112 / 5312 3.1 325.0 1.0X
InMemoryTable Vectorized (Pushdown) 2292 / 2522 6.9 145.7 2.2X
```
Closes#23004 from wangyum/SPARK-26004.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Throw an exception if spark.sql.shuffle.partitions=0
This takes over https://github.com/apache/spark/pull/23835
## How was this patch tested?
Existing tests.
Closes#24008 from srowen/SPARK-24783.2.
Lead-authored-by: Sean Owen <sean.owen@databricks.com>
Co-authored-by: WindCanDie <491237260@qq.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This is follow-up PR which addresses review comment in PR for SPARK-27001:
https://github.com/apache/spark/pull/23908#discussion_r261511454
This patch proposes addressing primitive array type for serializer - instead of handling it to generic one, Spark now handles it efficiently as primitive array.
## How was this patch tested?
UT modified to include primitive array.
Closes#24015 from HeartSaVioR/SPARK-27001-FOLLOW-UP-java-primitive-array.
Authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Since Spark 2.2.0 ([SPARK-19678](https://issues.apache.org/jira/browse/SPARK-19678)), the below SQL changed from `broadcast join` to `sort merge join`:
```sql
-- small external table with incorrect statistics
CREATE EXTERNAL TABLE t1(c1 int)
ROW FORMAT SERDE 'org.apache.hadoop.hive.ql.io.parquet.serde.ParquetHiveSerDe'
WITH SERDEPROPERTIES (
'serialization.format' = '1'
)
STORED AS
INPUTFORMAT 'org.apache.hadoop.hive.ql.io.parquet.MapredParquetInputFormat'
OUTPUTFORMAT 'org.apache.hadoop.hive.ql.io.parquet.MapredParquetOutputFormat'
LOCATION 'file:///tmp/t1'
TBLPROPERTIES (
'rawDataSize'='-1', 'numFiles'='0', 'totalSize'='0', 'COLUMN_STATS_ACCURATE'='false', 'numRows'='-1'
);
-- big table
CREATE TABLE t2 (c1 int)
LOCATION 'file:///tmp/t2'
TBLPROPERTIES (
'rawDataSize'='23437737', 'numFiles'='12222', 'totalSize'='333442230', 'COLUMN_STATS_ACCURATE'='false', 'numRows'='443442223'
);
explain SELECT t1.c1 FROM t1 INNER JOIN t2 ON t1.c1 = t2.c1;
```
This pr add a test case for this behavior change.
## How was this patch tested?
unit tests
Closes#24003 from wangyum/SPARK-19678.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This pr adds 2 maven properties to help us upgrade the built-in Hive.
| Property Name | Default | In future |
| ------ | ------ | ------ |
| hive.classifier | (none) | core |
| hive.parquet.group | com.twitter | org.apache.parquet |
## How was this patch tested?
existing tests
Closes#23996 from wangyum/add_2_maven_properties.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
`CodeGenerator.updateAndGetCompilationStats` throws an unsupported exception for empty code size statistics. This pr added code to check if it is empty or not.
## How was this patch tested?
Pass Jenkins.
Closes#23947 from maropu/SPARK-21871-FOLLOWUP.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
This is a very minor pr to include the usage example to generate output for single test in SQLQueryTestSuite. I tried to deduce it from the existing example and ran into a scenario
where sbt is simply looping to run the same test over and over again. Here is the example
of running a single test.
```
build/sbt "~sql/test-only *SQLQueryTestSuite -- -z inline-table.sql"
```
I tried to generate the output for a single test by prepending `SPARK_GENERATE_GOLDEN_FILES=1` like following
```
SPARK_GENERATE_GOLDEN_FILES=1 build/sbt "~sql/test-only *SQLQueryTestSuite -- -z describe.sql"
```
In this case i found that sbt is looping trying to run describe.sql over and over again as we are running the test in on continuous mode (because of `~` prefix ) where it detects a change in
the generated result file which in turn triggers a build and test. I have included an example where
we don't run it in continuous mode when generating the output. Hopefully it saves other developers some time.
## How was this patch tested?
Verified manually in my dev setup.
Closes#23995 from dilipbiswal/dkb_sqlquerytest_usage.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
While I am migrating other data sources, I find that we should abstract the logic that:
1. converting safe `InternalRow`s into `UnsafeRow`s
2. appending partition values to the end of the result row if existed
This PR proposes to support handling partition values in file source v2 abstraction by adding a util class `PartitionReaderWithPartitionValues`.
## How was this patch tested?
Existing unit tests
Closes#23987 from gengliangwang/SPARK-27049.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This pr fix `NoSuchFieldError` when reading Hive materialized views from Hive 2.3.4.
How to reproduce:
Hive side:
```sql
CREATE TABLE materialized_view_tbl (key INT);
CREATE MATERIALIZED VIEW view_1 DISABLE REWRITE AS SELECT * FROM materialized_view_tbl;
```
Spark side:
```java
bin/spark-sql --conf spark.sql.hive.metastore.version=2.3.4 --conf spark.sql.hive.metastore.jars=maven
spark-sql> select * from view_1;
19/03/05 19:55:37 ERROR SparkSQLDriver: Failed in [select * from view_1]
java.lang.NoSuchFieldError: INDEX_TABLE
at org.apache.spark.sql.hive.client.HiveClientImpl.$anonfun$getTableOption$3(HiveClientImpl.scala:438)
at scala.Option.map(Option.scala:163)
at org.apache.spark.sql.hive.client.HiveClientImpl.$anonfun$getTableOption$1(HiveClientImpl.scala:370)
at org.apache.spark.sql.hive.client.HiveClientImpl.$anonfun$withHiveState$1(HiveClientImpl.scala:277)
at org.apache.spark.sql.hive.client.HiveClientImpl.liftedTree1$1(HiveClientImpl.scala:215)
at org.apache.spark.sql.hive.client.HiveClientImpl.retryLocked(HiveClientImpl.scala:214)
at org.apache.spark.sql.hive.client.HiveClientImpl.withHiveState(HiveClientImpl.scala:260)
at org.apache.spark.sql.hive.client.HiveClientImpl.getTableOption(HiveClientImpl.scala:368)
```
## How was this patch tested?
unit tests
Closes#23984 from wangyum/SPARK-24360.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
I would like to refactor `limit.scala` slightly and introduce common trait `LimitExec` for `CollectLimitExec` and `BaseLimitExec` (`LocalLimitExec` and `GlobalLimitExec`). This will allow to distinguish those operators from others, and to get the `limit` value without casting to concrete class.
## How was this patch tested?
by existing test suites.
Closes#23976 from MaxGekk/limit-exec.
Authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Currently, when the event reordering happens, especially onJobStart event come after onExecutionEnd event, SQL page in the UI displays weirdly.(for eg:test mentioned in JIRA and also this issue randomly occurs when the TPCDS query fails due to broadcast timeout etc.)
The reason is that, In the SQLAppstatusListener, we remove the liveExecutions entry once the execution ends. So, if a jobStart event come after that, then we create a new liveExecution entry corresponding to the execId. Eventually this will overwrite the kvstore and UI displays confusing entries.
## How was this patch tested?
Added UT, Also manually tested with the eventLog, provided in the jira, of the failed query.
Before fix:
After fix:
Closes#23939 from shahidki31/SPARK-27019.
Authored-by: Shahid <shahidki31@gmail.com>
Signed-off-by: Marcelo Vanzin <vanzin@cloudera.com>
## What changes were proposed in this pull request?
Before dropping database refresh the tables of that database, so as to refresh all cached entries associated with those tables.
We follow the same when dropping a table.
## How was this patch tested?
UT is added
Closes#23905 from Udbhav30/SPARK-24669.
Authored-by: Udbhav30 <u.agrawal30@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
In the PR, I propose to replace `System.currentTimeMillis()` by `Instant.now()` in the `CurrentTimestamp` expression. `Instant.now()` uses the best available clock in the system to take current time. See [JDK-8068730](https://bugs.openjdk.java.net/browse/JDK-8068730) for more details. In JDK8, `Instant.now()` provides results with millisecond resolution but starting from JDK9 resolution of results is increased up to microseconds.
## How was this patch tested?
The changes were tested by `DateTimeUtilsSuite` and by `DateFunctionsSuite`.
Closes#23945 from MaxGekk/current-time.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Removed unnecessary conversion of microseconds in `DateTimeUtils.timestampToString` to `java.sql.Timestamp` which aims to output fraction of seconds by casting it to string. This was replaced by special `TimestampFormatter` which appends the fraction formatter to `DateTimeFormatterBuilder`: `appendFraction(ChronoField.NANO_OF_SECOND, 0, 9, true)`. The former one means trailing zeros in second's fraction should be truncated while formatting.
## How was this patch tested?
By existing test suites like `CastSuite`, `DateTimeUtilsSuite`, `JDBCSuite`, and by new test in `TimestampFormatterSuite`.
Closes#23936 from MaxGekk/timestamp-to-string.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
We have benchmark of nested schema pruning, but only for Parquet. This adds similar benchmark for ORC. This is used with nested schema pruning of ORC.
## How was this patch tested?
Added test.
Closes#23955 from viirya/orc-nested-schema-pruning-benchmark.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
This pr tried to drop `Serializable` in `WalkedTypePath`.
## How was this patch tested?
Pass Jenkins.
Closes#23973 from maropu/SPARK-27001-FOLLOWUP.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
https://github.com/apache/spark/pull/12881 removed `HiveSessionHook`. But there are still some code related to `HiveSessionHook`.
This PR removes all `HiveSessionHook` related code.
## How was this patch tested?
manual tests
Closes#23957 from wangyum/SPARK-15095.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This PR optimizes `InSet` expressions for byte, short, integer, date types. It is a follow-up on PR #21442 from dbtsai.
`In` expressions are compiled into a sequence of if-else statements, which results in O\(n\) time complexity. `InSet` is an optimized version of `In`, which is supposed to improve the performance if all values are literals and the number of elements is big enough. However, `InSet` actually worsens the performance in many cases due to various reasons.
The main idea of this PR is to use Java `switch` statements to significantly improve the performance of `InSet` expressions for bytes, shorts, ints, dates. All `switch` statements are compiled into `tableswitch` and `lookupswitch` bytecode instructions. We will have O\(1\) time complexity if our case values are compact and `tableswitch` can be used. Otherwise, `lookupswitch` will give us O\(log n\).
Locally, I tried Spark `OpenHashSet` and primitive collections from `fastutils` in order to solve the boxing issue in `InSet`. Both options significantly decreased the memory consumption and `fastutils` improved the time compared to `HashSet` from Scala. However, the switch-based approach was still more than two times faster even on 500+ non-compact elements.
I also noticed that applying the switch-based approach on less than 10 elements gives a relatively minor improvement compared to the if-else approach. Therefore, I placed the switch-based logic into `InSet` and added a new config to track when it is applied. Even if we migrate to primitive collections at some point, the switch logic will be still faster unless the number of elements is really big. Another option is to have a separate `InSwitch` expression. However, this would mean we need to modify other places (e.g., `DataSourceStrategy`).
See [here](https://docs.oracle.com/javase/specs/jvms/se7/html/jvms-3.html#jvms-3.10) and [here](https://stackoverflow.com/questions/10287700/difference-between-jvms-lookupswitch-and-tableswitch) for more information.
This PR does not cover long values as Java `switch` statements cannot be used on them. However, we can have a follow-up PR with an approach similar to binary search.
## How was this patch tested?
There are new tests that verify the logic of the proposed optimization.
The performance was evaluated using existing benchmarks. This PR was also tested on an EC2 instance (OpenJDK 64-Bit Server VM 1.8.0_191-b12 on Linux 4.14.77-70.59.amzn1.x86_64, Intel(R) Xeon(R) CPU E5-2686 v4 2.30GHz).
## Notes
- [This link](http://hg.openjdk.java.net/jdk8/jdk8/langtools/file/30db5e0aaf83/src/share/classes/com/sun/tools/javac/jvm/Gen.java#l1153) contains source code that decides between `tableswitch` and `lookupswitch`. The logic was re-used in the benchmarks. See the `isLookupSwitch` method.
Closes#23171 from aokolnychyi/spark-26205.
Lead-authored-by: Anton Okolnychyi <aokolnychyi@apple.com>
Co-authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Clarify that text DataSource read/write, and RDD methods that read text, always use UTF-8 as they use Hadoop's implementation underneath. I think these are all the places that this needs a mention in the user-facing docs.
## How was this patch tested?
Doc tests.
Closes#23962 from srowen/SPARK-26016.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
When reading files with empty partition columns, we can avoid using JoinRow.
## How was this patch tested?
Existing unit tests.
Closes#23953 from gengliangwang/avoidJoinRow.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In master, `ElementAt` nullable is always true;
be1cadf16d/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/collectionOperations.scala (L1977)
But, If input is an array and foldable, we could make its nullability more precise.
This fix is based on SPARK-26637(#23566).
## How was this patch tested?
Added tests in `CollectionExpressionsSuite`.
Closes#23867 from maropu/SPARK-26965.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR adds support for pushing down LeftSemi and LeftAnti joins below operators such as Project, Aggregate, Window, Union etc. This is the initial piece of work that will be needed for
the subsequent work of moving the subquery rewrites to the beginning of optimization phase.
The larger PR is [here](https://github.com/apache/spark/pull/23211) . This PR addresses the comment at [link](https://github.com/apache/spark/pull/23211#issuecomment-445705922).
## How was this patch tested?
Added a new test suite LeftSemiAntiJoinPushDownSuite.
Closes#23750 from dilipbiswal/SPARK-19712-pushleftsemi.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Similar to `SaveMode`, we should remove streaming `OutputMode` from data source v2 API, and use operations that has clear semantic.
The changes are:
1. append mode: create `StreamingWrite` directly. By default, the `WriteBuilder` will create `Write` to append data.
2. complete mode: call `SupportsTruncate#truncate`. Complete mode means truncating all the old data and appending new data of the current epoch. `SupportsTruncate` has exactly the same semantic.
3. update mode: fail. The current streaming framework can't propagate the update keys, so v2 sinks are not able to implement update mode. In the future we can introduce a `SupportsUpdate` trait.
The behavior changes:
1. all the v2 sinks(foreach, console, memory, kafka, noop) don't support update mode. The fact is, previously all the v2 sinks implement the update mode wrong. None of them can really support it.
2. kafka sink doesn't support complete mode. The fact is, the kafka sink can only append data.
## How was this patch tested?
existing tests
Closes#23859 from cloud-fan/update.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
This PR introduces leveraging of subquery filters for partition pruning in file source.
Subquery expressions are not allowed to be used for partition pruning in `FileSourceStrategy` now, instead a `FilterExec` is added around the `FileSourceScanExec` to do the job.
This PR optimizes the process by allowing partition pruning subquery expressions as partition filters.
## How was this patch tested?
Added new UT and run existing UTs especially SPARK-25482 and SPARK-24085 related ones.
Closes#23802 from peter-toth/SPARK-26893.
Authored-by: Peter Toth <peter.toth@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Reduce work in HDFSMetadataLogSuite test to possibly de-flake it.
## How was this patch tested?
Existing tests
Closes#23937 from srowen/SPARK-27032.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This patch proposes refactoring `serializerFor` method between `ScalaReflection` and `JavaTypeInference`, being consistent with what we refactored for `deserializerFor` in #23854.
This patch also extracts the logic on recording walk type path since the logic is duplicated across `serializerFor` and `deserializerFor` with `ScalaReflection` and `JavaTypeInference`.
## How was this patch tested?
Existing tests.
Closes#23908 from HeartSaVioR/SPARK-27001.
Authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Use the maven plugin option `treatWarningsAsErrors` to make sure the warnings are treated as errors while generating the parser file. In the absence of it, we may inadvertently introducing problems while making grammar changes. Please refer to [PR-23897](https://github.com/apache/spark/pull/23897) to know more about the context.
## How was this patch tested?
We can use two ways to build Spark 1) sbt 2) Maven
This PR, we made a change to configure the maven antlr plugin to include a parameter that makes antlr4 report error on warning. However, when spark is built using sbt, we use the sbt antlr plugin which does not allow us to pass this additional compilation flag. More info on sbt-antlr plugin can be found at [link](https://github.com/ihji/sbt-antlr4/blob/master/src/main/scala/com/simplytyped/Antlr4Plugin.scala)
In summary, this fix only applicable when we use maven to build.
Closes#23925 from dilipbiswal/antlr_fix.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Currently we can use `df.printSchema` to discover the schema information for a query. We should have a way to describe the output schema of a query using SQL interface.
Example:
DESCRIBE SELECT * FROM desc_table
DESCRIBE QUERY SELECT * FROM desc_table
```SQL
spark-sql> create table desc_table (c1 int comment 'c1-comment', c2 decimal comment 'c2-comment', c3 string);
spark-sql> desc select * from desc_table;
c1 int c1-comment
c2 decimal(10,0) c2-comment
c3 string NULL
```
## How was this patch tested?
Added a new test under SQLQueryTestSuite and SparkSqlParserSuite
Closes#23883 from dilipbiswal/dkb_describe_query.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
I see the following new warning from ANTR4 after SPARK-26215 after it added `SCHEMA` keyword in the reserved/unreserved list. This is a minor PR to cleanup the warning.
```
WARNING] warning(125): org/apache/spark/sql/catalyst/parser/SqlBase.g4:784:90: implicit definition of token SCHEMA in parser
[WARNING] .../apache/spark/org/apache/spark/sql/catalyst/parser/SqlBase.g4 [784:90]: implicit definition of token SCHEMA in parser
```
## How was this patch tested?
Manually built catalyst after the fix to verify
Closes#23897 from dilipbiswal/minor_parser_token.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Redundant `get` when getting a value from `Map` given a key.
## How was this patch tested?
N/A
Closes#23901 from 10110346/removegetfrommap.
Authored-by: liuxian <liu.xian3@zte.com.cn>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to add new Catalyst type converter for `DateType`. It should be able to convert `java.time.LocalDate` to/from `DateType`.
Main motivations for the changes:
- Smoothly support Java 8 time API
- Avoid inconsistency of calendars used inside of Spark 3.0 (Proleptic Gregorian calendar) and `java.sql.Date` (hybrid calendar - Julian + Gregorian).
- Make conversion independent from current system timezone.
By default, Spark converts values of `DateType` to `java.sql.Date` instances but the SQL config `spark.sql.datetime.java8API.enabled` can change the behavior. If it is set to `true`, Spark uses `java.time.LocalDate` as external type for `DateType`.
## How was this patch tested?
Added new testes to `CatalystTypeConvertersSuite` to check conversion of `DateType` to/from `java.time.LocalDate`, `JavaUDFSuite`/ `UDFSuite` to test usage of `LocalDate` type in Scala/Java UDFs.
Closes#23913 from MaxGekk/date-localdate.
Authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Continuous processing is waiting on epochs which are not yet complete (for example one partition is not making progress) and stores pending items in queues. These queues are unbounded and can consume up all the memory easily. In this PR I've added `spark.sql.streaming.continuous.epochBacklogQueueSize` configuration possibility to make them bounded. If the related threshold reached then the query will stop with `IllegalStateException`.
## How was this patch tested?
Existing + additional unit tests.
Closes#23156 from gaborgsomogyi/SPARK-24063.
Authored-by: Gabor Somogyi <gabor.g.somogyi@gmail.com>
Signed-off-by: Marcelo Vanzin <vanzin@cloudera.com>
## What changes were proposed in this pull request?
Comparing whether Boolean expression is equal to true is redundant
For example:
The datatype of `a` is boolean.
Before:
if (a == true)
After:
if (a)
## How was this patch tested?
N/A
Closes#23884 from 10110346/simplifyboolean.
Authored-by: liuxian <liu.xian3@zte.com.cn>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to add new Catalyst type converter for `TimestampType`. It should be able to convert `java.time.Instant` to/from `TimestampType`.
Main motivations for the changes:
- Smoothly support Java 8 time API
- Avoid inconsistency of calendars used inside of Spark 3.0 (Proleptic Gregorian calendar) and `java.sql.Timestamp` (hybrid calendar - Julian + Gregorian).
- Make conversion independent from current system timezone.
By default, Spark converts values of `TimestampType` to `java.sql.Timestamp` instances but the SQL config `spark.sql.catalyst.timestampType` can change the behavior. It accepts two values `Timestamp` (default) and `Instant`. If the former one is set, Spark returns `java.time.Instant` instances for timestamp values.
## How was this patch tested?
Added new testes to `CatalystTypeConvertersSuite` to check conversion of `TimestampType` to/from `java.time.Instant`.
Closes#23811 from MaxGekk/timestamp-instant.
Lead-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
WIth the following file structure:
```
/tmp/data
└── a=5
```
In the previous release:
```
scala> spark.read.schema("A int, ID long").parquet("/tmp/data/").printSchema
root
|-- ID: long (nullable = true)
|-- A: integer (nullable = true)
```
While in current code:
```
scala> spark.read.schema("A int, ID long").parquet("/tmp/data/").printSchema
root
|-- ID: long (nullable = true)
|-- a: integer (nullable = true)
```
We can see that the partition column name `a` is different from `A` as user specifed. This PR is to fix the case and make it more user-friendly.
## How was this patch tested?
Unit test
Closes#23894 from gengliangwang/fileIndexSchema.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Spark expects the type of column and the type of matching field is same when deserializing to Object, but Spark hasn't actually restrict it (at least for Java bean encoder) and some users just do it and experience undefined behavior (in SPARK-22000, Spark throws compilation failure on generated code because it calls `.toString()` against primitive type.
It doesn't produce error in Scala side because `ScalaReflection.deserializerFor` properly inject Upcast if necessary. This patch proposes applying same thing to `JavaTypeInference.deserializerFor` as well.
Credit to srowen, maropu, and cloud-fan since they provided various approaches to solve this.
## How was this patch tested?
Added UT which query is slightly modified based on sample code in attachment on JIRA issue.
Closes#23854 from HeartSaVioR/SPARK-22000.
Authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR targets to add vectorized `dapply()` in R, Arrow optimization.
This can be tested as below:
```bash
$ ./bin/sparkR --conf spark.sql.execution.arrow.enabled=true
```
```r
df <- createDataFrame(mtcars)
collect(dapply(df, function(rdf) { data.frame(rdf$gear + 1) }, structType("gear double")))
```
### Requirements
- R 3.5.x
- Arrow package 0.12+
```bash
Rscript -e 'remotes::install_github("apache/arrowapache-arrow-0.12.0", subdir = "r")'
```
**Note:** currently, Arrow R package is not in CRAN. Please take a look at ARROW-3204.
**Note:** currently, Arrow R package seems not supporting Windows. Please take a look at ARROW-3204.
### Benchmarks
**Shall**
```bash
sync && sudo purge
./bin/sparkR --conf spark.sql.execution.arrow.enabled=false --driver-memory 4g
```
```bash
sync && sudo purge
./bin/sparkR --conf spark.sql.execution.arrow.enabled=true --driver-memory 4g
```
**R code**
```r
rdf <- read.csv("500000.csv")
df <- cache(createDataFrame(rdf))
count(df)
test <- function() {
options(digits.secs = 6) # milliseconds
start.time <- Sys.time()
count(cache(dapply(df, function(rdf) { rdf }, schema(df))))
end.time <- Sys.time()
time.taken <- end.time - start.time
print(time.taken)
}
test()
```
**Data (350 MB):**
```r
object.size(read.csv("500000.csv"))
350379504 bytes
```
"500000 Records" http://eforexcel.com/wp/downloads-16-sample-csv-files-data-sets-for-testing/
**Results**
```
Time difference of 13.42037 mins
```
```
Time difference of 30.64156 secs
```
The performance improvement was around **2627%**.
### Limitations
- For now, Arrow optimization with R does not support when the data is `raw`, and when user explicitly gives float type in the schema. They produce corrupt values.
- Due to ARROW-4512, it cannot send and receive batch by batch. It has to send all batches in Arrow stream format at once. It needs improvement later.
## How was this patch tested?
Unit tests were added, and manually tested.
Closes#23787 from HyukjinKwon/SPARK-26830-1.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
In SPARK-26619, we make change to prune unnecessary individual serializers when serializing objects. This is extension to SPARK-26619. We can further prune nested fields from object serializers if they are not used.
For example, in following query, we only use one field in a struct column:
```scala
val data = Seq((("a", 1), 1), (("b", 2), 2), (("c", 3), 3))
val df = data.toDS().map(t => (t._1, t._2 + 1)).select("_1._1")
```
So, instead of having a serializer to create a two fields struct, we can prune unnecessary field from it. This is what this PR proposes to do.
In order to make this change conservative and safer, a SQL config is added to control it. It is disabled by default.
TODO: Support to prune nested fields inside MapType's key and value.
## How was this patch tested?
Added tests.
Closes#23740 from viirya/nested-pruning-serializer-2.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to refactor existing code related to date/time conversions, and replace constants like `1000` and `1000000` by `DateTimeUtils` constants and transformation functions from `java.util.concurrent.TimeUnit._`.
## How was this patch tested?
The changes are tested by existing test suites.
Closes#23878 from MaxGekk/magic-time-constants.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In data source v2, if the data source scan implemented `SupportsReportStatistics`. `DataSourceV2Relation` should respect the row count reported by the data source.
## How was this patch tested?
New UT test.
Closes#23853 from ConeyLiu/report-row-count.
Authored-by: Xianyang Liu <xianyang.liu@intel.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This is a followup PR to resolve comment: https://github.com/apache/spark/pull/23601#pullrequestreview-207101115
When Spark writes DataFrame with "overwrite" mode, it deletes the output path before actual writes. To safely handle the case that the output path doesn't exist, it is suggested to follow the V1 code by checking the existence.
## How was this patch tested?
Apply https://github.com/apache/spark/pull/23836 and run unit tests
Closes#23889 from gengliangwang/checkFileBeforeOverwrite.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
Prior to this patch, all DataFrameReader.csv() calls would collect the first
line from the CSV input iterator. This is done to allow schema inference from the
header row.
However when schema is already specified this is a wasteful operation. It results
in an unncessary compute step on the first partition. This can be expensive if
the CSV itself is expensive to generate (e.g. it's the product of a long-running
external pipe()).
This patch short-circuits the first-line collection in DataFrameReader.csv() when
schema is specified. Thereby improving CSV read performance in certain cases.
## What changes were proposed in this pull request?
Short-circuiting DataFrameReader.csv() first-line read when schema is user-specified.
## How was this patch tested?
Compiled and tested against several CSV datasets.
Closes#23830 from Mister-Meeseeks/master.
Authored-by: Douglas R Colkitt <douglas.colkitt@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
The `DateTimeUtils.toMillis` can produce inaccurate result for some negative values (timestamps before epoch). The error can be around 1ms. In the PR, I propose to use `Math.floorDiv` in casting microseconds to milliseconds, and milliseconds to days since epoch.
## How was this patch tested?
Added new test to `DateTimeUtilsSuite`, and tested by `CastSuite` as well.
Closes#23815 from MaxGekk/micros-to-millis.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to convert time zone string to `TimeZone` by converting it to `ZoneId` which uses `ZoneOffset` internally. The `ZoneOffset` class of JDK 8 has a cache already: http://hg.openjdk.java.net/jdk8/jdk8/jdk/file/687fd7c7986d/src/share/classes/java/time/ZoneOffset.java#l205 . In this way, there is no need to support cache of time zones in Spark.
The PR removes `computedTimeZones` from `DateTimeUtils`, and uses `ZoneId.of` to convert time zone id string to `ZoneId` and to `TimeZone` at the end.
## How was this patch tested?
The changes were tested by
Closes#23812 from MaxGekk/timezone-cache.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This pr targeted to define reserved/non-reserved keywords for Spark SQL based on the ANSI SQL standards and the other database-like systems (e.g., PostgreSQL). We assume that they basically follow the ANSI SQL-2011 standard, but it is slightly different between each other. Therefore, this pr documented all the keywords in `docs/sql-reserved-and-non-reserved-key-words.md`.
NOTE: This pr only added a small set of keywords as reserved ones and these keywords are reserved in all the ANSI SQL standards (SQL-92, SQL-99, SQL-2003, SQL-2008, SQL-2011, and SQL-2016) and PostgreSQL. This is because there is room to discuss which keyword should be reserved or not, .e.g., interval units (day, hour, minute, second, ...) are reserved in the ANSI SQL standards though, they are not reserved in PostgreSQL. Therefore, we need more researches about the other database-like systems (e.g., Oracle Databases, DB2, SQL server) in follow-up activities.
References:
- The reserved/non-reserved SQL keywords in the ANSI SQL standards: https://developer.mimer.com/wp-content/uploads/2018/05/Standard-SQL-Reserved-Words-Summary.pdf
- SQL Key Words in PostgreSQL: https://www.postgresql.org/docs/current/sql-keywords-appendix.html
## How was this patch tested?
Added tests in `TableIdentifierParserSuite`.
Closes#23259 from maropu/SPARK-26215-WIP.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
Per https://github.com/apache/spark/pull/23768/files#r259083019 the last change to this line here caused the 2.11 build to fail. It's worked around by making `_cachedColumnBuffers` a field, as it was never set by callers to anything other than its default of null.
## How was this patch tested?
Existing tests.
Closes#23864 from srowen/SPARK-26851.2.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
Add assert to verify predicate class in ParquetFilterSuite
## How was this patch tested?
Ran ParquetFilterSuite, tests passed
Closes#23855 from nandorKollar/SPARK-26930.
Lead-authored-by: nandorKollar <nandorKollar@users.noreply.github.com>
Co-authored-by: Hyukjin Kwon <gurwls223@gmail.com>
Co-authored-by: Nandor Kollar <nkollar@cloudera.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Apache Spark uses the predefined `Float.NaN` and `Double.NaN` for NaN values, but there exists more NaN values with different binary presentations.
```scala
scala> java.nio.ByteBuffer.allocate(4).putFloat(Float.NaN).array
res1: Array[Byte] = Array(127, -64, 0, 0)
scala> val x = java.lang.Float.intBitsToFloat(-6966608)
x: Float = NaN
scala> java.nio.ByteBuffer.allocate(4).putFloat(x).array
res2: Array[Byte] = Array(-1, -107, -78, -80)
```
Since users can have these values, `RandomDataGenerator` generates these NaN values. However, this causes `checkEvaluationWithUnsafeProjection` failures due to the difference between `UnsafeRow` binary presentation. The following is the UT failure instance. This PR aims to fix this UT flakiness.
- https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/102528/testReport/
## How was this patch tested?
Pass the Jenkins with the newly added test cases.
Closes#23851 from dongjoon-hyun/SPARK-26950.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
The function of the method named verifyTableProperties is
`If the given table properties contains datasource properties, throw an exception. We will do this check when create or alter a table, i.e. when we try to write table metadata to Hive metastore.`
But the message of AnalysisException in verifyTableProperties contains one typo and one unsuited word.
So I change the exception from
`Cannot persistent ${table.qualifiedName} into hive metastore`
to
`Cannot persist ${table.qualifiedName} into Hive metastore`
## How was this patch tested?
Please review http://spark.apache.org/contributing.html before opening a pull request.
Closes#23574 from beliefer/incorrect-analysis-exception.
Authored-by: gengjiaan <gengjiaan@360.cn>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This adds `NestedSchemaPruningBenchmark` to show the nested schema pruning performance clearly and to verify new PR's performance benefit and to prevent the future performance degradation.
## How was this patch tested?
Manually run the benchmark.
```
SPARK_GENERATE_BENCHMARK_FILES=1 build/sbt "sql/test:runMain org.apache.spark.sql.execution.benchmark.NestedSchemaPruningBenchmark"
```
Closes#23862 from dongjoon-hyun/SPARK-NESTED-SCHEMA-PRUNING-BM.
Lead-authored-by: Dongjoon Hyun <dhyun@apple.com>
Co-authored-by: DB Tsai <d_tsai@apple.com>
Signed-off-by: DB Tsai <d_tsai@apple.com>
## What changes were proposed in this pull request?
Related to SPARK-26617 and SPARK-26548. There was a new location we found where we were still seeing the locks. We traced it to the recacheByCondition function. In this PR I have changed that function so that the writeLock is not held while the condition is being evaluated.
cloud-fan & gatorsmile This is a further tweak to the other cache PRs we have done (which have helped us tremendously).
## How was this patch tested?
Has been tested on a live system where the blocking was causing major issues and it is working well.
CacheManager has no explicit unit test but is used in many places internally as part of the SharedState.
Closes#23833 from DaveDeCaprio/cache-lock-recacheByCondition.
Lead-authored-by: Dave DeCaprio <daved@alum.mit.edu>
Co-authored-by: David DeCaprio <daved@alum.mit.edu>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
When a user specifies a checkpoint location or a file sink output using a path containing special chars that need to be escaped in a path, the streaming query will store checkpoint and file sink metadata in a wrong place. In this PR, I uploaded a checkpoint that was generated by the following codes using Spark 2.4.0 to show this issue:
```
implicit val s = spark.sqlContext
val input = org.apache.spark.sql.execution.streaming.MemoryStream[Int]
input.addData(1, 2, 3)
val q = input.toDF.writeStream.format("parquet").option("checkpointLocation", ".../chk %#chk").start(".../output %#output")
q.stop()
```
Here is the structure of the directory:
```
sql/core/src/test/resources/structured-streaming/escaped-path-2.4.0
├── chk%252520%252525%252523chk
│ ├── commits
│ │ └── 0
│ ├── metadata
│ └── offsets
│ └── 0
├── output %#output
│ └── part-00000-97f675a2-bb82-4201-8245-05f3dae4c372-c000.snappy.parquet
└── output%20%25%23output
└── _spark_metadata
└── 0
```
In this checkpoint, the user specified checkpoint location is `.../chk %#chk` but the real path to store the checkpoint is `.../chk%252520%252525%252523chk` (this is generated by escaping the original path three times). The user specified output path is `.../output %#output` but the path to store `_spark_metadata` is `.../output%20%25%23output/_spark_metadata` (this is generated by escaping the original path once). The data files are still in the correct path (such as `.../output %#output/part-00000-97f675a2-bb82-4201-8245-05f3dae4c372-c000.snappy.parquet`).
This checkpoint will be used in unit tests in this PR.
The fix is just simply removing improper `Path.toUri` calls to fix the issue.
However, as the user may not read the release note and is not aware of this checkpoint location change, if they upgrade Spark without moving checkpoint to the new location, their query will just start from the scratch. In order to not surprise the users, this PR also adds a check to **detect the impacted paths and throws an error** to include the migration guide. This check can be turned off by an internal sql conf `spark.sql.streaming.checkpoint.escapedPathCheck.enabled`. Here are examples of errors that will be reported:
- Streaming checkpoint error:
```
Error: we detected a possible problem with the location of your checkpoint and you
likely need to move it before restarting this query.
Earlier version of Spark incorrectly escaped paths when writing out checkpoints for
structured streaming. While this was corrected in Spark 3.0, it appears that your
query was started using an earlier version that incorrectly handled the checkpoint
path.
Correct Checkpoint Directory: /.../chk %#chk
Incorrect Checkpoint Directory: /.../chk%252520%252525%252523chk
Please move the data from the incorrect directory to the correct one, delete the
incorrect directory, and then restart this query. If you believe you are receiving
this message in error, you can disable it with the SQL conf
spark.sql.streaming.checkpoint.escapedPathCheck.enabled.
```
- File sink error (`_spark_metadata`):
```
Error: we detected a possible problem with the location of your "_spark_metadata"
directory and you likely need to move it before restarting this query.
Earlier version of Spark incorrectly escaped paths when writing out the
"_spark_metadata" directory for structured streaming. While this was corrected in
Spark 3.0, it appears that your query was started using an earlier version that
incorrectly handled the "_spark_metadata" path.
Correct "_spark_metadata" Directory: /.../output %#output/_spark_metadata
Incorrect "_spark_metadata" Directory: /.../output%20%25%23output/_spark_metadata
Please move the data from the incorrect directory to the correct one, delete the
incorrect directory, and then restart this query. If you believe you are receiving
this message in error, you can disable it with the SQL conf
spark.sql.streaming.checkpoint.escapedPathCheck.enabled.
```
## How was this patch tested?
The new unit tests.
Closes#23733 from zsxwing/path-fix.
Authored-by: Shixiong Zhu <zsxwing@gmail.com>
Signed-off-by: Shixiong Zhu <zsxwing@gmail.com>
## What changes were proposed in this pull request?
In the PR, I propose to simplify timestamp truncation to quarter of year by using *java.time* API directly. The `LocalDate` instance can be truncation to quarter timestamp via adjusting by chrono field `IsoFields.DAY_OF_QUARTER`.
## How was this patch tested?
This was checked by existing test suite - `DateTimeUtilsSuite`.
Closes#23808 from MaxGekk/date-quarter-of-year.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This happens in a schema evolution use case only when a user specifies the schema manually and use non-vectorized ORC deserializer code path.
There is a bug in `OrcDeserializer.scala` that results in `null`s being set at the wrong column position, and for state from previous records to remain uncleared in next records. There are more details for when exactly the bug gets triggered and what the outcome is in the [JIRA issue](https://jira.apache.org/jira/browse/SPARK-26859).
The high-level summary is that this bug results in severe data correctness issues, but fortunately the set of conditions to expose the bug are complicated and make the surface area somewhat small.
This change fixes the problem and adds a respective test.
## How was this patch tested?
Pass the Jenkins with the newly added test cases.
Closes#23766 from IvanVergiliev/fix-orc-deserializer.
Lead-authored-by: Ivan Vergiliev <ivan.vergiliev@gmail.com>
Co-authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR targets to support Arrow optimization for conversion from Spark DataFrame to R DataFrame.
Like PySpark side, it falls back to non-optimization code path when it's unable to use Arrow optimization.
This can be tested as below:
```bash
$ ./bin/sparkR --conf spark.sql.execution.arrow.enabled=true
```
```r
collect(createDataFrame(mtcars))
```
### Requirements
- R 3.5.x
- Arrow package 0.12+
```bash
Rscript -e 'remotes::install_github("apache/arrowapache-arrow-0.12.0", subdir = "r")'
```
**Note:** currently, Arrow R package is not in CRAN. Please take a look at ARROW-3204.
**Note:** currently, Arrow R package seems not supporting Windows. Please take a look at ARROW-3204.
### Benchmarks
**Shall**
```bash
sync && sudo purge
./bin/sparkR --conf spark.sql.execution.arrow.enabled=false --driver-memory 4g
```
```bash
sync && sudo purge
./bin/sparkR --conf spark.sql.execution.arrow.enabled=true --driver-memory 4g
```
**R code**
```r
df <- cache(createDataFrame(read.csv("500000.csv")))
count(df)
test <- function() {
options(digits.secs = 6) # milliseconds
start.time <- Sys.time()
collect(df)
end.time <- Sys.time()
time.taken <- end.time - start.time
print(time.taken)
}
test()
```
**Data (350 MB):**
```r
object.size(read.csv("500000.csv"))
350379504 bytes
```
"500000 Records" http://eforexcel.com/wp/downloads-16-sample-csv-files-data-sets-for-testing/
**Results**
```
Time difference of 221.32014 secs
```
```
Time difference of 15.51145 secs
```
The performance improvement was around **1426%**.
### Limitations:
- For now, Arrow optimization with R does not support when the data is `raw`, and when user explicitly gives float type in the schema. They produce corrupt values. In this case, we decide to fall back to non-optimization code path.
- Due to ARROW-4512, it cannot send and receive batch by batch. It has to send all batches in Arrow stream format at once. It needs improvement later.
## How was this patch tested?
Existing tests related with Arrow optimization cover this change. Also, manually tested.
Closes#23760 from HyukjinKwon/SPARK-26762.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This is a followup PR for #21149.
New way uses unsafeRow.hashCode() as hash value in HashAggregate.
The unsafe row has [null bit set] etc., so the hash should be different from shuffle hash, and then we don't need a special seed.
## How was this patch tested?
UTs.
Closes#23821 from yucai/unsafe_hash.
Authored-by: yucai <yyu1@ebay.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This proposes adding a note on `QueryExecution.toRdd` regarding Spark's internal optimization callers would need to indicate.
## How was this patch tested?
This patch is a documentation change.
Closes#23822 from HeartSaVioR/MINOR-doc-add-note-query-execution-to-rdd.
Authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Continue the API refactor for streaming write, according to the [doc](https://docs.google.com/document/d/1vI26UEuDpVuOjWw4WPoH2T6y8WAekwtI7qoowhOFnI4/edit?usp=sharing).
The major changes:
1. rename `StreamingWriteSupport` to `StreamingWrite`
2. add `WriteBuilder.buildForStreaming`
3. update existing sinks, to move the creation of `StreamingWrite` to `Table`
## How was this patch tested?
existing tests
Closes#23702 from cloud-fan/stream-write.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
This PR partially revert SPARK-26744.
60caa92dea and 4dce45a599 were merged at similar time range independently. So the test failures were not caught.
- 60caa92dea happened to add a schema reading logic in writing path for overwrite mode as well.
- 4dce45a599 added some tests with overwrite modes with migrated ORC v2.
And the tests looks starting to fail.
I guess the discussion won't be short (see https://github.com/apache/spark/pull/23606#discussion_r257675083) and this PR proposes to disable the tests added at 4dce45a599 to unblock other PRs for now.
## How was this patch tested?
Existing tests.
Closes#23828 from HyukjinKwon/SPARK-26744.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This adds two logical plans that implement the ReplaceData operation from the [logical plans SPIP](https://docs.google.com/document/d/1gYm5Ji2Mge3QBdOliFV5gSPTKlX4q1DCBXIkiyMv62A/edit?ts=5a987801#heading=h.m45webtwxf2d). These two plans will be used to implement Spark's `INSERT OVERWRITE` behavior for v2.
Specific changes:
* Add `SupportsTruncate`, `SupportsOverwrite`, and `SupportsDynamicOverwrite` to DSv2 write API
* Add `OverwriteByExpression` and `OverwritePartitionsDynamic` plans (logical and physical)
* Add new plans to DSv2 write validation rule `ResolveOutputRelation`
* Refactor `WriteToDataSourceV2Exec` into trait used by all DSv2 write exec nodes
## How was this patch tested?
* The v2 analysis suite has been updated to validate the new overwrite plans
* The analysis suite for `OverwriteByExpression` checks that the delete expression is resolved using the table's columns
* Existing tests validate that overwrite exec plan works
* Updated existing v2 test because schema is used to validate overwrite
Closes#23606 from rdblue/SPARK-26666-add-overwrite.
Authored-by: Ryan Blue <blue@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This pr just removed workaround for 2.2.0 and 2.1.x in HiveExternalCatalogVersionsSuite.
## How was this patch tested?
Pass the Jenkins.
Closes#23817 from maropu/SPARK-26607-FOLLOWUP.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
The previous strategy for comparing Maps leveraged sorting (key, value) tuples by their _.toString. However, the _.toString representation of an arrays has nothing to do with it's content. If a map has array keys, it's (key, value) pairs would be compared with other maps essentially at random. This could results in false negatives in tests.
This changes first compares keys together to find the matching ones, and then compares associated values.
## How was this patch tested?
New unit test added.
Closes#23789 from ala/compare-map.
Authored-by: Ala Luszczak <ala@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
The maintenance release of `branch-2.3` (v2.3.3) vote passed, so this issue updates PROCESS_TABLES.testingVersions in HiveExternalCatalogVersionsSuite
## How was this patch tested?
Pass the Jenkins.
Closes#23807 from maropu/SPARK-26897.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
The file source has a schema validation feature, which validates 2 schemas:
1. the user-specified schema when reading.
2. the schema of input data when writing.
If a file source doesn't support the schema, we can fail the query earlier.
This PR is to implement the same feature in the `FileDataSourceV2` framework. Comparing to `FileFormat`, `FileDataSourceV2` has multiple layers. The API is added in two places:
1. Read path: the table schema is determined in `TableProvider.getTable`. The actual read schema can be a subset of the table schema. This PR proposes to validate the actual read schema in `FileScan`.
2. Write path: validate the actual output schema in `FileWriteBuilder`.
## How was this patch tested?
Unit test
Closes#23714 from gengliangwang/schemaValidationV2.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This is a followup PR to fix two issues in #23601:
1. the class `FileWriterFactory` contains `conf: SerializableConfiguration` as a member, which is duplicated with `WriteJobDescription. serializableHadoopConf `. By removing it we can reduce the broadcast task binary size by around 70KB
2. The test suite `OrcV1QuerySuite`/`OrcV1QuerySuite`/`OrcV1PartitionDiscoverySuite` didn't change the configuration `SQLConf.USE_V1_SOURCE_WRITER_LIST` to `"orc"`. We should set the conf.
## How was this patch tested?
Unit test
Closes#23800 from gengliangwang/reduceWriteTaskSize.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
`HadoopDelegationTokenProvider` has basically the same functionality just like `ServiceCredentialProvider` so the interfaces can be merged.
`YARNHadoopDelegationTokenManager` now loads `ServiceCredentialProvider`s in one step. The drawback of this if one provider fails all others are not loaded. `HadoopDelegationTokenManager` loads `HadoopDelegationTokenProvider`s independently so it provides more robust behaviour.
In this PR I've I've made the following changes:
* Deleted `YARNHadoopDelegationTokenManager` and `ServiceCredentialProvider`
* Made `HadoopDelegationTokenProvider` a `DeveloperApi`
## How was this patch tested?
Existing unit tests.
Closes#23686 from gaborgsomogyi/SPARK-26772.
Authored-by: Gabor Somogyi <gabor.g.somogyi@gmail.com>
Signed-off-by: Marcelo Vanzin <vanzin@cloudera.com>
## What changes were proposed in this pull request?
In https://github.com/apache/spark/pull/23383, the file source V2 framework is implemented. In the PR, `FileIndex` is created as a member of `FileTable`, so that we can implement partition pruning like 0f9fcabb4a in the future(As data source V2 catalog is under development, partition pruning is removed from the PR)
However, after write path of file source V2 is implemented, I find that a simple write will create an unnecessary `FileIndex`, which is required by `FileTable`. This is a sort of regression. And we can see there is a warning message when writing to ORC files
```
WARN InMemoryFileIndex: The directory file:/tmp/foo was not found. Was it deleted very recently?
```
This PR is to make `FileIndex` as a lazy value in `FileTable`, so that we can avoid creating unnecessary `FileIndex` in the write path.
## How was this patch tested?
Existing unit test
Closes#23774 from gengliangwang/moveFileIndexInV2.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This is a fix for https://github.com/apache/spark/pull/23524, which did not stop cost-based join reorder when the CostBasedJoinReorder rule recurses down the tree and applies join reorder for nested joins with hints.
The issue had not been detected by the existing tests because CBO is disabled by default.
## How was this patch tested?
Enabled CBO for JoinHintSuite.
Closes#23759 from maryannxue/spark-26840.
Lead-authored-by: maryannxue <maryannxue@apache.org>
Co-authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
These builtin typed aggregate functions are not very useful:
1. users can just call the untyped ones and turn the resulting dataframe to a dataset. It has better performance.
2. the typed aggregate functions have subtle different behaviors regarding empty input.
I think we should get rid of these builtin typed agg functions and suggest users to use the untyped ones.
However, these functions are still useful as a demo of the `Aggregator` API, so I copied them to the example module.
## How was this patch tested?
N/A
Closes#23763 from cloud-fan/example.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
Updates FileFormatWriter to create a consistent Hadoop Job ID for a write.
## How was this patch tested?
Existing tests for regressions.
Closes#23777 from rdblue/SPARK-26873-fix-file-format-writer-job-ids.
Authored-by: Ryan Blue <blue@apache.org>
Signed-off-by: Marcelo Vanzin <vanzin@cloudera.com>
## What changes were proposed in this pull request?
This PR is a correctness fix in `HashAggregateExec` code generation. It forces evaluation of result expressions before calling `consume()` to avoid multiple executions.
This PR fixes a use case where an aggregate is nested into a broadcast join and appears on the "stream" side. The issue is that Broadcast join generates it's own loop. And without forcing evaluation of `resultExpressions` of `HashAggregateExec` before the join's loop these expressions can be executed multiple times giving incorrect results.
## How was this patch tested?
New UT was added.
Closes#23731 from peter-toth/SPARK-26572.
Authored-by: Peter Toth <peter.toth@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
```java
public class SqlDemo {
public static void main(final String[] args) throws Exception {
SparkConf conf = new SparkConf().setAppName("spark-sql-demo");
JavaSparkContext sc = new JavaSparkContext(conf);
SparkSession ss = SparkSession.builder().enableHiveSupport().getOrCreate();
ss.sql("show databases").show();
}
}
```
Before https://issues.apache.org/jira/browse/SPARK-20946, the demo above point to the right hive metastore if the hive-site.xml is present. But now it can only point to the default in-memory one.
Catalog is now as a variable shared across SparkSessions, it is instantiated with SparkContext's conf. After https://issues.apache.org/jira/browse/SPARK-20946, Session level configs are not pass to SparkContext's conf anymore, so the enableHiveSupport API takes no affect on the catalog instance.
You can set spark.sql.catalogImplementation=hive application wide to solve the problem, or never create a sc before you call SparkSession.builder().enableHiveSupport().getOrCreate()
Here we respect the SparkSession level configuration at the first time to generate catalog within SharedState
## How was this patch tested?
1. add ut
2. manually
```scala
test("enableHiveSupport has right to determine the catalog while using an existing sc") {
val conf = new SparkConf().setMaster("local").setAppName("SharedState Test")
val sc = SparkContext.getOrCreate(conf)
val ss = SparkSession.builder().enableHiveSupport().getOrCreate()
assert(ss.sharedState.externalCatalog.unwrapped.isInstanceOf[HiveExternalCatalog],
"The catalog should be hive ")
val ss2 = SparkSession.builder().getOrCreate()
assert(ss2.sharedState.externalCatalog.unwrapped.isInstanceOf[HiveExternalCatalog],
"The catalog should be shared across sessions")
}
```
Without this fix, the above test will fail.
You can apply it to `org.apache.spark.sql.hive.HiveSharedStateSuite`,
and run,
```sbt
./build/sbt -Phadoop-2.7 -Phive "hive/testOnly org.apache.spark.sql.hive.HiveSharedStateSuite"
```
to verify.
Closes#23709 from yaooqinn/SPARK-26794.
Authored-by: Kent Yao <yaooqinn@hotmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
According to Brian Goetz et al in Java Concurrency in Practice, the double checked locking pattern has worked since Java 5, but only if the resource is declared volatile:
> Subsequent changes in the JMM (Java 5.0 and later) have enabled DCL to work if resource is made volatile, and the performance impact of this is small since volatile reads are usually only slightly more expensive than nonvolatile reads.
CachedRDDBuilder. cachedColumnBuffers and CachedRDDBuilder.clearCache both use DCL to manage the resource ``_cachedColumnBuffers``. The missing ingredient is that ``_cachedColumnBuffers`` is not volatile.
Because of this, clearCache may see ``_cachedColumnBuffers`` as null, when in fact it is not, and therefore fail to un-cache the RDD. There may be other, more subtle bugs due to visibility issues.
To avoid these issues, this PR makes ``_cachedColumnBuffers`` volatile.
## How was this patch tested?
- Existing SQL unit tests
- Existing pyspark-sql tests
Closes#23768 from bersprockets/SPARK-26851.
Authored-by: Bruce Robbins <bersprockets@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to use `System.nanoTime()` instead of `System.currentTimeMillis()` in measurements of time intervals.
`System.currentTimeMillis()` returns current wallclock time and will follow changes to the system clock. Thus, negative wallclock adjustments can cause timeouts to "hang" for a long time (until wallclock time has caught up to its previous value again). This can happen when ntpd does a "step" after the network has been disconnected for some time. The most canonical example is during system bootup when DHCP takes longer than usual. This can lead to failures that are really hard to understand/reproduce. `System.nanoTime()` is guaranteed to be monotonically increasing irrespective of wallclock changes.
## How was this patch tested?
By existing test suites.
Closes#23727 from MaxGekk/system-nanotime.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
There is a very old TODO in `HandleNullInputsForUDF`, saying that we can skip the null check if input is not nullable. We leverage the nullability info at many places, we can trust it here too.
## How was this patch tested?
re-enable an ignored test
Closes#23712 from cloud-fan/minor.
Lead-authored-by: Wenchen Fan <wenchen@databricks.com>
Co-authored-by: Xiao Li <gatorsmile@gmail.com>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
In SPARK-25314, we supported the scenario of having a python UDF that refers to attributes from both legs of a join condition by rewriting the plan to convert an inner join or left semi join to a filter over a cross join. In case of left semi join, this transformation may cause incorrect results when the right leg of join condition produces duplicate rows based on the join condition. This fix disallows the rewrite for left semi join and raises an error in the case like we do for other types of join. In future, we should have separate rule in optimizer to convert left semi join to inner join (I am aware of one case we could do it if we leverage informational constraint i.e when we know the right side does not produce duplicates).
**Python**
```SQL
>>> from pyspark import SparkContext
>>> from pyspark.sql import SparkSession, Column, Row
>>> from pyspark.sql.functions import UserDefinedFunction, udf
>>> from pyspark.sql.types import *
>>> from pyspark.sql.utils import AnalysisException
>>>
>>> spark.conf.set("spark.sql.crossJoin.enabled", "True")
>>> left = spark.createDataFrame([Row(lc1=1, lc2=1), Row(lc1=2, lc2=2)])
>>> right = spark.createDataFrame([Row(rc1=1, rc2=1), Row(rc1=1, rc2=1)])
>>> func = udf(lambda a, b: a == b, BooleanType())
>>> df = left.join(right, func("lc1", "rc1"), "leftsemi").show()
19/02/12 16:07:10 WARN PullOutPythonUDFInJoinCondition: The join condition:<lambda>(lc1#0L, rc1#4L) of the join plan contains PythonUDF only, it will be moved out and the join plan will be turned to cross join.
+---+---+
|lc1|lc2|
+---+---+
| 1| 1|
| 1| 1|
+---+---+
```
**Scala**
```SQL
scala> val left = Seq((1, 1), (2, 2)).toDF("lc1", "lc2")
left: org.apache.spark.sql.DataFrame = [lc1: int, lc2: int]
scala> val right = Seq((1, 1), (1, 1)).toDF("rc1", "rc2")
right: org.apache.spark.sql.DataFrame = [rc1: int, rc2: int]
scala> val equal = udf((p1: Integer, p2: Integer) => {
| p1 == p2
| })
equal: org.apache.spark.sql.expressions.UserDefinedFunction = SparkUserDefinedFunction($Lambda$2141/11016292394666f1b5,BooleanType,List(Some(Schema(IntegerType,true)), Some(Schema(IntegerType,true))),None,false,true)
scala> val df = left.join(right, equal(col("lc1"), col("rc1")), "leftsemi")
df: org.apache.spark.sql.DataFrame = [lc1: int, lc2: int]
scala> df.show()
+---+---+
|lc1|lc2|
+---+---+
| 1| 1|
+---+---+
```
## How was this patch tested?
Modified existing tests.
Closes#23769 from dilipbiswal/dkb_python_udf_in_join.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR targets to add vectorized `gapply()` in R, Arrow optimization.
This can be tested as below:
```bash
$ ./bin/sparkR --conf spark.sql.execution.arrow.enabled=true
```
```r
df <- createDataFrame(mtcars)
collect(gapply(df,
"gear",
function(key, group) {
data.frame(gear = key[[1]], disp = mean(group$disp) > group$disp)
},
structType("gear double, disp boolean")))
```
### Requirements
- R 3.5.x
- Arrow package 0.12+
```bash
Rscript -e 'remotes::install_github("apache/arrowapache-arrow-0.12.0", subdir = "r")'
```
**Note:** currently, Arrow R package is not in CRAN. Please take a look at ARROW-3204.
**Note:** currently, Arrow R package seems not supporting Windows. Please take a look at ARROW-3204.
### Benchmarks
**Shall**
```bash
sync && sudo purge
./bin/sparkR --conf spark.sql.execution.arrow.enabled=false
```
```bash
sync && sudo purge
./bin/sparkR --conf spark.sql.execution.arrow.enabled=true
```
**R code**
```r
rdf <- read.csv("500000.csv")
rdf <- rdf[, c("Month.of.Joining", "Weight.in.Kgs.")] # We're only interested in the key and values to calculate.
df <- cache(createDataFrame(rdf))
count(df)
test <- function() {
options(digits.secs = 6) # milliseconds
start.time <- Sys.time()
count(gapply(df,
"Month_of_Joining",
function(key, group) {
data.frame(Month_of_Joining = key[[1]], Weight_in_Kgs_ = mean(group$Weight_in_Kgs_) > group$Weight_in_Kgs_)
},
structType("Month_of_Joining integer, Weight_in_Kgs_ boolean")))
end.time <- Sys.time()
time.taken <- end.time - start.time
print(time.taken)
}
test()
```
**Data (350 MB):**
```r
object.size(read.csv("500000.csv"))
350379504 bytes
```
"500000 Records" http://eforexcel.com/wp/downloads-16-sample-csv-files-data-sets-for-testing/
**Results**
```
Time difference of 35.67459 secs
```
```
Time difference of 4.301399 secs
```
The performance improvement was around **829%**.
**Note that** I am 100% sure this PR improves more then 829% because I gave up testing it with non-Arrow optimization because it took super super super long when the data size becomes bigger.
### Limitations
- For now, Arrow optimization with R does not support when the data is `raw`, and when user explicitly gives float type in the schema. They produce corrupt values.
- Due to ARROW-4512, it cannot send and receive batch by batch. It has to send all batches in Arrow stream format at once. It needs improvement later.
## How was this patch tested?
Unit tests were added
**TODOs:**
- [x] Draft codes
- [x] make the tests passed
- [x] make the CRAN check pass
- [x] Performance measurement
- [x] Supportability investigation (for instance types)
Closes#23746 from HyukjinKwon/SPARK-26759.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
In https://github.com/apache/spark/issues/23569, the copy method of `ColumnarArray` is implemented.
To further improve it, we can return `UnsafeArrayData` for `date`/`timestamp` type in `ColumnarArray.copy()`.
## How was this patch tested?
Unit test
Closes#23761 from gengliangwang/copyDateAndTS.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
This improves the expression description for commonly used aggregate functions such as Max, Min, Count, etc.
## How was this patch tested?
Verified the function description manually from the shell.
Closes#23756 from dilipbiswal/dkb_expr_description_aggregate.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Run Spark-Sql job use transform features(`ScriptTransformationExec`) with config `spark.speculation = true`, sometimes job fails and we found many Executor Dead through `Executor Tab`, through analysis log and code we found :
`ScriptTransformationExec` start a new thread(`ScriptTransformationWriterThread`), the new thread is very likely to throw `TaskKilledException`(from iter.map.foreach part) when speculation is on, this exception will captured by `SparkUncaughtExceptionHandler` which registered during Executor start, `SparkUncaughtExceptionHandler` will call `System.exit (SparkExitCode.UNCAUGHT_EXCEPTION)` to shutdown `Executor`, this is unexpected.
We should not kill the executor just because `ScriptTransformationWriterThread` fails. log the error(not only `TaskKilledException`) instead of throwing it is enough, Exception already pass to `ScriptTransformationExec` and handle by `TaskRunner`.
## How was this patch tested?
Register `TestUncaughtExceptionHandler` to test case in `ScriptTransformationSuite`, then assert there is no Uncaught Exception handled.
Before this patch "script transformation should not swallow errors from upstream operators (no serde)" and "script transformation should not swallow errors from upstream operators (with serde)" throwing `IllegalArgumentException` and handle by `TestUncaughtExceptionHandler` .
Closes#22149 from LuciferYang/fix-transformation-task-kill.
Authored-by: yangjie01 <yangjie01@baidu.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Implements the solution proposed in [SPARK-26696](https://issues.apache.org/jira/browse/SPARK-26696), a minor refactoring that allows frameworks to perform advanced type-preserving dataset transformations without carrying `Encoder` implicits from user code.
The change allows
```scala
def foo[A](ds: Dataset[A]): Dataset[A] =
ds.toDF().as[A](ds.encoder)
```
instead of
```scala
def foo[A: Encoder](ds: Dataset[A]): Dataset[A] =
ds.toDF().as[A](implicitly[Encoder[A]])
```
## How was this patch tested?
This patch was tested with an automated test that was later removed as it was deemed unnecessary per the discussion in this PR.
Closes#23620 from ssimeonov/ss_SPARK-26696.
Authored-by: Simeon Simeonov <sim@fastignite.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to covert underlying types of timestamp/date columns to strings, and store the converted values as column statistics. This makes statistics for timestamp/date columns independent from system time zone while saving and retrieving such statistics.
I bumped versions of stored statistics from 1 to 2 since the PR changes the format.
## How was this patch tested?
The changes were tested by `StatisticsCollectionSuite` and by `StatisticsSuite`.
Closes#23662 from MaxGekk/column-stats-time-date.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Delegation token providers interface now has a parameter `fileSystems` but this is needed only for `HadoopFSDelegationTokenProvider`.
In this PR I've addressed this issue in the following way:
* Removed `fileSystems` parameter from `HadoopDelegationTokenProvider`
* Moved `YarnSparkHadoopUtil.hadoopFSsToAccess` into `HadoopFSDelegationTokenProvider`
* Moved `spark.yarn.stagingDir` into core
* Moved `spark.yarn.access.namenodes` into core and renamed to `spark.kerberos.access.namenodes`
* Moved `spark.yarn.access.hadoopFileSystems` into core and renamed to `spark.kerberos.access.hadoopFileSystems`
## How was this patch tested?
Existing unit tests.
Closes#23698 from gaborgsomogyi/SPARK-26766.
Authored-by: Gabor Somogyi <gabor.g.somogyi@gmail.com>
Signed-off-by: Marcelo Vanzin <vanzin@cloudera.com>
## What changes were proposed in this pull request?
Not all users wants to keep temporary checkpoint directories. Additionally hard to restore from it.
In this PR I've added a force delete flag which is default `false`. Additionally not clear for users when temporary checkpoint directory deleted so added log messages to explain this a bit more.
## How was this patch tested?
Existing + additional unit tests.
Closes#23732 from gaborgsomogyi/SPARK-26389.
Authored-by: Gabor Somogyi <gabor.g.somogyi@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
This PR consists of the `test` components of #23665 only, minus the associated patch from that PR.
It adds a new unit test to `JsonSuite` which verifies that the `count()` returned from a `DataFrame` loaded from JSON containing empty lines does not include those empty lines in the record count. The test runs `count` prior to otherwise reading data from the `DataFrame`, so as to catch future cases where a pre-parsing optimization might result in `count` results inconsistent with existing behavior.
This PR is intended to be deployed alongside #23667; `master` currently causes the test to fail, as described in [SPARK-26745](https://issues.apache.org/jira/browse/SPARK-26745).
## How was this patch tested?
Manual testing, existing `JsonSuite` unit tests.
Closes#23674 from sumitsu/json_emptyline_count_test.
Authored-by: Branden Smith <branden.smith@publicismedia.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
When we run in background and we get exception which is not HiveSQLException,
we may encounter memory leak since handleToOperation will not removed correctly.
The reason is below:
1. When calling operation.run() in HiveSessionImpl#executeStatementInternal we throw an exception which is not HiveSQLException
2. Then the opHandle generated by SparkSQLOperationManager will not be added into opHandleSet of HiveSessionImpl , and operationManager.closeOperation(opHandle) will not be called
3. When we close the session we will also call operationManager.closeOperation(opHandle),since we did not add this opHandle into the opHandleSet.
For the reasons above,the opHandled will always in SparkSQLOperationManager#handleToOperation,which will cause memory leak.
More details and a case has attached on https://issues.apache.org/jira/browse/SPARK-26751
This patch will always throw HiveSQLException when running in background
## How was this patch tested?
Exist UT
Closes#23673 from caneGuy/zhoukang/fix-hivesessionimpl-leak.
Authored-by: zhoukang <zhoukang199191@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to eliminate checking of parsed segments inside of the `stringToDate` and `stringToTimestamp` because such checking is already performed while constructing *java.time* classes, in particular inside of `LocalDate` and `LocalTime`. As a consequence of removing the explicit checks, the `isInvalidDate` method is not needed any more, and it was removed from `DateTimeUtils`.
## How was this patch tested?
This was tested by `DateExpressionsSuite`, `DateFunctionsSuite`, `DateTimeUtilsSuite` and `CastSuite`.
Closes#23717 from MaxGekk/datetimeutils-refactoring.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Update to Parquet Java 1.10.1.
## How was this patch tested?
Added a test from HyukjinKwon that validates the notEq case from SPARK-26677.
Closes#23704 from rdblue/SPARK-26677-fix-noteq-parquet-bug.
Lead-authored-by: Ryan Blue <blue@apache.org>
Co-authored-by: Hyukjin Kwon <gurwls223@apache.org>
Co-authored-by: Ryan Blue <rdblue@users.noreply.github.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
Make .unpersist(), .destroy() non-blocking by default and adjust callers to request blocking only where important.
This also adds an optional blocking argument to Pyspark's RDD.unpersist(), which never had one.
## How was this patch tested?
Existing tests.
Closes#23685 from srowen/SPARK-26771.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Right now, EventTimeStats.merge doesn't handle `zero.merge(zero)` correctly. This will make `avg` become `NaN`. And whatever gets merged with the result of `zero.merge(zero)`, `avg` will still be `NaN`. Then finally, we call `NaN.toLong` and get `0`, and the user will see the following incorrect report:
```
"eventTime" : {
"avg" : "1970-01-01T00:00:00.000Z",
"max" : "2019-01-31T12:57:00.000Z",
"min" : "2019-01-30T18:44:04.000Z",
"watermark" : "1970-01-01T00:00:00.000Z"
}
```
This issue was reported by liancheng .
This PR fixes the above issue.
## How was this patch tested?
The new unit tests.
Closes#23718 from zsxwing/merge-zero.
Authored-by: Shixiong Zhu <zsxwing@gmail.com>
Signed-off-by: Shixiong Zhu <zsxwing@gmail.com>
## What changes were proposed in this pull request?
For types like Product, we've already add AssertNotNull when we construct serializer(see code below), so we could strip redundant AssertNotNull for those types.
```
val fieldValue = Invoke(
AssertNotNull(inputObject, walkedTypePath), fieldName, dataTypeFor(fieldType),
returnNullable = !fieldType.typeSymbol.asClass.isPrimitive)
```
## How was this patch tested?
Existed.
Closes#23651 from Ngone51/dev-strip-redundant-assertnotnull-for-ecnoder-serializer.
Authored-by: wuyi <ngone_5451@163.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Create a framework for write path of File Source V2.
Also, migrate write path of ORC to V2.
Supported:
* Write to file as Dataframe
Not Supported:
* Partitioning, which is still under development in the data source V2 project.
* Bucketing, which is still under development in the data source V2 project.
* Catalog.
## How was this patch tested?
Unit test
Closes#23601 from gengliangwang/orc_write.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
A followup of https://github.com/apache/spark/pull/23388 .
`AggUtils.createAggregate` is not the right place to normalize the grouping expressions, as final aggregate is also created by it. The grouping expressions of final aggregate should be attributes which refer to the grouping expressions in partial aggregate.
This PR moves the normalization to the caller side of `AggUtils`.
## How was this patch tested?
existing tests
Closes#23692 from cloud-fan/follow.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In #23639, the API `supportDataType` is refactored. We should also remove the method `verifyWriteSchema` and `verifyReadSchema` in `DataSourceUtils`.
Since the error message use `FileFormat.toString` to specify the data source naming, this PR also overriding the `toString` method in `AvroFileFormat`.
## How was this patch tested?
Unit test.
Closes#23699 from gengliangwang/SPARK-26716-followup.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR reverts JSON count optimization part of #21909.
We cannot distinguish the cases below without parsing:
```
[{...}, {...}]
```
```
[]
```
```
{...}
```
```bash
# empty string
```
when we `count()`. One line (input: IN) can be, 0 record, 1 record and multiple records and this is dependent on each input.
See also https://github.com/apache/spark/pull/23665#discussion_r251276720.
## How was this patch tested?
Manually tested.
Closes#23667 from HyukjinKwon/revert-SPARK-24959.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Hive 3.1.1 is released. This PR aims to support Hive 3.1.x metastore.
Please note that Hive 3.0.0 Metastore is skipped intentionally.
## How was this patch tested?
Pass the Jenkins with the updated test cases including 3.1.
Closes#23694 from dongjoon-hyun/SPARK-24360-3.1.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
This is a follow up of https://github.com/apache/spark/pull/23644/files , to make these methods less coupled with each other.
## How was this patch tested?
existing tests
Closes#23687 from cloud-fan/cache.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
After [recent changes](11e5f1bcd4) to CSV parsing to return partial results for bad CSV records, queries of wide CSV tables slowed considerably. That recent change resulted in every row being recreated, even when the associated input record had no parsing issues and the user specified no corrupt record field in his/her schema.
The change to FailureSafeParser.scala also impacted queries against wide JSON tables as well.
In this PR, I propose that a row should be recreated only if columns need to be shifted due to the existence of a corrupt column field in the user-supplied schema. Otherwise, the code should use the row as-is (For CSV input, it will have values for the columns that could be converted, and also null values for columns that could not be converted).
See benchmarks below. The CSV benchmark for 1000 columns went from 120144 ms to 89069 ms, a savings of 25% (this only brings the cost down to baseline levels. Again, see benchmarks below).
Similarly, the JSON benchmark for 1000 columns (added in this PR) went from 109621 ms to 80871 ms, also a savings of 25%.
Still, partial results functionality is preserved:
<pre>
bash-3.2$ cat test2.csv
"hello",1999-08-01,"last"
"there","bad date","field"
"again","2017-11-22","in file"
bash-3.2$ bin/spark-shell
...etc...
scala> val df = spark.read.schema("a string, b date, c string").csv("test2.csv")
df: org.apache.spark.sql.DataFrame = [a: string, b: date ... 1 more field]
scala> df.show
+-----+----------+-------+
| a| b| c|
+-----+----------+-------+
|hello|1999-08-01| last|
|there| null| field|
|again|2017-11-22|in file|
+-----+----------+-------+
scala> val df = spark.read.schema("badRecord string, a string, b date, c string").
| option("columnNameOfCorruptRecord", "badRecord").
| csv("test2.csv")
df: org.apache.spark.sql.DataFrame = [badRecord: string, a: string ... 2 more fields]
scala> df.show
+--------------------+-----+----------+-------+
| badRecord| a| b| c|
+--------------------+-----+----------+-------+
| null|hello|1999-08-01| last|
|"there","bad date...|there| null| field|
| null|again|2017-11-22|in file|
+--------------------+-----+----------+-------+
scala>
</pre>
### CSVBenchmark Benchmarks:
baseline = commit before partial results change
PR = this PR
master = master branch
[baseline_CSVBenchmark-results.txt](https://github.com/apache/spark/files/2697109/baseline_CSVBenchmark-results.txt)
[pr_CSVBenchmark-results.txt](https://github.com/apache/spark/files/2697110/pr_CSVBenchmark-results.txt)
[master_CSVBenchmark-results.txt](https://github.com/apache/spark/files/2697111/master_CSVBenchmark-results.txt)
### JSONBenchmark Benchmarks:
baseline = commit before partial results change
PR = this PR
master = master branch
[baseline_JSONBenchmark-results.txt](https://github.com/apache/spark/files/2711040/baseline_JSONBenchmark-results.txt)
[pr_JSONBenchmark-results.txt](https://github.com/apache/spark/files/2711041/pr_JSONBenchmark-results.txt)
[master_JSONBenchmark-results.txt](https://github.com/apache/spark/files/2711042/master_JSONBenchmark-results.txt)
## How was this patch tested?
- All SQL unit tests.
- Added 2 CSV benchmarks
- Python core and SQL tests
Closes#23336 from bersprockets/csv-wide-row-opt2.
Authored-by: Bruce Robbins <bersprockets@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
For making test suite supporting both Parquet and Orc by reusing test cases, this patch extracts the methods for testing. For example, if we need to test a common feature shared by Parquet and Orc, we should be able to write test cases once and reuse them to test both formats.
This patch extracts the methods for testing and uses a variable `dataSourceName` to set up data format to test against with.
## How was this patch tested?
Existing tests.
Closes#23628 from viirya/datasource-test.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
We should pass the existed `fileStatusCache` to `InMemoryFileIndex` even though there aren't partition columns.
## How was this patch tested?
Existed test. Extra tests can be added if there is a requirement.
Closes#23683 from ConeyLiu/filestatuscache.
Authored-by: Xianyang Liu <xianyang.liu@intel.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Following https://github.com/apache/spark/pull/23430, this PR does the API refactor for continuous read, w.r.t. the [doc](https://docs.google.com/document/d/1uUmKCpWLdh9vHxP7AWJ9EgbwB_U6T3EJYNjhISGmiQg/edit?usp=sharing)
The major changes:
1. rename `XXXContinuousReadSupport` to `XXXContinuousStream`
2. at the beginning of continuous streaming execution, convert `StreamingRelationV2` to `StreamingDataSourceV2Relation` directly, instead of `StreamingExecutionRelation`.
3. remove all the hacks as we have finished all the read side API refactor
## How was this patch tested?
existing tests
Closes#23619 from cloud-fan/continuous.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
In master, `GetMapValue` nullable is always true;
cf133e6110/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/complexTypeExtractors.scala (L371)
But, If input key is foldable, we could make its nullability more precise.
This fix is the same with SPARK-26637(#23566).
## How was this patch tested?
Added tests in `ComplexTypeSuite`.
Closes#23669 from maropu/SPARK-26747.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
- Replacing `java.util.Calendar` in `DateTimeUtils. truncTimestamp` and in `DateTimeUtils.getOffsetFromLocalMillis ` by equivalent code using Java 8 API for timestamp manipulations. The reason is `java.util.Calendar` is based on the hybrid calendar (Julian+Gregorian) but *java.time* classes use Proleptic Gregorian calendar which assumes by SQL standard.
- Replacing `Calendar.getInstance()` in `DateTimeUtilsSuite` by similar code in `DateTimeTestUtils` using *java.time* classes
## How was this patch tested?
The changes were tested by existing suites: `DateExpressionsSuite`, `DateFunctionsSuite` and `DateTimeUtilsSuite`.
Closes#23641 from MaxGekk/cleanup-date-time-utils.
Authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Added the following benchmarks:
- Extract components from timestamp like year, month, day and etc.
- Current date and time
- Date arithmetic like date_add, date_sub
- Format dates and timestamps
- Convert timestamps from/to UTC
Closes#23661 from MaxGekk/datetime-benchmark.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Herman van Hovell <hvanhovell@databricks.com>
## What changes were proposed in this pull request?
Adjust mem settings in UnifiedMemoryManager used in test suites to ha…ve execution memory > 0
Ref: https://github.com/apache/spark/pull/23457#issuecomment-457409976
## How was this patch tested?
Existing tests
Closes#23645 from srowen/SPARK-26725.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
When performing non-cascading cache invalidation, `recache` is called on the other cache entries which are dependent on the cache being invalidated. It leads to the the physical plans of those cache entries being re-compiled. For those cache entries, if the cache RDD has already been persisted, chances are there will be inconsistency between the data and the new plan. It can cause a correctness issue if the new plan's `outputPartitioning` or `outputOrdering` is different from the that of the actual data, and meanwhile the cache is used by another query that asks for specific `outputPartitioning` or `outputOrdering` which happens to match the new plan but not the actual data.
The fix is to keep the cache entry as it is if the data has been loaded, otherwise re-build the cache entry, with a new plan and an empty cache buffer.
## How was this patch tested?
Added UT.
Closes#23644 from maryannxue/spark-26708.
Lead-authored-by: maryannxue <maryannxue@apache.org>
Co-authored-by: Xiao Li <gatorsmile@gmail.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
1. Remove parameter `isReadPath`. The supported types of read/write should be the same.
2. Disallow reading `NullType` for ORC data source. In #21667 and #21389, it was supposed that ORC supports reading `NullType`, but can't write it. This doesn't make sense. I read docs and did some tests. ORC doesn't support `NullType`.
## How was this patch tested?
Unit tset
Closes#23639 from gengliangwang/supportDataType.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
Spark replaces `CurrentTimestamp` with `CurrentBatchTimestamp`.
However, `CurrentBatchTimestamp` is `TimeZoneAwareExpression` while `CurrentTimestamp` isn't.
Without TimeZoneId, `CurrentBatchTimestamp` becomes unresolved and raises `UnresolvedException`.
Since `CurrentDate` is `TimeZoneAwareExpression`, there is no problem with `CurrentDate`.
This PR reverts the [previous patch](https://github.com/apache/spark/pull/23609) on `MicroBatchExecution` and fixes the root cause.
## How was this patch tested?
Pass the Jenkins with the updated test cases.
Closes#23660 from dongjoon-hyun/SPARK-26379.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
Add verification of plan integrity with regards to special expressions being hosted only in supported operators. Specifically:
- `AggregateExpression`: should only be hosted in `Aggregate`, or indirectly in `Window`
- `WindowExpression`: should only be hosted in `Window`
- `Generator`: should only be hosted in `Generate`
This will help us catch errors in future optimizer rules that incorrectly hoist special expression out of their supported operator.
TODO: This PR actually caught a bug in the analyzer in the test case `SPARK-23957 Remove redundant sort from subquery plan(scalar subquery)` in `SubquerySuite`, where a `max()` aggregate function is hosted in a `Sort` operator in the analyzed plan, which is invalid. That test case is disabled in this PR.
SPARK-26741 has been opened to track the fix in the analyzer.
## How was this patch tested?
Added new test case in `OptimizerStructuralIntegrityCheckerSuite`
Closes#23658 from rednaxelafx/plan-integrity.
Authored-by: Kris Mok <kris.mok@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
This PR targets to support Arrow optimization for conversion from R DataFrame to Spark DataFrame.
Like PySpark side, it falls back to non-optimization code path when it's unable to use Arrow optimization.
This can be tested as below:
```bash
$ ./bin/sparkR --conf spark.sql.execution.arrow.enabled=true
```
```r
collect(createDataFrame(mtcars))
```
### Requirements
- R 3.5.x
- Arrow package 0.12+
```bash
Rscript -e 'remotes::install_github("apache/arrowapache-arrow-0.12.0", subdir = "r")'
```
**Note:** currently, Arrow R package is not in CRAN. Please take a look at ARROW-3204.
**Note:** currently, Arrow R package seems not supporting Windows. Please take a look at ARROW-3204.
### Benchmarks
**Shall**
```bash
sync && sudo purge
./bin/sparkR --conf spark.sql.execution.arrow.enabled=false
```
```bash
sync && sudo purge
./bin/sparkR --conf spark.sql.execution.arrow.enabled=true
```
**R code**
```r
createDataFrame(mtcars) # Initializes
rdf <- read.csv("500000.csv")
test <- function() {
options(digits.secs = 6) # milliseconds
start.time <- Sys.time()
createDataFrame(rdf)
end.time <- Sys.time()
time.taken <- end.time - start.time
print(time.taken)
}
test()
```
**Data (350 MB):**
```r
object.size(read.csv("500000.csv"))
350379504 bytes
```
"500000 Records" http://eforexcel.com/wp/downloads-16-sample-csv-files-data-sets-for-testing/
**Results**
```
Time difference of 29.9468 secs
```
```
Time difference of 3.222129 secs
```
The performance improvement was around **950%**.
Actually, this PR improves around **1200%**+ because this PR includes a small optimization about regular R DataFrame -> Spark DatFrame. See https://github.com/apache/spark/pull/22954#discussion_r231847272
### Limitations:
For now, Arrow optimization with R does not support when the data is `raw`, and when user explicitly gives float type in the schema. They produce corrupt values.
In this case, we decide to fall back to non-optimization code path.
## How was this patch tested?
Small test was added.
I manually forced to set this optimization `true` for _all_ R tests and they were _all_ passed (with few of fallback warnings).
**TODOs:**
- [x] Draft codes
- [x] make the tests passed
- [x] make the CRAN check pass
- [x] Performance measurement
- [x] Supportability investigation (for instance types)
- [x] Wait for Arrow 0.12.0 release
- [x] Fix and match it to Arrow 0.12.0
Closes#22954 from HyukjinKwon/r-arrow-createdataframe.
Lead-authored-by: hyukjinkwon <gurwls223@apache.org>
Co-authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
When we read a hive table and create RDDs in `TableReader`, it'll throw exception `java.lang.ClassCastException: org.apache.hadoop.mapreduce.lib.input.TextInputFormat cannot be cast to org.apache.hadoop.mapred.InputFormat` if the input format class of the table is from mapreduce package.
Now we use NewHadoopRDD to deal with the new input format and keep HadoopRDD to the old one.
This PR is from #23506. We can reproduce this issue by executing the new test with the code in old version. When create a table with `org.apache.hadoop.mapreduce.....` input format, we will find the exception thrown in `org.apache.spark.rdd.HadoopRDD.getInputFormat(HadoopRDD.scala:190)`
## How was this patch tested?
Added a new test.
Closes#23559 from Deegue/fix-hadoopRDD.
Lead-authored-by: heguozi <zyzzxycj@gmail.com>
Co-authored-by: Yizhong Zhang <zyzzxycj@163.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
This PR makes hardcoded configs about spark memory and storage to use `ConfigEntry` and put them in the config package.
## How was this patch tested?
Existing unit tests.
Closes#23623 from SongYadong/configEntry_for_mem_storage.
Authored-by: SongYadong <song.yadong1@zte.com.cn>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This PR fixes a bug where JSON schema inference attempts to convert every String value to a BigDecimal regardless of the setting of "prefersDecimal". With that bug, behavior is still correct, but performance is impacted.
This PR makes this conversion lazy, so it is only performed if prefersDecimal is set to true.
Using Spark with a single executor thread to infer the schema of a single-column, 100M row JSON file, the performance impact is as follows:
option | baseline | pr
-----|----|-----
inferTimestamp=_default_<br>prefersDecimal=_default_ | 12.5 minutes | 6.1 minutes |
inferTimestamp=false<br>prefersDecimal=_default_ | 6.5 minutes | 49 seconds |
inferTimestamp=false<br>prefersDecimal=true | 6.5 minutes | 6.5 minutes |
## How was this patch tested?
I ran JsonInferSchemaSuite and JsonSuite. Also, I ran manual tests to see performance impact (see above).
Closes#23653 from bersprockets/SPARK-26711_improved.
Authored-by: Bruce Robbins <bersprockets@gmail.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
This patch proposes to fix issue on adding `current_timestamp` / `current_date` with streaming query.
The root reason is that Spark transforms `CurrentTimestamp`/`CurrentDate` to `CurrentBatchTimestamp` in MicroBatchExecution which makes transformed attributes not-yet-resolved. They will be resolved by IncrementalExecution.
(In ContinuousExecution, Spark doesn't allow using `current_timestamp` and `current_date` so it has been OK.)
It's OK for DataSource V1 sink because it simply leverages transformed logical plan and don't evaluate until they're resolved, but for DataSource V2 sink, Spark tries to extract the schema of transformed logical plan in prior to IncrementalExecution, and unresolved attributes will raise errors.
This patch fixes the issue via having separate pre-resolved logical plan to pass the schema to StreamingWriteSupport safely.
## How was this patch tested?
Added UT.
Closes#23609 from HeartSaVioR/SPARK-26379.
Authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan@gmail.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
There are ugly provided dependencies inside core for the following:
* Hive
* Kafka
In this PR I've extracted them out. This PR contains the following:
* Token providers are now loaded with service loader
* Hive token provider moved to hive project
* Kafka token provider extracted into a new project
## How was this patch tested?
Existing + newly added unit tests.
Additionally tested on cluster.
Closes#23499 from gaborgsomogyi/SPARK-26254.
Authored-by: Gabor Somogyi <gabor.g.somogyi@gmail.com>
Signed-off-by: Marcelo Vanzin <vanzin@cloudera.com>
## What changes were proposed in this pull request?
In the PR, I propose to remove the following methods from `DateTimeUtils`:
- `timestampAddInterval` and `stringToTimestamp` - used only in test suites
- `truncTimestamp`, `getSeconds`, `getMinutes`, `getHours` - those methods assume system default time zone. They are not used in Spark.
## How was this patch tested?
This was tested by `DateTimeUtilsSuite` and `UnsafeArraySuite`.
Closes#23643 from MaxGekk/unused-date-time-utils.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Noop data source for batch was added in [#23471](https://github.com/apache/spark/pull/23471).
In this PR I've added the streaming part.
## How was this patch tested?
Additional unit tests.
Closes#23631 from gaborgsomogyi/SPARK-26649.
Authored-by: Gabor Somogyi <gabor.g.somogyi@gmail.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
When reading from empty tables, the optimization `OptimizeMetadataOnlyQuery` may return wrong results:
```
sql("CREATE TABLE t (col1 INT, p1 INT) USING PARQUET PARTITIONED BY (p1)")
sql("INSERT INTO TABLE t PARTITION (p1 = 5) SELECT ID FROM range(1, 1)")
sql("SELECT MAX(p1) FROM t")
```
The result is supposed to be `null`. However, with the optimization the result is `5`.
The rule is originally ported from https://issues.apache.org/jira/browse/HIVE-1003 in #13494. In Hive, the rule is disabled by default in a later release(https://issues.apache.org/jira/browse/HIVE-15397), due to the same problem.
It is hard to completely avoid the correctness issue. Because data sources like Parquet can be metadata-only. Spark can't tell whether it is empty or not without actually reading it. This PR disable the optimization by default.
## How was this patch tested?
Unit test
Closes#23635 from gengliangwang/optimizeMetadata.
Lead-authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Co-authored-by: Xiao Li <gatorsmile@gmail.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
Checkpoints of Dataframes currently do not show up in SQL UI. This PR fixes that by setting an execution id for the execution of the checkpoint by wrapping the checkpoint code with a `withAction`.
## How was this patch tested?
A unit test was added to DatasetSuite.
Closes#23636 from tomvanbussel/SPARK-26690.
Authored-by: Tom van Bussel <tom.vanbussel@databricks.com>
Signed-off-by: Herman van Hovell <hvanhovell@databricks.com>
## What changes were proposed in this pull request?
When a user passes a Stream to groupBy, ```CodegenSupport.consume``` ends up lazily generating ```inputVars``` from a Stream, since the field ```output``` will be a Stream. At the time ```output.zipWithIndex.map``` is called, conditions are correct. However, by the time the map operation actually executes, conditions are no longer appropriate. The closure used by the map operation ends up using a reference to the partially created ```inputVars```. As a result, a StackOverflowError occurs.
This PR ensures that ```inputVars``` is eagerly created while conditions are appropriate. It seems this was also an issue with the code path for creating ```inputVars``` from ```outputVars``` (SPARK-25767). I simply extended the solution for that code path to encompass both code paths.
## How was this patch tested?
SQL unit tests
new test
python tests
Closes#23617 from bersprockets/SPARK-26680_opt1.
Authored-by: Bruce Robbins <bersprockets@gmail.com>
Signed-off-by: Herman van Hovell <hvanhovell@databricks.com>
## What changes were proposed in this pull request?
Updates the attempt ID used by FileFormatWriter. Tasks in stage attempts use the same task attempt number and could conflict. Using Spark's task attempt ID guarantees that Hadoop TaskAttemptID instances are unique.
## How was this patch tested?
Existing tests. Also validated that we no longer detect this failure case in our logs after deployment.
Closes#23608 from rdblue/SPARK-26682-fix-hadoop-task-attempt-id.
Authored-by: Ryan Blue <blue@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Fixed several places in CacheManager where a write lock was being held while running the query optimizer. This could cause a very lock block if the query optimization takes a long time. This builds on changes from [SPARK-26548] that fixed this issue for one specific case in the CacheManager.
gatorsmile This is very similar to the PR you approved last week.
## How was this patch tested?
Has been tested on a live system where the blocking was causing major issues and it is working well.
CacheManager has no explicit unit test but is used in many places internally as part of the SharedState.
Closes#23539 from DaveDeCaprio/cache-manager-locks.
Lead-authored-by: Dave DeCaprio <daved@alum.mit.edu>
Co-authored-by: David DeCaprio <daved@alum.mit.edu>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Implement copy() for ColumnarArray
## How was this patch tested?
Updating test case to existing tests in ColumnVectorSuite
Closes#23569 from ayudovin/copy-for-columnArray.
Authored-by: ayudovin <a.yudovin6695@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR contains a minor change in `Cast$mayTruncate` that fixes its logic for bytes.
Right now, `mayTruncate(ByteType, LongType)` returns `false` while `mayTruncate(ShortType, LongType)` returns `true`. Consequently, `spark.range(1, 3).as[Byte]` and `spark.range(1, 3).as[Short]` behave differently.
Potentially, this bug can silently corrupt someone's data.
```scala
// executes silently even though Long is converted into Byte
spark.range(Long.MaxValue - 10, Long.MaxValue).as[Byte]
.map(b => b - 1)
.show()
+-----+
|value|
+-----+
| -12|
| -11|
| -10|
| -9|
| -8|
| -7|
| -6|
| -5|
| -4|
| -3|
+-----+
// throws an AnalysisException: Cannot up cast `id` from bigint to smallint as it may truncate
spark.range(Long.MaxValue - 10, Long.MaxValue).as[Short]
.map(s => s - 1)
.show()
```
## How was this patch tested?
This PR comes with a set of unit tests.
Closes#23632 from aokolnychyi/cast-fix.
Authored-by: Anton Okolnychyi <aokolnychyi@apple.com>
Signed-off-by: DB Tsai <d_tsai@apple.com>
## What changes were proposed in this pull request?
This adds a new pattern to recognize Ammonite REPL classes and return the correct scope.
## How was this patch tested?
Manually tested with Spark in an Ammonite session.
Closes#23607 from rdblue/SPARK-26681-support-ammonite-scopes.
Authored-by: Ryan Blue <blue@apache.org>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose using of the `stringToDate` and `stringToTimestamp` methods in parsing JDBC lower/upper bounds of the partition column if it has `DateType` or `TimestampType`. Since those methods have been ported on Proleptic Gregorian calendar by #23512, the PR switches parsing of JDBC bounds of the partition column on the calendar as well.
## How was this patch tested?
This was tested by `JDBCSuite`.
Closes#23597 from MaxGekk/jdbc-parse-timestamp-bounds.
Lead-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the master, GetArrayItem nullable is always true;
cf133e6110/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/complexTypeExtractors.scala (L236)
But, If input array size is constant and ordinal is foldable, we could make GetArrayItem nullability more precise. This pr added code to make `GetArrayItem` nullability more precise.
## How was this patch tested?
Added tests in `ComplexTypeSuite`.
Closes#23566 from maropu/GetArrayItemNullability.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
The explain output of the Hive CTAS command, regardless of whether it's actually writing via Hive's SerDe or converted into using Spark's data source, would always show that it's using `InsertIntoHiveTable` because it's hardcoded.
e.g.
```
Execute OptimizedCreateHiveTableAsSelectCommand [Database:default, TableName: foo, InsertIntoHiveTable]
```
This CTAS is converted into using Spark's data source, but it still says `InsertIntoHiveTable` in the explain output.
It's better to show the actual class name of the writing command used. For the example above, it'd be:
```
Execute OptimizedCreateHiveTableAsSelectCommand [Database:default, TableName: foo, InsertIntoHadoopFsRelationCommand]
```
## How was this patch tested?
Added test case in `HiveExplainSuite`
Closes#23582 from rednaxelafx/fix-explain-1.
Authored-by: Kris Mok <kris.mok@databricks.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
The expressions `DayWeek`, `DayOfWeek`, `WeekDay` and `WeekOfYear` are changed to use Proleptic Gregorian calendar instead of the hybrid one (Julian+Gregorian). This was achieved by using Java 8 API for date/timestamp manipulation, in particular the `LocalDate` class.
Week of year calculation is performed according to ISO-8601. The first week of a week-based-year is the first Monday-based week of the standard ISO year that has at least 4 days in the new year (see https://docs.oracle.com/javase/8/docs/api/java/time/temporal/IsoFields.html).
## How was this patch tested?
The changes were tested by `DateExpressionsSuite` and `DateFunctionsSuite`.
Closes#23594 from MaxGekk/dayweek-gregorian.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Herman van Hovell <hvanhovell@databricks.com>
## What changes were proposed in this pull request?
The PR makes hardcoded `spark.dynamicAllocation`, `spark.scheduler`, `spark.rpc`, `spark.task`, `spark.speculation`, and `spark.cleaner` configs to use `ConfigEntry`.
## How was this patch tested?
Existing tests
Closes#23416 from kiszk/SPARK-26463.
Authored-by: Kazuaki Ishizaki <ishizaki@jp.ibm.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Since 0.11.0, PyArrow supports to raise an error for unsafe cast ([PR](https://github.com/apache/arrow/pull/2504)). We should use it to raise a proper error for pandas udf users when such cast is detected.
Added a SQL config `spark.sql.execution.pandas.arrowSafeTypeConversion` to disable Arrow safe type check.
## How was this patch tested?
Added test and manually test.
Closes#22807 from viirya/SPARK-25811.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Following https://github.com/apache/spark/pull/23086, this PR does the API refactor for micro-batch read, w.r.t. the [doc](https://docs.google.com/document/d/1uUmKCpWLdh9vHxP7AWJ9EgbwB_U6T3EJYNjhISGmiQg/edit?usp=sharing)
The major changes:
1. rename `XXXMicroBatchReadSupport` to `XXXMicroBatchReadStream`
2. implement `TableProvider`, `Table`, `ScanBuilder` and `Scan` for streaming sources
3. at the beginning of micro-batch streaming execution, convert `StreamingRelationV2` to `StreamingDataSourceV2Relation` directly, instead of `StreamingExecutionRelation`.
followup:
support operator pushdown for stream sources
## How was this patch tested?
existing tests
Closes#23430 from cloud-fan/micro-batch.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
The `fromString` and `fromJSON` methods of the `Literal` object are removed because they are not used.
Closes#23596Closes#23603 from MaxGekk/remove-literal-fromstring.
Authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Correct some unit test mistakes.
## How was this patch tested?
N/A
Closes#23583 from 10110346/unused_symbol.
Authored-by: liuxian <liu.xian3@zte.com.cn>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
The PR makes hardcoded `spark.unsafe` configs to use ConfigEntry and put them in the `config` package.
## How was this patch tested?
Existing UTs
Closes#23412 from kiszk/SPARK-26477.
Authored-by: Kazuaki Ishizaki <ishizaki@jp.ibm.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
In the PR, I propose to make creation of typed Literals `TIMESTAMP` and `DATE` consistent to the `Cast` expression. More precisely, reusing the `Cast` expression in the type constructors. In this way, it allows:
- To use the same calendar in parsing methods
- To support the same set of timestamp/date patterns
For example, creating timestamp literal:
```sql
SELECT TIMESTAMP '2019-01-14 20:54:00.000'
```
behaves similarly as casting the string literal:
```sql
SELECT CAST('2019-01-14 20:54:00.000' AS TIMESTAMP)
```
## How was this patch tested?
This was tested by `SQLQueryTestSuite` as well as `ExpressionParserSuite`.
Closes#23541 from MaxGekk/timestamp-date-constructors.
Lead-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Herman van Hovell <hvanhovell@databricks.com>
## What changes were proposed in this pull request?
`DataWritingCommandExec` generates `cmd.nodeName` twice in its explain output, e.g. when running this query `spark.sql("create table foo stored as parquet as select id, id % 10 as cat1, id % 20 as cat2 from range(10)")`,
```
Execute OptimizedCreateHiveTableAsSelectCommand OptimizedCreateHiveTableAsSelectCommand [Database:default, TableName: foo, InsertIntoHiveTable]
+- *(1) Project [id#2L, (id#2L % 10) AS cat1#0L, (id#2L % 20) AS cat2#1L]
+- *(1) Range (0, 10, step=1, splits=8)
```
After the fix, it'll go back to normal:
```
Execute OptimizedCreateHiveTableAsSelectCommand [Database:default, TableName: foo, InsertIntoHiveTable]
+- *(1) Project [id#2L, (id#2L % 10) AS cat1#0L, (id#2L % 20) AS cat2#1L]
+- *(1) Range (0, 10, step=1, splits=8)
```
This duplication is introduced when this specialized `DataWritingCommandExec` was created in place of `ExecutedCommandExec`.
The former is a `UnaryExecNode` whose `children` include the physical plan of the query, and the `cmd` is picked up via `TreeNode.stringArgs` into the argument string. The duplication comes from: `DataWritingCommandExec.nodeName` is `s"Execute ${cmd.nodeName}"` while the argument string is `cmd.simpleString()` which also includes `cmd.nodeName`.
The latter didn't have that problem because it's a `LeafExecNode` with no children, and it declares the `cmd` as being a part of the `innerChildren` which is excluded from the argument string.
## How was this patch tested?
Manual testing of running the example above in a local Spark Shell.
Also added a new test case in `ExplainSuite`.
Closes#23579 from rednaxelafx/fix-explain.
Authored-by: Kris Mok <kris.mok@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
Misc code cleanup from lgtm.com analysis. See comments below for details.
## How was this patch tested?
Existing tests.
Closes#23571 from srowen/SPARK-26640.
Lead-authored-by: Sean Owen <sean.owen@databricks.com>
Co-authored-by: Hyukjin Kwon <gurwls223@apache.org>
Co-authored-by: Sean Owen <srowen@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Try to make labels more obvious
"avg hash probe" avg hash probe bucket iterations
"partition pruning time (ms)" dynamic partition pruning time
"total number of files in the table" file count
"number of files that would be returned by partition pruning alone" file count after partition pruning
"total size of files in the table" file size
"size of files that would be returned by partition pruning alone" file size after partition pruning
"metadata time (ms)" metadata time
"aggregate time" time in aggregation build
"aggregate time" time in aggregation build
"time to construct rdd bc" time to build
"total time to remove rows" time to remove
"total time to update rows" time to update
Add proper metric type to some metrics:
"bytes of written output" written output - createSizeMetric
"metadata time" - createTimingMetric
"dataSize" - createSizeMetric
"collectTime" - createTimingMetric
"buildTime" - createTimingMetric
"broadcastTIme" - createTimingMetric
## How is this patch tested?
Existing tests.
Author: Stacy Kerkela <stacy.kerkeladatabricks.com>
Signed-off-by: Juliusz Sompolski <julekdatabricks.com>
Closes#23551 from juliuszsompolski/SPARK-26622.
Lead-authored-by: Juliusz Sompolski <julek@databricks.com>
Co-authored-by: Stacy Kerkela <stacy.kerkela@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
The PR makes hardcoded `spark.shuffle` configs to use ConfigEntry and put them in the config package.
## How was this patch tested?
Existing unit tests
Closes#23550 from 10110346/ConfigEntry_shuffle.
Authored-by: liuxian <liu.xian3@zte.com.cn>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to use *java.time* classes in `stringToDate` and `stringToTimestamp`. This switches the methods from the hybrid calendar (Gregorian+Julian) to Proleptic Gregorian calendar. And it should make the casting consistent to other Spark classes that converts textual representation of dates/timestamps to `DateType`/`TimestampType`.
## How was this patch tested?
The changes were tested by existing suites - `HashExpressionsSuite`, `CastSuite` and `DateTimeUtilsSuite`.
Closes#23512 from MaxGekk/utf8string-timestamp-parsing.
Lead-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Herman van Hovell <hvanhovell@databricks.com>
## What changes were proposed in this pull request?
Create a framework for file source V2 based on data source V2 API.
As a good example for demonstrating the framework, this PR also migrate ORC source. This is because ORC file source supports both row scan and columnar scan, and the implementation is simpler comparing with Parquet.
Note: Currently only read path of V2 API is done, this framework and migration are only for the read path.
Supports the following scan:
- Scan ColumnarBatch
- Scan UnsafeRow
- Push down filters
- Push down required columns
Not supported( due to the limitation of data source V2 API):
- Stats metrics
- Catalog table
- Writes
## How was this patch tested?
Unit test
Closes#23383 from gengliangwang/latest_orcV2.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
The PR makes hardcoded configs below to use `ConfigEntry`.
* spark.kryo
* spark.kryoserializer
* spark.serializer
* spark.jars
* spark.files
* spark.submit
* spark.deploy
* spark.worker
This patch doesn't change configs which are not relevant to SparkConf (e.g. system properties).
## How was this patch tested?
Existing tests.
Closes#23532 from HeartSaVioR/SPARK-26466-v2.
Authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
`SerializeFromObject` now keeps all serializer expressions for domain object even when only part of output attributes are used by top plan.
We should be able to prune unused serializers from `SerializeFromObject` in such case.
## How was this patch tested?
Added tests.
Closes#23562 from viirya/SPARK-26619.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: DB Tsai <d_tsai@apple.com>
## What changes were proposed in this pull request?
In the PR, I propose new built-in datasource with name `noop` which can be used in:
- benchmarking to avoid additional overhead of actions and unnecessary type conversions
- caching of datasets/dataframes
- producing other side effects as a consequence of row materialisations like uploading data to a IO caches.
## How was this patch tested?
Added a test to check that datasource rows are materialised.
Closes#23471 from MaxGekk/none-datasource.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Herman van Hovell <hvanhovell@databricks.com>
## What changes were proposed in this pull request?
When a streaming query has multiple file streams, and there is a batch where one of the file streams dont have data in that batch, then if the query has to restart from that, it will throw the following error.
```
java.lang.IllegalStateException: batch 1 doesn't exist
at org.apache.spark.sql.execution.streaming.HDFSMetadataLog$.verifyBatchIds(HDFSMetadataLog.scala:300)
at org.apache.spark.sql.execution.streaming.FileStreamSourceLog.get(FileStreamSourceLog.scala:120)
at org.apache.spark.sql.execution.streaming.FileStreamSource.getBatch(FileStreamSource.scala:181)
at org.apache.spark.sql.execution.streaming.MicroBatchExecution$$anonfun$org$apache$spark$sql$execution$streaming$MicroBatchExecution$$populateStartOffsets$2.apply(MicroBatchExecution.scala:294)
at org.apache.spark.sql.execution.streaming.MicroBatchExecution$$anonfun$org$apache$spark$sql$execution$streaming$MicroBatchExecution$$populateStartOffsets$2.apply(MicroBatchExecution.scala:291)
at scala.collection.Iterator$class.foreach(Iterator.scala:891)
at scala.collection.AbstractIterator.foreach(Iterator.scala:1334)
at scala.collection.IterableLike$class.foreach(IterableLike.scala:72)
at org.apache.spark.sql.execution.streaming.StreamProgress.foreach(StreamProgress.scala:25)
at org.apache.spark.sql.execution.streaming.MicroBatchExecution.org$apache$spark$sql$execution$streaming$MicroBatchExecution$$populateStartOffsets(MicroBatchExecution.scala:291)
at org.apache.spark.sql.execution.streaming.MicroBatchExecution$$anonfun$runActivatedStream$1$$anonfun$apply$mcZ$sp$1.apply$mcV$sp(MicroBatchExecution.scala:178)
at org.apache.spark.sql.execution.streaming.MicroBatchExecution$$anonfun$runActivatedStream$1$$anonfun$apply$mcZ$sp$1.apply(MicroBatchExecution.scala:175)
at org.apache.spark.sql.execution.streaming.MicroBatchExecution$$anonfun$runActivatedStream$1$$anonfun$apply$mcZ$sp$1.apply(MicroBatchExecution.scala:175)
at org.apache.spark.sql.execution.streaming.ProgressReporter$class.reportTimeTaken(ProgressReporter.scala:251)
at org.apache.spark.sql.execution.streaming.StreamExecution.reportTimeTaken(StreamExecution.scala:61)
at org.apache.spark.sql.execution.streaming.MicroBatchExecution$$anonfun$runActivatedStream$1.apply$mcZ$sp(MicroBatchExecution.scala:175)
at org.apache.spark.sql.execution.streaming.ProcessingTimeExecutor.execute(TriggerExecutor.scala:56)
at org.apache.spark.sql.execution.streaming.MicroBatchExecution.runActivatedStream(MicroBatchExecution.scala:169)
at org.apache.spark.sql.execution.streaming.StreamExecution.org$apache$spark$sql$execution$streaming$StreamExecution$$runStream(StreamExecution.scala:295)
at org.apache.spark.sql.execution.streaming.StreamExecution$$anon$1.run(StreamExecution.scala:205)
```
Existing `HDFSMetadata.verifyBatchIds` threw error whenever the `batchIds` list was empty. In the context of `FileStreamSource.getBatch` (where verify is called) and `FileStreamSourceLog` (subclass of `HDFSMetadata`), this is usually okay because, in a streaming query with one file stream, the `batchIds` can never be empty:
- A batch is planned only when the `FileStreamSourceLog` has seen new offset (that is, there are new data files).
- So `FileStreamSource.getBatch` will be called on X to Y where X will always be > Y. This calls internally`HDFSMetadata.verifyBatchIds (X+1, Y)` with X+1-Y ids.
For example.,`FileStreamSource.getBatch(4, 5)` will call `verify(batchIds = Seq(5), start = 5, end = 5)`. However, the invariant of X > Y is not true when there are two file stream sources, as a batch may be planned even when only one of the file streams has data. So one of the file stream may not have data, which can call `FileStreamSource.getBatch(X, X)` -> `verify(batchIds = Seq.empty, start = X+1, end = X)` -> failure.
Note that `FileStreamSource.getBatch(X, X)` gets called **only when restarting a query in a batch where a file source did not have data**. This is because in normal planning of batches, `MicroBatchExecution` avoids calling `FileStreamSource.getBatch(X, X)` when offset X has not changed. However, when restarting a stream at such a batch, `MicroBatchExecution.populateStartOffsets()` calls `FileStreamSource.getBatch(X, X)` (DataSource V1 hack to initialize the source with last known offsets) thus hitting this issue.
The minimum solution here is to skip verification when `FileStreamSource.getBatch(X, X)`.
## How was this patch tested?
(Please explain how this patch was tested. E.g. unit tests, integration tests, manual tests)
(If this patch involves UI changes, please attach a screenshot; otherwise, remove this)
Please review http://spark.apache.org/contributing.html before opening a pull request.
Closes#23557 from tdas/SPARK-26629.
Authored-by: Tathagata Das <tathagata.das1565@gmail.com>
Signed-off-by: Shixiong Zhu <zsxwing@gmail.com>
## What changes were proposed in this pull request?
Adjust the batch write API to match the read API refactor after https://github.com/apache/spark/pull/23086
The doc with high-level ideas:
https://docs.google.com/document/d/1vI26UEuDpVuOjWw4WPoH2T6y8WAekwtI7qoowhOFnI4/edit?usp=sharing
Basically it renames `BatchWriteSupportProvider` to `SupportsBatchWrite`, and make it extend `Table`. Renames `WriteSupport` to `Write`. It also cleans up some code as batch API is completed.
This PR also removes the test from https://github.com/apache/spark/pull/22688 . Now data source must return a table for read/write.
A few notes about future changes:
1. We will create `SupportsStreamingWrite` later for streaming APIs
2. We will create `SupportsBatchReplaceWhere`, `SupportsBatchAppend`, etc. for the new end-user write APIs. I think streaming APIs would remain to use `OutputMode`, and new end-user write APIs will apply to batch only, at least in the near future.
3. We will remove `SaveMode` from data source API: https://issues.apache.org/jira/browse/SPARK-26356
## How was this patch tested?
existing tests
Closes#23208 from cloud-fan/refactor-batch.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
This PR contains benchmarks for `In` and `InSet` expressions. They cover literals of different data types and will help us to decide where to integrate the switch-based logic for bytes/shorts/ints.
As discussed in [PR-23171](https://github.com/apache/spark/pull/23171), one potential approach is to convert `In` to `InSet` if all elements are literals independently of data types and the number of elements. According to the results of this PR, we might want to keep the threshold for the number of elements. The if-else approach approach might be faster for some data types on a small number of elements (structs? arrays? small decimals?).
### byte / short / int / long
Unless the number of items is really big, `InSet` is slower than `In` because of autoboxing .
Interestingly, `In` scales worse on bytes/shorts than on ints/longs. For example, `InSet` starts to match the performance on around 50 bytes/shorts while this does not happen on the same number of ints/longs. This is a bit strange as shorts/bytes (e.g., `(byte) 1`, `(short) 2`) are represented as ints in the bytecode.
### float / double
Use cases on floats/doubles also suffer from autoboxing. Therefore, `In` outperforms `InSet` on 10 elements.
Similarly to shorts/bytes, `In` scales worse on floats/doubles than on ints/longs because the equality condition is more complicated (e.g., `java.lang.Float.isNaN(filter_valueArg_0) && java.lang.Float.isNaN(9.0F)) || filter_valueArg_0 == 9.0F`).
### decimal
The reason why we have separate benchmarks for small and large decimals is that Spark might use longs to represent decimals in some cases.
If this optimization happens, then `equals` will be nothing else as comparing longs. If this does not happen, Spark will create an instance of `scala.BigDecimal` and use it for comparisons. The latter is more expensive.
`Decimal$hashCode` will always use `scala.BigDecimal$hashCode` even if the number is small enough to fit into a long variable. As a consequence, we see that use cases on small decimals are faster with `In` as they are using long comparisons under the hood. Large decimal values are always faster with `InSet`.
### string
`UTF8String$equals` is not cheap. Therefore, `In` does not really outperform `InSet` as in previous use cases.
### timestamp / date
Under the hood, timestamp/date values will be represented as long/int values. So, `In` allows us to avoid autoboxing.
### array
Arrays are working as expected. `In` is faster on 5 elements while `InSet` is faster on 15 elements. The benchmarks are using `UnsafeArrayData`.
### struct
`InSet` is always faster than `In` for structs. These benchmarks use `GenericInternalRow`.
Closes#23291 from aokolnychyi/spark-26203.
Lead-authored-by: Anton Okolnychyi <aokolnychyi@apple.com>
Co-authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
This PR reverts #22938 per discussion in #23325Closes#23325Closes#23543 from MaxGekk/return-nulls-from-json-parser.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to switch on `TimestampFormatter`/`DateFormatter` in casting dates/timestamps to strings. The changes should make the date/timestamp casting consistent to JSON/CSV datasources and time-related functions like `to_date`, `to_unix_timestamp`/`from_unixtime`.
Local formatters are moved out from `DateTimeUtils` to where they are actually used. It allows to avoid re-creation of new formatter instance per-each call. Another reason is to have separate parser for `PartitioningUtils` because default parsing pattern cannot be used (expected optional section `[.S]`).
## How was this patch tested?
It was tested by `DateTimeUtilsSuite`, `CastSuite` and `JDBC*Suite`.
Closes#23391 from MaxGekk/thread-local-date-format.
Lead-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Make sure broadcast hint is applied to partitioned tables.
## How was this patch tested?
- A new unit test in PruneFileSourcePartitionsSuite
- Unit test suites touched by SPARK-14581: JoinOptimizationSuite, FilterPushdownSuite, ColumnPruningSuite, and PruneFiltersSuite
Closes#23507 from jzhuge/SPARK-26576.
Closes#23530 from jzhuge/SPARK-26576-master.
Authored-by: John Zhuge <jzhuge@apache.org>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
This is to fix a bug in #23036 that would cause a join hint to be applied on node it is not supposed to after join reordering. For example,
```
val join = df.join(df, "id")
val broadcasted = join.hint("broadcast")
val join2 = join.join(broadcasted, "id").join(broadcasted, "id")
```
There should only be 2 broadcast hints on `join2`, but after join reordering there would be 4. It is because the hint application in join reordering compares the attribute set for testing relation equivalency.
Moreover, it could still be problematic even if the child relations were used in testing relation equivalency, due to the potential exprId conflict in nested self-join.
As a result, this PR simply reverts the join reorder hint behavior change introduced in #23036, which means if a join hint is present, the join node itself will not participate in the join reordering, while the sub-joins within its children still can.
## How was this patch tested?
Added new tests
Closes#23524 from maryannxue/query-hint-followup-2.
Authored-by: maryannxue <maryannxue@apache.org>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
When creating some unsafe projections, Spark rebuilds the map of schema attributes once for each expression in the projection. Some file format readers create one unsafe projection per input file, others create one per task. ProjectExec also creates one unsafe projection per task. As a result, for wide queries on wide tables, Spark might build the map of schema attributes hundreds of thousands of times.
This PR changes two functions to reuse the same AttributeSeq instance when creating BoundReference objects for each expression in the projection. This avoids the repeated rebuilding of the map of schema attributes.
### Benchmarks
The time saved by this PR depends on size of the schema, size of the projection, number of input files (or number of file splits), number of tasks, and file format. I chose a couple of example cases.
In the following tests, I ran the query
```sql
select * from table where id1 = 1
```
Matching rows are about 0.2% of the table.
#### Orc table 6000 columns, 500K rows, 34 input files
baseline | pr | improvement
----|----|----
1.772306 min | 1.487267 min | 16.082943%
#### Orc table 6000 columns, 500K rows, *17* input files
baseline | pr | improvement
----|----|----
1.656400 min | 1.423550 min | 14.057595%
#### Orc table 60 columns, 50M rows, 34 input files
baseline | pr | improvement
----|----|----
0.299878 min | 0.290339 min | 3.180926%
#### Parquet table 6000 columns, 500K rows, 34 input files
baseline | pr | improvement
----|----|----
1.478306 min | 1.373728 min | 7.074165%
Note: The parquet reader does not create an unsafe projection. However, the filter operation in the query causes the planner to add a ProjectExec, which does create an unsafe projection for each task. So these results have nothing to do with Parquet itself.
#### Parquet table 60 columns, 50M rows, 34 input files
baseline | pr | improvement
----|----|----
0.245006 min | 0.242200 min | 1.145099%
#### CSV table 6000 columns, 500K rows, 34 input files
baseline | pr | improvement
----|----|----
2.390117 min | 2.182778 min | 8.674844%
#### CSV table 60 columns, 50M rows, 34 input files
baseline | pr | improvement
----|----|----
1.520911 min | 1.510211 min | 0.703526%
## How was this patch tested?
SQL unit tests
Python core and SQL test
Closes#23392 from bersprockets/norebuild.
Authored-by: Bruce Robbins <bersprockets@gmail.com>
Signed-off-by: Herman van Hovell <hvanhovell@databricks.com>
## What changes were proposed in this pull request?
The SQL config `spark.sql.legacy.timeParser.enabled` was removed by https://github.com/apache/spark/pull/23495. The PR cleans up the SQL migration guide and the comment for `UnixTimestamp`.
Closes#23529 from MaxGekk/get-rid-off-legacy-parser-followup.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
If users set equivalent values to spark.network.timeout and spark.executor.heartbeatInterval, they get the following message:
```
java.lang.IllegalArgumentException: requirement failed: The value of spark.network.timeout=120s must be no less than the value of spark.executor.heartbeatInterval=120s.
```
But it's misleading since it can be read as they could be equal. So this PR replaces "no less than" with "greater than". Also, it fixes similar inconsistencies found in MLlib and SQL components.
## How was this patch tested?
Ran Spark with equivalent values for them manually and confirmed that the revised message was displayed.
Closes#23488 from sekikn/SPARK-26564.
Authored-by: Kengo Seki <sekikn@apache.org>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
When determining CatalystType for postgres columns with type `numeric[]` set the type of array element to `DecimalType(38, 18)` instead of `DecimalType(0,0)`.
## How was this patch tested?
Tested with modified `org.apache.spark.sql.jdbc.JDBCSuite`.
Ran the `PostgresIntegrationSuite` manually.
Closes#23456 from a-shkarupin/postgres_numeric_array.
Lead-authored-by: Oleksii Shkarupin <a.shkarupin@gmail.com>
Co-authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
The vote of final release of `branch-2.2` passed and the branch goes EOL. This PR removes Spark 2.2.x from the testing coverage.
## How was this patch tested?
Pass the Jenkins.
Closes#23526 from dongjoon-hyun/SPARK-26607.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
Fix race condition where streams can have unexpected conf values.
New streaming queries should run with isolated SparkSessions so that they aren't affected by conf updates after they are started. In StreamExecution, the parent SparkSession is cloned and used to run each batch, but this cloning happens in a separate thread and may happen after DataStreamWriter.start() returns. If a stream is started and a conf key is set immediately after, the stream is likely to have the new value.
## How was this patch tested?
New unit test that fails prior to the production change and passes with it.
Please review http://spark.apache.org/contributing.html before opening a pull request.
Closes#23513 from mukulmurthy/26586.
Authored-by: Mukul Murthy <mukul.murthy@gmail.com>
Signed-off-by: Shixiong Zhu <zsxwing@gmail.com>
## What changes were proposed in this pull request?
Schema pruning has errors when selecting one complex field and having is not null predicate on another one:
```scala
val query = sql("select * from contacts")
.where("name.middle is not null")
.select(
"id",
"name.first",
"name.middle",
"name.last"
)
.where("last = 'Jones'")
.select(count("id"))
```
```
java.lang.IllegalArgumentException: middle does not exist. Available: last
[info] at org.apache.spark.sql.types.StructType.$anonfun$fieldIndex$1(StructType.scala:303)
[info] at scala.collection.immutable.Map$Map1.getOrElse(Map.scala:119)
[info] at org.apache.spark.sql.types.StructType.fieldIndex(StructType.scala:302)
[info] at org.apache.spark.sql.execution.ProjectionOverSchema.$anonfun$getProjection$6(ProjectionOverSchema.scala:58)
[info] at scala.Option.map(Option.scala:163)
[info] at org.apache.spark.sql.execution.ProjectionOverSchema.getProjection(ProjectionOverSchema.scala:56)
[info] at org.apache.spark.sql.execution.ProjectionOverSchema.unapply(ProjectionOverSchema.scala:32)
[info] at org.apache.spark.sql.execution.datasources.parquet.ParquetSchemaPruning$$anonfun$$nestedInanonfun$buildNewProjection$1$1.applyOrElse(Parque
tSchemaPruning.scala:153)
```
## How was this patch tested?
Added tests.
Closes#23474 from viirya/SPARK-26551.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: DB Tsai <d_tsai@apple.com>
## What changes were proposed in this pull request?
The PR makes hardcoded configs below to use `ConfigEntry`.
* spark.ui
* spark.ssl
* spark.authenticate
* spark.master.rest
* spark.master.ui
* spark.metrics
* spark.admin
* spark.modify.acl
This patch doesn't change configs which are not relevant to SparkConf (e.g. system properties).
## How was this patch tested?
Existing tests.
Closes#23423 from HeartSaVioR/SPARK-26466.
Authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan@gmail.com>
Signed-off-by: Marcelo Vanzin <vanzin@cloudera.com>
## What changes were proposed in this pull request?
Per discussion in #23391 (comment) this proposes to just remove the old pre-Spark-3 time parsing behavior.
This is a rebase of https://github.com/apache/spark/pull/23411
## How was this patch tested?
Existing tests.
Closes#23495 from srowen/SPARK-26503.2.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In https://github.com/apache/spark/pull/22732 , we tried our best to keep the behavior of Scala UDF unchanged in Spark 2.4.
However, since Spark 3.0, Scala 2.12 is the default. The trick that was used to keep the behavior unchanged doesn't work with Scala 2.12.
This PR proposes to remove the Scala 2.11 hack, as it's not useful.
## How was this patch tested?
existing tests.
Closes#23498 from cloud-fan/udf.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR aims to remove internal ORC configuration to simplify the code path for Spark 3.0.0. This removes the configuration `spark.sql.orc.copyBatchToSpark` and related ORC codes including tests and benchmarks.
## How was this patch tested?
Pass the Jenkins with the reduced test coverage.
Closes#23503 from dongjoon-hyun/SPARK-26584.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
Remove spark.memory.useLegacyMode and StaticMemoryManager. Update tests that used the StaticMemoryManager to equivalent use of UnifiedMemoryManager.
## How was this patch tested?
Existing tests, with modifications to make them work with a different mem manager.
Closes#23457 from srowen/SPARK-26539.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This is a followup of https://github.com/apache/spark/pull/18576
The newly added rule `UpdateNullabilityInAttributeReferences` does the same thing the `FixNullability` does, we only need to keep one of them.
This PR removes `UpdateNullabilityInAttributeReferences`, and use `FixNullability` to replace it. Also rename it to `UpdateAttributeNullability`
## How was this patch tested?
existing tests
Closes#23390 from cloud-fan/nullable.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
Added a cache for java.time.format.DateTimeFormatter instances with keys consist of pattern and locale. This should allow to avoid parsing of timestamp/date patterns each time when new instance of `TimestampFormatter`/`DateFormatter` is created.
## How was this patch tested?
By existing test suites `TimestampFormatterSuite`/`DateFormatterSuite` and `JsonFunctionsSuite`/`JsonSuite`.
Closes#23462 from MaxGekk/time-formatter-caching.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Allow multiple spark.sql.extensions to be specified in the
configuration.
## How was this patch tested?
New tests are added.
Closes#23398 from jamisonbennett/SPARK-26493.
Authored-by: Jamison Bennett <jamison.bennett@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This is to fix a bug in https://github.com/apache/spark/pull/23036, which would lead to an exception in case of two consecutive hints.
## How was this patch tested?
Added a new test.
Closes#23501 from maryannxue/query-hint-followup.
Authored-by: maryannxue <maryannxue@apache.org>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
In https://github.com/apache/spark/pull/23043 , we introduced a behavior change: Spark users are not able to distinguish 0.0 and -0.0 anymore.
This PR proposes an alternative fix to the original bug, to retain the difference between 0.0 and -0.0 inside Spark.
The idea is, we can rewrite the window partition key, join key and grouping key during logical phase, to normalize the special floating numbers. Thus only operators care about special floating numbers need to pay the perf overhead, and end users can distinguish -0.0.
## How was this patch tested?
existing test
Closes#23388 from cloud-fan/minor.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
Refactor ExternalAppendOnlyUnsafeRowArrayBenchmark to use main method.
## How was this patch tested?
Manually tested and regenerated results.
Please note that `spark.memory.debugFill` setting has a huge impact on this benchmark. Since it is set to true by default when running the benchmark from SBT, we need to disable it:
```
SPARK_GENERATE_BENCHMARK_FILES=1 build/sbt ";project sql;set javaOptions in Test += \"-Dspark.memory.debugFill=false\";test:runMain org.apache.spark.sql.execution.ExternalAppendOnlyUnsafeRowArrayBenchmark"
```
Closes#22617 from peter-toth/SPARK-25484.
Lead-authored-by: Peter Toth <peter.toth@gmail.com>
Co-authored-by: Peter Toth <ptoth@hortonworks.com>
Co-authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
Currently Spark table maintains Hive catalog storage format, so that Hive client can read it. In `HiveSerDe.scala`, Spark uses a mapping from its data source to HiveSerde. The mapping is old, we need to update with latest canonical name of Parquet and Orc FileFormat.
Otherwise the following queries will result in wrong Serde value in Hive table(default value `org.apache.hadoop.mapred.SequenceFileInputFormat`), and Hive client will fail to read the output table:
```
df.write.format("org.apache.spark.sql.execution.datasources.parquet.ParquetFileFormat").saveAsTable(..)
```
```
df.write.format("org.apache.spark.sql.execution.datasources.orc.OrcFileFormat").saveAsTable(..)
```
This minor PR is to fix the mapping.
## How was this patch tested?
Unit test.
Closes#23491 from gengliangwang/fixHiveSerdeMap.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
Currently there is code scattered in a bunch of places to do different
things related to HTTP security, such as access control, setting
security-related headers, and filtering out bad content. This makes it
really easy to miss these things when writing new UI code.
This change creates a new filter that does all of those things, and
makes sure that all servlet handlers that are attached to the UI get
the new filter and any user-defined filters consistently. The extent
of the actual features should be the same as before.
The new filter is added at the end of the filter chain, because authentication
is done by custom filters and thus needs to happen first. This means that
custom filters see unfiltered HTTP requests - which is actually the current
behavior anyway.
As a side-effect of some of the code refactoring, handlers added after
the initial set also get wrapped with a GzipHandler, which didn't happen
before.
Tested with added unit tests and in a history server with SPNEGO auth
configured.
Closes#23302 from vanzin/SPARK-24522.
Authored-by: Marcelo Vanzin <vanzin@cloudera.com>
Signed-off-by: Imran Rashid <irashid@cloudera.com>
## What changes were proposed in this pull request?
Fixing leap year calculations for date operators (year/month/dayOfYear) where the Julian calendars are used (before 1582-10-04). In a Julian calendar every years which are multiples of 4 are leap years (there is no extra exception for years multiples of 100).
## How was this patch tested?
With a unit test ("SPARK-26002: correct day of year calculations for Julian calendar years") which focuses to these corner cases.
Manually:
```
scala> sql("select year('1500-01-01')").show()
+------------------------------+
|year(CAST(1500-01-01 AS DATE))|
+------------------------------+
| 1500|
+------------------------------+
scala> sql("select dayOfYear('1100-01-01')").show()
+-----------------------------------+
|dayofyear(CAST(1100-01-01 AS DATE))|
+-----------------------------------+
| 1|
+-----------------------------------+
```
Closes#23000 from attilapiros/julianOffByDays.
Authored-by: “attilapiros” <piros.attila.zsolt@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
For Scala UDF, when checking input nullability, we will skip inputs with type `Any`, and only check the inputs that provide nullability info.
We should do the same for checking input types.
## How was this patch tested?
new tests
Closes#23275 from cloud-fan/udf.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
The PR https://github.com/apache/spark/pull/23446 happened to introduce a behaviour change - empty dataframes can't be read anymore from underscore files. It looks controversial to allow or disallow this case so this PR targets to fix to issue warning instead of throwing an exception to be more conservative.
**Before**
```scala
scala> spark.read.schema("a int").parquet("_tmp*").show()
org.apache.spark.sql.AnalysisException: All paths were ignored:
file:/.../_tmp
file:/.../_tmp1;
at org.apache.spark.sql.execution.datasources.DataSource.checkAndGlobPathIfNecessary(DataSource.scala:570)
at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:360)
at org.apache.spark.sql.DataFrameReader.loadV1Source(DataFrameReader.scala:231)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:219)
at org.apache.spark.sql.DataFrameReader.parquet(DataFrameReader.scala:651)
at org.apache.spark.sql.DataFrameReader.parquet(DataFrameReader.scala:635)
... 49 elided
scala> spark.read.text("_tmp*").show()
org.apache.spark.sql.AnalysisException: All paths were ignored:
file:/.../_tmp
file:/.../_tmp1;
at org.apache.spark.sql.execution.datasources.DataSource.checkAndGlobPathIfNecessary(DataSource.scala:570)
at org.apache.spark.sql.execution.datasources.DataSource.resolveRelation(DataSource.scala:360)
at org.apache.spark.sql.DataFrameReader.loadV1Source(DataFrameReader.scala:231)
at org.apache.spark.sql.DataFrameReader.load(DataFrameReader.scala:219)
at org.apache.spark.sql.DataFrameReader.text(DataFrameReader.scala:723)
at org.apache.spark.sql.DataFrameReader.text(DataFrameReader.scala:695)
... 49 elided
```
**After**
```scala
scala> spark.read.schema("a int").parquet("_tmp*").show()
19/01/07 15:14:43 WARN DataSource: All paths were ignored:
file:/.../_tmp
file:/.../_tmp1
+---+
| a|
+---+
+---+
scala> spark.read.text("_tmp*").show()
19/01/07 15:14:51 WARN DataSource: All paths were ignored:
file:/.../_tmp
file:/.../_tmp1
+-----+
|value|
+-----+
+-----+
```
## How was this patch tested?
Manually tested as above.
Closes#23481 from HyukjinKwon/SPARK-26339.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
The PR makes hardcoded `spark.test` and `spark.testing` configs to use `ConfigEntry` and put them in the config package.
## How was this patch tested?
existing UTs
Closes#23413 from mgaido91/SPARK-26491.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Marcelo Vanzin <vanzin@cloudera.com>
## What changes were proposed in this pull request?
The existing query hint implementation relies on a logical plan node `ResolvedHint` to store query hints in logical plans, and on `Statistics` in physical plans. Since `ResolvedHint` is not really a logical operator and can break the pattern matching for existing and future optimization rules, it is a issue to the Optimizer as the old `AnalysisBarrier` was to the Analyzer.
Given the fact that all our query hints are either 1) a join hint, i.e., broadcast hint; or 2) a re-partition hint, which is indeed an operator, we only need to add a hint field on the Join plan and that will be a good enough solution for the current hint usage.
This PR is to let `Join` node have a hint for its left sub-tree and another hint for its right sub-tree and each hint is a merged result of all the effective hints specified in the corresponding sub-tree. The "effectiveness" of a hint, i.e., whether that hint should be propagated to the `Join` node, is currently consistent with the hint propagation rules originally implemented in the `Statistics` approach. Note that the `ResolvedHint` node still has to live through the analysis stage because of the `Dataset` interface, but it will be got rid of and moved to the `Join` node in the "pre-optimization" stage.
This PR also introduces a change in how hints work with join reordering. Before this PR, hints would stop join reordering. For example, in "a.join(b).join(c).hint("broadcast").join(d)", the broadcast hint would stop d from participating in the cost-based join reordering while still allowing reordering from under the hint node. After this PR, though, the broadcast hint will not interfere with join reordering at all, and after reordering if a relation associated with a hint stays unchanged or equivalent to the original relation, the hint will be retained, otherwise will be discarded. For example, the original plan is like "a.join(b).hint("broadcast").join(c).hint("broadcast").join(d)", thus the join order is "a JOIN b JOIN c JOIN d". So if after reordering the join order becomes "a JOIN b JOIN (c JOIN d)", the plan will be like "a.join(b).hint("broadcast").join(c.join(d))"; but if after reordering the join order becomes "a JOIN c JOIN b JOIN d", the plan will be like "a.join(c).join(b).hint("broadcast").join(d)".
## How was this patch tested?
Added new tests.
Closes#23036 from maryannxue/query-hint.
Authored-by: maryannxue <maryannxue@apache.org>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
### What changes were proposed in this pull request?
When passing wrong url to jdbc then It would throw IllegalArgumentException instead of NPE.
### How was this patch tested?
Adding test case to Existing tests in JDBCSuite
Closes#23464 from ayudovin/fixing-npe.
Authored-by: ayudovin <a.yudovin6695@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
`StreamingReadSupport` is designed to be a `package` interface. Mockito seems to complain during `Maven` testing. This doesn't fail in `sbt` and IntelliJ. For mock-testing purpose, this PR makes it `public` interface and adds explicit comments like `public interface ReadSupport`
```scala
EpochCoordinatorSuite:
*** RUN ABORTED ***
java.lang.IllegalAccessError: tried to
access class org.apache.spark.sql.sources.v2.reader.streaming.StreamingReadSupport
from class org.apache.spark.sql.sources.v2.reader.streaming.ContinuousReadSupport$MockitoMock$58628338
at org.apache.spark.sql.sources.v2.reader.streaming.ContinuousReadSupport$MockitoMock$58628338.<clinit>(Unknown Source)
at sun.reflect.GeneratedSerializationConstructorAccessor632.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.objenesis.instantiator.sun.SunReflectionFactoryInstantiator.newInstance(SunReflectionFactoryInstantiator.java:48)
at org.objenesis.ObjenesisBase.newInstance(ObjenesisBase.java:73)
at org.mockito.internal.creation.instance.ObjenesisInstantiator.newInstance(ObjenesisInstantiator.java:19)
at org.mockito.internal.creation.bytebuddy.SubclassByteBuddyMockMaker.createMock(SubclassByteBuddyMockMaker.java:47)
at org.mockito.internal.creation.bytebuddy.ByteBuddyMockMaker.createMock(ByteBuddyMockMaker.java:25)
at org.mockito.internal.util.MockUtil.createMock(MockUtil.java:35)
at org.mockito.internal.MockitoCore.mock(MockitoCore.java:69)
```
## How was this patch tested?
Pass the Jenkins with Maven build
Closes#23463 from dongjoon-hyun/SPARK-26536-2.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
The `toHiveString()` and `toHiveStructString` methods were removed from `HiveUtils` because they have been already implemented in `HiveResult`. One related test was moved to `HiveResultSuite`.
## How was this patch tested?
By tests from `hive-thriftserver`.
Closes#23466 from MaxGekk/dedup-hive-result-string.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
My pull request #23288 was resolved and merged to master, but it turned out later that my change breaks another regression test. Because we cannot reopen pull request, I create a new pull request here.
Commit 92934b4 is only change after pull request #23288.
`CheckFileExist` was avoided at 239cfa4 after discussing #23288 (comment).
But, that change turned out to be wrong because we should not check if argument checkFileExist is false.
Test 27e42c1de5/sql/core/src/test/scala/org/apache/spark/sql/SQLQuerySuite.scala (L2555)
failed when we avoided checkFileExist, but now successed after commit 92934b4 .
## How was this patch tested?
Both of below tests were passed.
```
testOnly org.apache.spark.sql.execution.datasources.csv.CSVSuite
testOnly org.apache.spark.sql.SQLQuerySuite
```
Closes#23446 from KeiichiHirobe/SPARK-26339.
Authored-by: Hirobe Keiichi <keiichi_hirobe@forcia.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Address SPARK-26548, in Spark 2.4.0, the CacheManager holds a write lock while computing the executedPlan for a cached logicalPlan. In some cases with very large query plans this can be an expensive operation, taking minutes to run. The entire cache is blocked during this time. This PR changes that so the writeLock is only obtained after the executedPlan is generated, this reduces the time the lock is held to just the necessary time when the shared data structure is being updated.
gatorsmile and cloud-fan - You can committed patches in this area before. This is a small incremental change.
## How was this patch tested?
Has been tested on a live system where the blocking was causing major issues and it is working well.
CacheManager has no explicit unit test but is used in many places internally as part of the SharedState.
Closes#23469 from DaveDeCaprio/optimizer-unblocked.
Lead-authored-by: Dave DeCaprio <daved@alum.mit.edu>
Co-authored-by: David DeCaprio <daved@alum.mit.edu>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
The truth table comment in EqualNullSafe incorrectly marked FALSE results as UNKNOWN.
## How was this patch tested?
N/A
Closes#23461 from rednaxelafx/fix-typo.
Authored-by: Kris Mok <kris.mok@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
Added new JSON option `inferTimestamp` (`true` by default) to control inferring of `TimestampType` from string values.
## How was this patch tested?
Add new UT to `JsonInferSchemaSuite`.
Closes#23455 from MaxGekk/json-infer-time-followup.
Authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
While backporting the patch to 2.4/2.3, I realized that the patch introduces unneeded imports (probably leftovers from intermediate changes). This PR removes the useless import.
## How was this patch tested?
NA
Closes#23451 from mgaido91/SPARK-26078_FOLLOWUP.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
This PR upgrades Mockito from 1.10.19 to 2.23.4. The following changes are required.
- Replace `org.mockito.Matchers` with `org.mockito.ArgumentMatchers`
- Replace `anyObject` with `any`
- Replace `getArgumentAt` with `getArgument` and add type annotation.
- Use `isNull` matcher in case of `null` is invoked.
```scala
saslHandler.channelInactive(null);
- verify(handler).channelInactive(any(TransportClient.class));
+ verify(handler).channelInactive(isNull());
```
- Make and use `doReturn` wrapper to avoid [SI-4775](https://issues.scala-lang.org/browse/SI-4775)
```scala
private def doReturn(value: Any) = org.mockito.Mockito.doReturn(value, Seq.empty: _*)
```
## How was this patch tested?
Pass the Jenkins with the existing tests.
Closes#23452 from dongjoon-hyun/SPARK-26536.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
Increase test memory to avoid OOM in TimSort-related tests.
## How was this patch tested?
Existing tests.
Closes#23425 from srowen/SPARK-26306.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Test case in SPARK-10316 is used to make sure non-deterministic `Filter` won't be pushed through `Project`
But in current code base this test case can't cover this purpose.
Change LogicalRDD to HadoopFsRelation can fix this issue.
## How was this patch tested?
Modified test pass.
Closes#23440 from LinhongLiu/fix-test.
Authored-by: Liu,Linhong <liulinhong@baidu.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Currently OrcColumnarBatchReader returns all the partition column values in the batch read.
In data source V2, we can improve it by returning the required partition column values only.
This PR is part of https://github.com/apache/spark/pull/23383 . As cloud-fan suggested, create a new PR to make review easier.
Also, this PR doesn't improve `OrcFileFormat`, since in the method `buildReaderWithPartitionValues`, the `requiredSchema` filter out all the partition columns, so we can't know which partition column is required.
## How was this patch tested?
Unit test
Closes#23387 from gengliangwang/refactorOrcColumnarBatch.
Lead-authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Co-authored-by: Gengliang Wang <ltnwgl@gmail.com>
Co-authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
`testExactCaseQueryPruning` and `testMixedCaseQueryPruning` don't need to set up `PARQUET_VECTORIZED_READER_ENABLED` config. Because `withMixedCaseData` will run against both Spark vectorized reader and Parquet-mr reader.
## How was this patch tested?
Existing test.
Closes#23427 from viirya/fix-parquet-schema-pruning-test.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to move `hiveResultString()` out of `QueryExecution` and put it to a separate object.
Closes#23409 from MaxGekk/hive-result-string.
Lead-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Herman van Hovell <hvanhovell@databricks.com>
## What changes were proposed in this pull request?
This PR fixes `pivot(Column)` can accepts `collection.mutable.WrappedArray`.
Note that we return `collection.mutable.WrappedArray` from `ArrayType`, and `Literal.apply` doesn't support this.
We can unwrap the array and use it for type dispatch.
```scala
val df = Seq(
(2, Seq.empty[String]),
(2, Seq("a", "x")),
(3, Seq.empty[String]),
(3, Seq("a", "x"))).toDF("x", "s")
df.groupBy("x").pivot("s").count().show()
```
Before:
```
Unsupported literal type class scala.collection.mutable.WrappedArray$ofRef WrappedArray()
java.lang.RuntimeException: Unsupported literal type class scala.collection.mutable.WrappedArray$ofRef WrappedArray()
at org.apache.spark.sql.catalyst.expressions.Literal$.apply(literals.scala:80)
at org.apache.spark.sql.RelationalGroupedDataset.$anonfun$pivot$2(RelationalGroupedDataset.scala:427)
at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:237)
at scala.collection.IndexedSeqOptimized.foreach(IndexedSeqOptimized.scala:36)
at scala.collection.IndexedSeqOptimized.foreach$(IndexedSeqOptimized.scala:33)
at scala.collection.mutable.WrappedArray.foreach(WrappedArray.scala:39)
at scala.collection.TraversableLike.map(TraversableLike.scala:237)
at scala.collection.TraversableLike.map$(TraversableLike.scala:230)
at scala.collection.AbstractTraversable.map(Traversable.scala:108)
at org.apache.spark.sql.RelationalGroupedDataset.pivot(RelationalGroupedDataset.scala:425)
at org.apache.spark.sql.RelationalGroupedDataset.pivot(RelationalGroupedDataset.scala:406)
at org.apache.spark.sql.RelationalGroupedDataset.pivot(RelationalGroupedDataset.scala:317)
at org.apache.spark.sql.DataFramePivotSuite.$anonfun$new$1(DataFramePivotSuite.scala:341)
at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
```
After:
```
+---+---+------+
| x| []|[a, x]|
+---+---+------+
| 3| 1| 1|
| 2| 1| 1|
+---+---+------+
```
## How was this patch tested?
Manually tested and unittests were added.
Closes#23349 from HyukjinKwon/SPARK-26403.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
`DataSourceScanExec` overrides "wrong" `treeString` method without `append`. In the PR, I propose to make `treeString`s **final** to prevent such mistakes in the future. And removed the `treeString` and `verboseString` since they both use `simpleString` with reduction.
## How was this patch tested?
It was tested by `DataSourceScanExecRedactionSuite`
Closes#23431 from MaxGekk/datasource-scan-exec-followup.
Authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
In `org.apache.spark.sql.execution.metric.SQLMetricsSuite`, there's a test case named "WholeStageCodegen metrics". However, it is executed with whole-stage codegen disabled. This PR fixes this by enable whole-stage codegen for this test case.
## How was this patch tested?
Tested locally using exiting test cases.
Closes#23224 from seancxmao/codegen-metrics.
Authored-by: seancxmao <seancxmao@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This PR addresses warning messages in Java files reported at [lgtm.com](https://lgtm.com).
[lgtm.com](https://lgtm.com) provides automated code review of Java/Python/JavaScript files for OSS projects. [Here](https://lgtm.com/projects/g/apache/spark/alerts/?mode=list&severity=warning) are warning messages regarding Apache Spark project.
This PR addresses the following warnings:
- Result of multiplication cast to wider type
- Implicit narrowing conversion in compound assignment
- Boxed variable is never null
- Useless null check
NOTE: `Potential input resource leak` looks false positive for now.
## How was this patch tested?
Existing UTs
Closes#23420 from kiszk/SPARK-26508.
Authored-by: Kazuaki Ishizaki <ishizaki@jp.ibm.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Default timestamp pattern defined in `JSONOptions` doesn't allow saving/loading timestamps with time zones of seconds precision. Because of that, the round trip test failed for timestamps before 1582. In the PR, I propose to extend zone offset section from `XXX` to `XXXXX` which should allow to save/load zone offsets like `-07:52:48`.
## How was this patch tested?
It was tested by `JsonHadoopFsRelationSuite` and `TimestampFormatterSuite`.
Closes#23417 from MaxGekk/hadoopfsrelationtest-new-formatter.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
When we operate as below:
`
0: jdbc:hive2://xxx/> create function funnel_analysis as 'com.xxx.hive.extend.udf.UapFunnelAnalysis';
`
`
0: jdbc:hive2://xxx/> select funnel_analysis(1,",",1,'');
Error: org.apache.spark.sql.AnalysisException: Undefined function: 'funnel_analysis'. This function is neither a registered temporary function nor a permanent function registered in the database 'xxx'.; line 1 pos 7 (state=,code=0)
`
`
0: jdbc:hive2://xxx/> describe function funnel_analysis;
+-----------------------------------------------------------+--+
| function_desc |
+-----------------------------------------------------------+--+
| Function: xxx.funnel_analysis |
| Class: com.xxx.hive.extend.udf.UapFunnelAnalysis |
| Usage: N/A. |
+-----------------------------------------------------------+--+
`
We can see describe funtion will get right information,but when we actually use this funtion,we will get an undefined exception.
Which is really misleading,the real cause is below:
`
No handler for Hive UDF 'com.xxx.xxx.hive.extend.udf.UapFunnelAnalysis': java.lang.IllegalStateException: Should not be called directly;
at org.apache.hadoop.hive.ql.udf.generic.GenericUDTF.initialize(GenericUDTF.java:72)
at org.apache.spark.sql.hive.HiveGenericUDTF.outputInspector$lzycompute(hiveUDFs.scala:204)
at org.apache.spark.sql.hive.HiveGenericUDTF.outputInspector(hiveUDFs.scala:204)
at org.apache.spark.sql.hive.HiveGenericUDTF.elementSchema$lzycompute(hiveUDFs.scala:212)
at org.apache.spark.sql.hive.HiveGenericUDTF.elementSchema(hiveUDFs.scala:212)
`
This patch print the actual failure for quick debugging.
## How was this patch tested?
UT
Closes#21790 from caneGuy/zhoukang/print-warning1.
Authored-by: zhoukang <zhoukang199191@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
…Type
## What changes were proposed in this pull request?
Modifed JdbcUtils.makeGetter to handle ByteType.
## How was this patch tested?
Added a new test to JDBCSuite that maps ```TINYINT``` to ```ByteType```.
Closes#23400 from twdsilva/tiny_int_support.
Authored-by: Thomas D'Silva <tdsilva@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
The current `SelectedField` extractor is somewhat complicated and it seems to be handling cases that should be handled automatically:
- `GetArrayItem(child: GetStructFieldObject())`
- `GetArrayStructFields(child: GetArrayStructFields())`
- `GetMap(value: GetStructFieldObject())`
This PR removes those cases and simplifies the extractor by passing down the data type instead of a field.
## How was this patch tested?
Existing tests.
Closes#23397 from hvanhovell/SPARK-26495.
Authored-by: Herman van Hovell <hvanhovell@databricks.com>
Signed-off-by: Herman van Hovell <hvanhovell@databricks.com>
## What changes were proposed in this pull request?
As the description in SPARK-26339, spark.read behavior is very confusing when reading files that start with underscore, fix this by throwing exception which message is "Path does not exist".
## How was this patch tested?
manual tests.
Both of codes below throws exception which message is "Path does not exist".
```
spark.read.csv("/home/forcia/work/spark/_test.csv")
spark.read.schema("test STRING, number INT").csv("/home/forcia/work/spark/_test.csv")
```
Closes#23288 from KeiichiHirobe/SPARK-26339.
Authored-by: Hirobe Keiichi <keiichi_hirobe@forcia.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Proposed new class `StringConcat` for converting a sequence of strings to string with one memory allocation in the `toString` method. `StringConcat` replaces `StringBuilderWriter` in methods of dumping of Spark plans and codegen to strings.
All `Writer` arguments are replaced by `String => Unit` in methods related to Spark plans stringification.
## How was this patch tested?
It was tested by existing suites `QueryExecutionSuite`, `DebuggingSuite` as well as new tests for `StringConcat` in `StringUtilsSuite`.
Closes#23406 from MaxGekk/rope-plan.
Authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Herman van Hovell <hvanhovell@databricks.com>
## What changes were proposed in this pull request?
#20560/[SPARK-23375](https://issues.apache.org/jira/browse/SPARK-23375) introduced an optimizer rule to eliminate redundant Sort. For a test case named "Sort metrics" in `SQLMetricsSuite`, because range is already sorted, sort is removed by the `RemoveRedundantSorts`, which makes this test case meaningless.
This PR modifies the query for testing Sort metrics and checks Sort exists in the plan.
## How was this patch tested?
Modify the existing test case.
Closes#23258 from seancxmao/sort-metrics.
Authored-by: seancxmao <seancxmao@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Similar with https://github.com/apache/spark/pull/21446. Looks random string is not quite safe as a directory name.
```scala
scala> val prefix = Random.nextString(10); val dir = new File("/tmp", "del_" + prefix + "-" + UUID.randomUUID.toString); dir.mkdirs()
prefix: String = 窽텘⒘駖ⵚ駢⡞Ρ닋
dir: java.io.File = /tmp/del_窽텘⒘駖ⵚ駢⡞Ρ닋-a3f99855-c429-47a0-a108-47bca6905745
res40: Boolean = false // nope, didn't like this one
```
## How was this patch tested?
Unit test was added, and manually.
Closes#23405 from HyukjinKwon/SPARK-26496.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
This PR fixes the codegen bug introduced by #23358 .
- https://amplab.cs.berkeley.edu/jenkins/view/Spark%20QA%20Test%20(Dashboard)/job/spark-master-test-maven-hadoop-2.7-ubuntu-scala-2.11/158/
```
Line 44, Column 93: A method named "apply" is not declared in any enclosing class
nor any supertype, nor through a static import
```
## How was this patch tested?
Manual. `DateExpressionsSuite` should be passed with Scala-2.11.
Closes#23394 from dongjoon-hyun/SPARK-26424.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
Currently the `AttributeReference.withMetadata` method have return type `Attribute`, the rest of with methods in the `AttributeReference` return type are `AttributeReference`, as the [spark-25892](https://issues.apache.org/jira/browse/SPARK-25892?jql=project%20%3D%20SPARK%20AND%20component%20in%20(ML%2C%20PySpark%2C%20SQL)) mentioned.
This PR will change `AttributeReference.withMetadata` method's return type from `Attribute` to `AttributeReference`.
## How was this patch tested?
Run all `sql/test,` `catalyst/test` and `org.apache.spark.sql.execution.streaming.*`
Closes#22918 from kevinyu98/spark-25892.
Authored-by: Kevin Yu <qyu@us.ibm.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
In the PR, I propose to add `maxFields` parameter to all functions involved in creation of textual representation of spark plans such as `simpleString` and `verboseString`. New parameter restricts number of fields converted to truncated strings. Any elements beyond the limit will be dropped and replaced by a `"... N more fields"` placeholder. The threshold is bumped up to `Int.MaxValue` for `toFile()`.
## How was this patch tested?
Added a test to `QueryExecutionSuite` which checks `maxFields` impacts on number of truncated fields in `LocalRelation`.
Closes#23159 from MaxGekk/to-file-max-fields.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Herman van Hovell <hvanhovell@databricks.com>
## What changes were proposed in this pull request?
Spark SQL doesn't support creating partitioned table using Hive CTAS in SQL syntax. However it is supported by using DataFrameWriter API.
```scala
val df = Seq(("a", 1)).toDF("part", "id")
df.write.format("hive").partitionBy("part").saveAsTable("t")
```
Hive begins to support this syntax in newer version: https://issues.apache.org/jira/browse/HIVE-20241:
```
CREATE TABLE t PARTITIONED BY (part) AS SELECT 1 as id, "a" as part
```
This patch adds this support to SQL syntax.
## How was this patch tested?
Added tests.
Closes#23376 from viirya/hive-ctas-partitioned-table.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to switch the `DateFormatClass`, `ToUnixTimestamp`, `FromUnixTime`, `UnixTime` on java.time API for parsing/formatting dates and timestamps. The API has been already implemented by the `Timestamp`/`DateFormatter` classes. One of benefit is those classes support parsing timestamps with microsecond precision. Old behaviour can be switched on via SQL config: `spark.sql.legacy.timeParser.enabled` (`false` by default).
## How was this patch tested?
It was tested by existing test suites - `DateFunctionsSuite`, `DateExpressionsSuite`, `JsonSuite`, `CsvSuite`, `SQLQueryTestSuite` as well as PySpark tests.
Closes#23358 from MaxGekk/new-time-cast.
Lead-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
fix ExpresionInfo assert error in windows operation system, when running unit tests.
## How was this patch tested?
unit tests
Closes#23363 from yanlin-Lynn/unit-test-windows.
Authored-by: wangyanlin01 <wangyanlin01@baidu.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Variation of https://github.com/apache/spark/pull/20500
I cheated by not referencing fields or columns at all as this exception propagates in contexts where both would be applicable.
## How was this patch tested?
Existing tests
Closes#23373 from srowen/SPARK-14023.2.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
The PRs #23150 and #23196 switched JSON and CSV datasources on new formatter for dates/timestamps which is based on `DateTimeFormatter`. In this PR, I replaced `SimpleDateFormat` by `DateTimeFormatter` to reflect the changes.
Closes#23374 from MaxGekk/java-time-docs.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
GetStructField with different optional names should be semantically equal. We will use this as building block to compare the nested fields used in the plans to be optimized by catalyst optimizer.
This PR also fixes a bug below that accessing nested fields with different cases in case insensitive mode will result `AnalysisException`.
```
sql("create table t (s struct<i: Int>) using json")
sql("select s.I from t group by s.i")
```
which is currently failing
```
org.apache.spark.sql.AnalysisException: expression 'default.t.`s`' is neither present in the group by, nor is it an aggregate function
```
as cloud-fan pointed out.
## How was this patch tested?
New tests are added.
Closes#23353 from dbtsai/nestedEqual.
Lead-authored-by: DB Tsai <d_tsai@apple.com>
Co-authored-by: DB Tsai <dbtsai@dbtsai.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
This patch adds explanation of `why "spark.sql.shuffle.partitions" keeps unchanged in structured streaming`, which couple of users already wondered and some of them even thought it as a bug.
This patch would help other end users to know about such behavior before they find by theirselves and being wondered.
## How was this patch tested?
No need to test because this is a simple addition on guide doc with markdown editor.
Closes#22238 from HeartSaVioR/SPARK-25245.
Lead-authored-by: Jungtaek Lim <kabhwan@gmail.com>
Co-authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Use of `ProcessingTime` class was deprecated in favor of `Trigger.ProcessingTime` in Spark 2.2. And, [SPARK-21464](https://issues.apache.org/jira/browse/SPARK-21464) minimized it at 2.2.1. Recently, it grows again in test suites. This PR aims to clean up newly introduced deprecation warnings for Spark 3.0.
## How was this patch tested?
Pass the Jenkins with existing tests and manually check the warnings.
Closes#23367 from dongjoon-hyun/SPARK-26428.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
A followup of https://github.com/apache/spark/pull/23178 , to keep binary compability by using abstract class.
## How was this patch tested?
Manual test. I created a simple app with Spark 2.4
```
object TryUDF {
def main(args: Array[String]): Unit = {
val spark = SparkSession.builder().appName("test").master("local[*]").getOrCreate()
import spark.implicits._
val f1 = udf((i: Int) => i + 1)
println(f1.deterministic)
spark.range(10).select(f1.asNonNullable().apply($"id")).show()
spark.stop()
}
}
```
When I run it with current master, it fails with
```
java.lang.IncompatibleClassChangeError: Found interface org.apache.spark.sql.expressions.UserDefinedFunction, but class was expected
```
When I run it with this PR, it works
Closes#23351 from cloud-fan/minor.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Currently, even if I explicitly disable Hive support in SparkR session as below:
```r
sparkSession <- sparkR.session("local[4]", "SparkR", Sys.getenv("SPARK_HOME"),
enableHiveSupport = FALSE)
```
produces when the Hadoop version is not supported by our Hive fork:
```
java.lang.reflect.InvocationTargetException
...
Caused by: java.lang.IllegalArgumentException: Unrecognized Hadoop major version number: 3.1.1.3.1.0.0-78
at org.apache.hadoop.hive.shims.ShimLoader.getMajorVersion(ShimLoader.java:174)
at org.apache.hadoop.hive.shims.ShimLoader.loadShims(ShimLoader.java:139)
at org.apache.hadoop.hive.shims.ShimLoader.getHadoopShims(ShimLoader.java:100)
at org.apache.hadoop.hive.conf.HiveConf$ConfVars.<clinit>(HiveConf.java:368)
... 43 more
Error in handleErrors(returnStatus, conn) :
java.lang.ExceptionInInitializerError
at org.apache.hadoop.hive.conf.HiveConf.<clinit>(HiveConf.java:105)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at org.apache.spark.util.Utils$.classForName(Utils.scala:193)
at org.apache.spark.sql.SparkSession$.hiveClassesArePresent(SparkSession.scala:1116)
at org.apache.spark.sql.api.r.SQLUtils$.getOrCreateSparkSession(SQLUtils.scala:52)
at org.apache.spark.sql.api.r.SQLUtils.getOrCreateSparkSession(SQLUtils.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
```
The root cause is that:
```
SparkSession.hiveClassesArePresent
```
check if the class is loadable or not to check if that's in classpath but `org.apache.hadoop.hive.conf.HiveConf` has a check for Hadoop version as static logic which is executed right away. This throws an `IllegalArgumentException` and that's not caught:
36edbac1c8/sql/core/src/main/scala/org/apache/spark/sql/SparkSession.scala (L1113-L1121)
So, currently, if users have a Hive built-in Spark with unsupported Hadoop version by our fork (namely 3+), there's no way to use SparkR even though it could work.
This PR just propose to change the order of bool comparison so that we can don't execute `SparkSession.hiveClassesArePresent` when:
1. `enableHiveSupport` is explicitly disabled
2. `spark.sql.catalogImplementation` is `in-memory`
so that we **only** check `SparkSession.hiveClassesArePresent` when Hive support is explicitly enabled by short circuiting.
## How was this patch tested?
It's difficult to write a test since we don't run tests against Hadoop 3 yet. See https://github.com/apache/spark/pull/21588. Manually tested.
Closes#23356 from HyukjinKwon/SPARK-26422.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
`HadoopFileWholeTextReader` and `HadoopFileLinesReader` will be eventually called in `FileSourceScanExec`.
In fact, locality has been implemented in `FileScanRDD`, even if we implement it in `HadoopFileWholeTextReader ` and `HadoopFileLinesReader`, it would be useless.
So I think these `TODO` can be removed.
## How was this patch tested?
N/A
Closes#23339 from 10110346/noneededtodo.
Authored-by: liuxian <liu.xian3@zte.com.cn>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
`SQLConf` is supposed to be serializable. However, currently it is not serializable in `WithTestConf`. `WithTestConf` uses the method `overrideConfs` in closure, while the classes which implements it (`TestHiveSessionStateBuilder` and `TestSQLSessionStateBuilder`) are not serializable.
This PR is to use a local variable to fix it.
## How was this patch tested?
Add unit test.
Closes#23352 from gengliangwang/serializableSQLConf.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
Currently, when we infer the schema for scala/java decimals, we return as data type the `SYSTEM_DEFAULT` implementation, ie. the decimal type with precision 38 and scale 18. But this is not right, as we know nothing about the right precision and scale and these values can be not enough to store the data. This problem arises in particular with UDF, where we cast all the input of type `DecimalType` to a `DecimalType(38, 18)`: in case this is not enough, null is returned as input for the UDF.
The PR defines a custom handling for casting to the expected data types for ScalaUDF: the decimal precision and scale is picked from the input, so no casting to different and maybe wrong percision and scale happens.
## How was this patch tested?
added UTs
Closes#23308 from mgaido91/SPARK-26308.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Deprecate Row.merge
## How was this patch tested?
N/A
Closes#23271 from KyleLi1985/master.
Authored-by: 李亮 <liang.li.work@outlook.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
In Spark 2.3.0 and previous versions, Hive CTAS command will convert to use data source to write data into the table when the table is convertible. This behavior is controlled by the configs like HiveUtils.CONVERT_METASTORE_ORC and HiveUtils.CONVERT_METASTORE_PARQUET.
In 2.3.1, we drop this optimization by mistake in the PR [SPARK-22977](https://github.com/apache/spark/pull/20521/files#r217254430). Since that Hive CTAS command only uses Hive Serde to write data.
This patch adds this optimization back to Hive CTAS command. This patch adds OptimizedCreateHiveTableAsSelectCommand which uses data source to write data.
## How was this patch tested?
Added test.
Closes#22514 from viirya/SPARK-25271-2.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
For better test coverage, this pr proposed to use the 4 mixed config sets of `WHOLESTAGE_CODEGEN_ENABLED` and `CODEGEN_FACTORY_MODE` when running `SQLQueryTestSuite`:
1. WHOLESTAGE_CODEGEN_ENABLED=true, CODEGEN_FACTORY_MODE=CODEGEN_ONLY
2. WHOLESTAGE_CODEGEN_ENABLED=false, CODEGEN_FACTORY_MODE=CODEGEN_ONLY
3. WHOLESTAGE_CODEGEN_ENABLED=true, CODEGEN_FACTORY_MODE=NO_CODEGEN
4. WHOLESTAGE_CODEGEN_ENABLED=false, CODEGEN_FACTORY_MODE=NO_CODEGEN
This pr also moved some existing tests into `ExplainSuite` because explain output results are different between codegen and interpreter modes.
## How was this patch tested?
Existing tests.
Closes#23213 from maropu/InterpreterModeTest.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This is a small clean up.
By design catalyst rules should be orthogonal: each rule should have its own responsibility. However, the `ColumnPruning` rule does not only do column pruning, but also remove no-op project and window.
This PR updates the `RemoveRedundantProject` rule to remove no-op window as well, and clean up the `ColumnPruning` rule to only do column pruning.
## How was this patch tested?
existing tests
Closes#23343 from cloud-fan/column-pruning.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
In `ReplaceExceptWithFilter` we do not consider properly the case in which the condition returns NULL. Indeed, in that case, since negating NULL still returns NULL, so it is not true the assumption that negating the condition returns all the rows which didn't satisfy it, rows returning NULL may not be returned. This happens when constraints inferred by `InferFiltersFromConstraints` are not enough, as it happens with `OR` conditions.
The rule had also problems with non-deterministic conditions: in such a scenario, this rule would change the probability of the output.
The PR fixes these problem by:
- returning False for the condition when it is Null (in this way we do return all the rows which didn't satisfy it);
- avoiding any transformation when the condition is non-deterministic.
## How was this patch tested?
added UTs
Closes#23315 from mgaido91/SPARK-26366.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
Currently, SQL configs are not propagated to executors while schema inferring in CSV datasource. For example, changing of `spark.sql.legacy.timeParser.enabled` does not impact on inferring timestamp types. In the PR, I propose to fix the issue by wrapping schema inferring action using `SQLExecution.withSQLConfPropagated`.
## How was this patch tested?
Added logging to `TimestampFormatter`:
```patch
-object TimestampFormatter {
+object TimestampFormatter extends Logging {
def apply(format: String, timeZone: TimeZone, locale: Locale): TimestampFormatter = {
if (SQLConf.get.legacyTimeParserEnabled) {
+ logError("LegacyFallbackTimestampFormatter is being used")
new LegacyFallbackTimestampFormatter(format, timeZone, locale)
} else {
+ logError("Iso8601TimestampFormatter is being used")
new Iso8601TimestampFormatter(format, timeZone, locale)
}
}
```
and run the command in `spark-shell`:
```shell
$ ./bin/spark-shell --conf spark.sql.legacy.timeParser.enabled=true
```
```scala
scala> Seq("2010|10|10").toDF.repartition(1).write.mode("overwrite").text("/tmp/foo")
scala> spark.read.option("inferSchema", "true").option("header", "false").option("timestampFormat", "yyyy|MM|dd").csv("/tmp/foo").printSchema()
18/12/18 10:47:27 ERROR TimestampFormatter: LegacyFallbackTimestampFormatter is being used
root
|-- _c0: timestamp (nullable = true)
```
Closes#23345 from MaxGekk/csv-schema-infer-propagate-configs.
Authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This PR proposes to use foreach instead of misuse of map (for Unit). This could cause some weird errors potentially and it's not a good practice anyway. See also SPARK-16694
## How was this patch tested?
N/A
Closes#23341 from HyukjinKwon/followup-SPARK-26081.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
The `JsonInferSchema` class is extended to support `TimestampType` inferring from string fields in JSON input:
- If the `prefersDecimal` option is set to `true`, it tries to infer decimal type from the string field.
- If decimal type inference fails or `prefersDecimal` is disabled, `JsonInferSchema` tries to infer `TimestampType`.
- If timestamp type inference fails, `StringType` is returned as the inferred type.
## How was this patch tested?
Added new test suite - `JsonInferSchemaSuite` to check date and timestamp types inferring from JSON using `JsonInferSchema` directly. A few tests were added `JsonSuite` to check type merging and roundtrip tests. This changes was tested by `JsonSuite`, `JsonExpressionsSuite` and `JsonFunctionsSuite` as well.
Closes#23201 from MaxGekk/json-infer-time.
Lead-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This PR implements a new feature - window aggregation Pandas UDF for bounded window.
#### Doc:
https://docs.google.com/document/d/14EjeY5z4-NC27-SmIP9CsMPCANeTcvxN44a7SIJtZPc/edit#heading=h.c87w44wcj3wj
#### Example:
```
from pyspark.sql.functions import pandas_udf, PandasUDFType
from pyspark.sql.window import Window
df = spark.range(0, 10, 2).toDF('v')
w1 = Window.partitionBy().orderBy('v').rangeBetween(-2, 4)
w2 = Window.partitionBy().orderBy('v').rowsBetween(-2, 2)
pandas_udf('double', PandasUDFType.GROUPED_AGG)
def avg(v):
return v.mean()
df.withColumn('v_mean', avg(df['v']).over(w1)).show()
# +---+------+
# | v|v_mean|
# +---+------+
# | 0| 1.0|
# | 2| 2.0|
# | 4| 4.0|
# | 6| 6.0|
# | 8| 7.0|
# +---+------+
df.withColumn('v_mean', avg(df['v']).over(w2)).show()
# +---+------+
# | v|v_mean|
# +---+------+
# | 0| 2.0|
# | 2| 3.0|
# | 4| 4.0|
# | 6| 5.0|
# | 8| 6.0|
# +---+------+
```
#### High level changes:
This PR modifies the existing WindowInPandasExec physical node to deal with unbounded (growing, shrinking and sliding) windows.
* `WindowInPandasExec` now share the same base class as `WindowExec` and share utility functions. See `WindowExecBase`
* `WindowFunctionFrame` now has two new functions `currentLowerBound` and `currentUpperBound` - to return the lower and upper window bound for the current output row. It is also modified to allow `AggregateProcessor` == null. Null aggregator processor is used for `WindowInPandasExec` where we don't have an aggregator and only uses lower and upper bound functions from `WindowFunctionFrame`
* The biggest change is in `WindowInPandasExec`, where it is modified to take `currentLowerBound` and `currentUpperBound` and write those values together with the input data to the python process for rolling window aggregation. See `WindowInPandasExec` for more details.
#### Discussion
In benchmarking, I found numpy variant of the rolling window UDF is much faster than the pandas version:
Spark SQL window function: 20s
Pandas variant: ~80s
Numpy variant: 10s
Numpy variant with numba: 4s
Allowing numpy variant of the vectorized UDFs is something I want to discuss because of the performance improvement, but doesn't have to be in this PR.
## How was this patch tested?
New tests
Closes#22305 from icexelloss/SPARK-24561-bounded-window-udf.
Authored-by: Li Jin <ice.xelloss@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
SinkProgress should report similar properties like SourceProgress as long as they are available for given Sink. Count of written rows is metric availble for all Sinks. Since relevant progress information is with respect to commited rows, ideal object to carry this info is WriterCommitMessage. For brevity the implementation will focus only on Sinks with API V2 and on Micro Batch mode. Implemention for Continuous mode will be provided at later date.
### Before
```
{"description":"org.apache.spark.sql.kafka010.KafkaSourceProvider3c0bd317"}
```
### After
```
{"description":"org.apache.spark.sql.kafka010.KafkaSourceProvider3c0bd317","numOutputRows":5000}
```
### This PR is related to:
- https://issues.apache.org/jira/browse/SPARK-24647
- https://issues.apache.org/jira/browse/SPARK-21313
## How was this patch tested?
Existing and new unit tests.
Please review http://spark.apache.org/contributing.html before opening a pull request.
Closes#21919 from vackosar/feature/SPARK-24933-numOutputRows.
Lead-authored-by: Vaclav Kosar <admin@vaclavkosar.com>
Co-authored-by: Kosar, Vaclav: Functions Transformation <Vaclav.Kosar@barclayscapital.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
1. rename `FormatterUtils` to `DateTimeFormatterHelper`, and move it to a separated file
2. move `DateFormatter` and its implementation to a separated file
3. mark some methods as private
4. add `override` to some methods
## How was this patch tested?
existing tests
Closes#23329 from cloud-fan/minor.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This PR is a follow-up of the PR https://github.com/apache/spark/pull/17899. It is to add the rule TransposeWindow the optimizer batch.
## How was this patch tested?
The existing tests.
Closes#23222 from gatorsmile/followupSPARK-20636.
Authored-by: gatorsmile <gatorsmile@gmail.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
- The original comment about `updateDriverMetrics` is not right.
- Refactor the code to ensure `selectedPartitions ` has been set before sending the driver-side metrics.
- Restore the original name, which is more general and extendable.
## How was this patch tested?
The existing tests.
Closes#23328 from gatorsmile/followupSpark-26142.
Authored-by: gatorsmile <gatorsmile@gmail.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
The optimizer rule `org.apache.spark.sql.catalyst.optimizer.ReorderJoin` performs join reordering on inner joins. This was introduced from SPARK-12032 (https://github.com/apache/spark/pull/10073) in 2015-12.
After it had reordered the joins, though, it didn't check whether or not the output attribute order is still the same as before. Thus, it's possible to have a mismatch between the reordered output attributes order vs the schema that a DataFrame thinks it has.
The same problem exists in the CBO version of join reordering (`CostBasedJoinReorder`) too.
This can be demonstrated with the example:
```scala
spark.sql("create table table_a (x int, y int) using parquet")
spark.sql("create table table_b (i int, j int) using parquet")
spark.sql("create table table_c (a int, b int) using parquet")
val df = spark.sql("""
with df1 as (select * from table_a cross join table_b)
select * from df1 join table_c on a = x and b = i
""")
```
here's what the DataFrame thinks:
```
scala> df.printSchema
root
|-- x: integer (nullable = true)
|-- y: integer (nullable = true)
|-- i: integer (nullable = true)
|-- j: integer (nullable = true)
|-- a: integer (nullable = true)
|-- b: integer (nullable = true)
```
here's what the optimized plan thinks, after join reordering:
```
scala> df.queryExecution.optimizedPlan.output.foreach(a => println(s"|-- ${a.name}: ${a.dataType.typeName}"))
|-- x: integer
|-- y: integer
|-- a: integer
|-- b: integer
|-- i: integer
|-- j: integer
```
If we exclude the `ReorderJoin` rule (using Spark 2.4's optimizer rule exclusion feature), it's back to normal:
```
scala> spark.conf.set("spark.sql.optimizer.excludedRules", "org.apache.spark.sql.catalyst.optimizer.ReorderJoin")
scala> val df = spark.sql("with df1 as (select * from table_a cross join table_b) select * from df1 join table_c on a = x and b = i")
df: org.apache.spark.sql.DataFrame = [x: int, y: int ... 4 more fields]
scala> df.queryExecution.optimizedPlan.output.foreach(a => println(s"|-- ${a.name}: ${a.dataType.typeName}"))
|-- x: integer
|-- y: integer
|-- i: integer
|-- j: integer
|-- a: integer
|-- b: integer
```
Note that this output attribute ordering problem leads to data corruption, and can manifest itself in various symptoms:
* Silently corrupting data, if the reordered columns happen to either have matching types or have sufficiently-compatible types (e.g. all fixed length primitive types are considered as "sufficiently compatible" in an `UnsafeRow`), then only the resulting data is going to be wrong but it might not trigger any alarms immediately. Or
* Weird Java-level exceptions like `java.lang.NegativeArraySizeException`, or even SIGSEGVs.
## How was this patch tested?
Added new unit test in `JoinReorderSuite` and new end-to-end test in `JoinSuite`.
Also made `JoinReorderSuite` and `StarJoinReorderSuite` assert more strongly on maintaining output attribute order.
Closes#23303 from rednaxelafx/fix-join-reorder.
Authored-by: Kris Mok <rednaxelafx@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
The `CSVInferSchema` class is extended to support inferring of `DateType` from CSV input. The attempt to infer `DateType` is performed after inferring `TimestampType`.
## How was this patch tested?
Added new test for inferring date types from CSV . It was also tested by existing suites like `CSVInferSchemaSuite`, `CsvExpressionsSuite`, `CsvFunctionsSuite` and `CsvSuite`.
Closes#23202 from MaxGekk/csv-date-inferring.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
CSV parsing accidentally uses the previous good value for a bad input field. See example in Jira.
This PR ensures that the associated column is set to null when an input field cannot be converted.
## How was this patch tested?
Added new test.
Ran all SQL unit tests (testOnly org.apache.spark.sql.*).
Ran pyspark tests for pyspark-sql
Closes#23323 from bersprockets/csv-bad-field.
Authored-by: Bruce Robbins <bersprockets@gmail.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
When there is a self-join as result of a IN subquery, the join condition may be invalid, resulting in trivially true predicates and return wrong results.
The PR deduplicates the subquery output in order to avoid the issue.
## How was this patch tested?
added UT
Closes#23057 from mgaido91/SPARK-26078.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to switch on **java.time API** for parsing timestamps and dates from JSON inputs with microseconds precision. The SQL config `spark.sql.legacy.timeParser.enabled` allow to switch back to previous behavior with using `java.text.SimpleDateFormat`/`FastDateFormat` for parsing/generating timestamps/dates.
## How was this patch tested?
It was tested by `JsonExpressionsSuite`, `JsonFunctionsSuite` and `JsonSuite`.
Closes#23196 from MaxGekk/json-time-parser.
Lead-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Multiple SparkContexts are discouraged and it has been warning for last 4 years, see SPARK-4180. It could cause arbitrary and mysterious error cases, see SPARK-2243.
Honestly, I didn't even know Spark still allows it, which looks never officially supported, see SPARK-2243.
I believe It should be good timing now to remove this configuration.
## How was this patch tested?
Each doc was manually checked and manually tested:
```
$ ./bin/spark-shell --conf=spark.driver.allowMultipleContexts=true
...
scala> new SparkContext()
org.apache.spark.SparkException: Only one SparkContext should be running in this JVM (see SPARK-2243).The currently running SparkContext was created at:
org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:939)
...
org.apache.spark.SparkContext$.$anonfun$assertNoOtherContextIsRunning$2(SparkContext.scala:2435)
at scala.Option.foreach(Option.scala:274)
at org.apache.spark.SparkContext$.assertNoOtherContextIsRunning(SparkContext.scala:2432)
at org.apache.spark.SparkContext$.markPartiallyConstructed(SparkContext.scala:2509)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:80)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:112)
... 49 elided
```
Closes#23311 from HyukjinKwon/SPARK-26362.
Authored-by: Hyukjin Kwon <gurwls223@apache.org>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
When using ordinals to access linked list, the time cost is O(n).
## How was this patch tested?
Existing tests.
Closes#23280 from CarolinePeng/update_Two.
Authored-by: CarolinPeng <00244106@zte.intra>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
When using a higher-order function with the same variable name as the existing columns in `Filter` or something which uses `Analyzer.resolveExpressionBottomUp` during the resolution, e.g.,:
```scala
val df = Seq(
(Seq(1, 9, 8, 7), 1, 2),
(Seq(5, 9, 7), 2, 2),
(Seq.empty, 3, 2),
(null, 4, 2)
).toDF("i", "x", "d")
checkAnswer(df.filter("exists(i, x -> x % d == 0)"),
Seq(Row(Seq(1, 9, 8, 7), 1, 2)))
checkAnswer(df.select("x").filter("exists(i, x -> x % d == 0)"),
Seq(Row(1)))
```
the following exception happens:
```
java.lang.ClassCastException: org.apache.spark.sql.catalyst.expressions.BoundReference cannot be cast to org.apache.spark.sql.catalyst.expressions.NamedExpression
at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:237)
at scala.collection.mutable.ResizableArray.foreach(ResizableArray.scala:62)
at scala.collection.mutable.ResizableArray.foreach$(ResizableArray.scala:55)
at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:49)
at scala.collection.TraversableLike.map(TraversableLike.scala:237)
at scala.collection.TraversableLike.map$(TraversableLike.scala:230)
at scala.collection.AbstractTraversable.map(Traversable.scala:108)
at org.apache.spark.sql.catalyst.expressions.HigherOrderFunction.$anonfun$functionsForEval$1(higherOrderFunctions.scala:147)
at scala.collection.TraversableLike.$anonfun$map$1(TraversableLike.scala:237)
at scala.collection.immutable.List.foreach(List.scala:392)
at scala.collection.TraversableLike.map(TraversableLike.scala:237)
at scala.collection.TraversableLike.map$(TraversableLike.scala:230)
at scala.collection.immutable.List.map(List.scala:298)
at org.apache.spark.sql.catalyst.expressions.HigherOrderFunction.functionsForEval(higherOrderFunctions.scala:145)
at org.apache.spark.sql.catalyst.expressions.HigherOrderFunction.functionsForEval$(higherOrderFunctions.scala:145)
at org.apache.spark.sql.catalyst.expressions.ArrayExists.functionsForEval$lzycompute(higherOrderFunctions.scala:369)
at org.apache.spark.sql.catalyst.expressions.ArrayExists.functionsForEval(higherOrderFunctions.scala:369)
at org.apache.spark.sql.catalyst.expressions.SimpleHigherOrderFunction.functionForEval(higherOrderFunctions.scala:176)
at org.apache.spark.sql.catalyst.expressions.SimpleHigherOrderFunction.functionForEval$(higherOrderFunctions.scala:176)
at org.apache.spark.sql.catalyst.expressions.ArrayExists.functionForEval(higherOrderFunctions.scala:369)
at org.apache.spark.sql.catalyst.expressions.ArrayExists.nullSafeEval(higherOrderFunctions.scala:387)
at org.apache.spark.sql.catalyst.expressions.SimpleHigherOrderFunction.eval(higherOrderFunctions.scala:190)
at org.apache.spark.sql.catalyst.expressions.SimpleHigherOrderFunction.eval$(higherOrderFunctions.scala:185)
at org.apache.spark.sql.catalyst.expressions.ArrayExists.eval(higherOrderFunctions.scala:369)
at org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificPredicate.eval(Unknown Source)
at org.apache.spark.sql.execution.FilterExec.$anonfun$doExecute$3(basicPhysicalOperators.scala:216)
at org.apache.spark.sql.execution.FilterExec.$anonfun$doExecute$3$adapted(basicPhysicalOperators.scala:215)
...
```
because the `UnresolvedAttribute`s in `LambdaFunction` are unexpectedly resolved by the rule.
This pr modified to use a placeholder `UnresolvedNamedLambdaVariable` to prevent unexpected resolution.
## How was this patch tested?
Added a test and modified some tests.
Closes#23320 from ueshin/issues/SPARK-26370/hof_resolution.
Authored-by: Takuya UESHIN <ueshin@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
I was looking at the code and it was a bit difficult to see the life cycle of InMemoryFileIndex passed into getOrInferFileFormatSchema, because once it is passed in, and another time it was created in getOrInferFileFormatSchema. It'd be easier to understand the life cycle if we move the creation of it out.
## How was this patch tested?
This is a simple code move and should be covered by existing tests.
Closes#23317 from rxin/SPARK-26368.
Authored-by: Reynold Xin <rxin@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
Regarding the performance issue of SPARK-26155, it reports the issue on TPC-DS. I think it is better to add a benchmark for `LongToUnsafeRowMap` which is the root cause of performance regression.
It can be easier to show performance difference between different metric implementations in `LongToUnsafeRowMap`.
## How was this patch tested?
Manually run added benchmark.
Closes#23284 from viirya/SPARK-26337.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Added query status updates to ContinuousExecution.
## How was this patch tested?
Existing unit tests + added ContinuousQueryStatusAndProgressSuite.
Closes#23095 from gaborgsomogyi/SPARK-23886.
Authored-by: Gabor Somogyi <gabor.g.somogyi@gmail.com>
Signed-off-by: Marcelo Vanzin <vanzin@cloudera.com>
## What changes were proposed in this pull request?
As discussed in https://github.com/apache/spark/pull/23208/files#r239684490 , we should put `newScanBuilder` in read related mix-in traits like `SupportsBatchRead`, to support write-only table.
In the `Append` operator, we should skip schema validation if not necessary. In the future we would introduce a capability API, so that data source can tell Spark that it doesn't want to do validation.
## How was this patch tested?
existing tests.
Closes#23266 from cloud-fan/ds-read.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
There are some comments issues left when `ConvertToLocalRelation` rule was added (see #22205/[SPARK-25212](https://issues.apache.org/jira/browse/SPARK-25212)). This PR fixes those comments issues.
## How was this patch tested?
N/A
Closes#23273 from seancxmao/ConvertToLocalRelation-doc.
Authored-by: seancxmao <seancxmao@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
cleanup some tests to make sure expression is resolved during test.
## How was this patch tested?
test-only PR
Closes#23297 from cloud-fan/test.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Some documents of `Distribution/Partitioning` are stale and misleading, this PR fixes them:
1. `Distribution` never have intra-partition requirement
2. `OrderedDistribution` does not require tuples that share the same value being colocated in the same partition.
3. `RangePartitioning` can provide a weaker guarantee for a prefix of its `ordering` expressions.
## How was this patch tested?
comment-only PR.
Closes#23249 from cloud-fan/doc.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Follow up pr for #23207, include following changes:
- Rename `SQLShuffleMetricsReporter` to `SQLShuffleReadMetricsReporter` to make it match with write side naming.
- Display text changes for read side for naming consistent.
- Rename function in `ShuffleWriteProcessor`.
- Delete `private[spark]` in execution package.
## How was this patch tested?
Existing tests.
Closes#23286 from xuanyuanking/SPARK-26193-follow.
Authored-by: Yuanjian Li <xyliyuanjian@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
If `checkForContinuous` is called ( `checkForStreaming` is called in `checkForContinuous` ), the `checkForStreaming` mothod will be called twice in `createQuery` , this is not necessary, and the `checkForStreaming` method has a lot of statements, so it's better to remove one of them.
## How was this patch tested?
Existing unit tests in `StreamingQueryManagerSuite` and `ContinuousAggregationSuite`
Closes#23251 from 10110346/isUnsupportedOperationCheckEnabled.
Authored-by: liuxian <liu.xian3@zte.com.cn>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
In the PR, I propose to return partial results from JSON datasource and JSON functions in the PERMISSIVE mode if some of JSON fields are parsed and converted to desired types successfully. The changes are made only for `StructType`. Whole bad JSON records are placed into the corrupt column specified by the `columnNameOfCorruptRecord` option or SQL config.
Partial results are not returned for malformed JSON input.
## How was this patch tested?
Added new UT which checks converting JSON strings with one invalid and one valid field at the end of the string.
Closes#23253 from MaxGekk/json-bad-record.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This is a regression introduced by https://github.com/apache/spark/pull/22104 at Spark 2.4.0.
When we have Python UDF in subquery, we will hit an exception
```
Caused by: java.lang.ClassCastException: org.apache.spark.sql.catalyst.expressions.AttributeReference cannot be cast to org.apache.spark.sql.catalyst.expressions.PythonUDF
at scala.collection.immutable.Stream.map(Stream.scala:414)
at org.apache.spark.sql.execution.python.EvalPythonExec.$anonfun$doExecute$2(EvalPythonExec.scala:98)
at org.apache.spark.rdd.RDD.$anonfun$mapPartitions$2(RDD.scala:815)
...
```
https://github.com/apache/spark/pull/22104 turned `ExtractPythonUDFs` from a physical rule to optimizer rule. However, there is a difference between a physical rule and optimizer rule. A physical rule always runs once, an optimizer rule may be applied twice on a query tree even the rule is located in a batch that only runs once.
For a subquery, the `OptimizeSubqueries` rule will execute the entire optimizer on the query plan inside subquery. Later on subquery will be turned to joins, and the optimizer rules will be applied to it again.
Unfortunately, the `ExtractPythonUDFs` rule is not idempotent. When it's applied twice on a query plan inside subquery, it will produce a malformed plan. It extracts Python UDF from Python exec plans.
This PR proposes 2 changes to be double safe:
1. `ExtractPythonUDFs` should skip python exec plans, to make the rule idempotent
2. `ExtractPythonUDFs` should skip subquery
## How was this patch tested?
a new test.
Closes#23248 from cloud-fan/python.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
`RDDConversions` would get disproportionately slower as the number of columns in the query increased,
for the type of `converters` before is `scala.collection.immutable.::` which is a subtype of list.
This PR removing `RDDConversions` and using `RowEncoder` to convert the Row to InternalRow.
The test of `PrunedScanSuite` for 2000 columns and 20k rows takes 409 seconds before this PR, and 361 seconds after.
## How was this patch tested?
Test case of `PrunedScanSuite`
Closes#23262 from eatoncys/toarray.
Authored-by: 10129659 <chen.yanshan@zte.com.cn>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
… incorrect.
## What changes were proposed in this pull request?
In the reported heartbeat information, the unit of the memory data is bytes, which is converted by the formatBytes() function in the utils.js file before being displayed in the interface. The cardinality of the unit conversion in the formatBytes function is 1000, which should be 1024.
Change the cardinality of the unit conversion in the formatBytes function to 1024.
## How was this patch tested?
manual tests
Please review http://spark.apache.org/contributing.html before opening a pull request.
Closes#22683 from httfighter/SPARK-25696.
Lead-authored-by: 韩田田00222924 <han.tiantian@zte.com.cn>
Co-authored-by: han.tiantian@zte.com.cn <han.tiantian@zte.com.cn>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Add appendReadColumns Unit Test for HiveShimSuite.
## How was this patch tested?
```
$ build/sbt
> project hive
> testOnly *HiveShimSuite
```
Closes#23268 from sadhen/refactor/hiveshim.
Authored-by: Darcy Shen <sadhen@zoho.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This is a Spark 2.3 regression introduced in https://github.com/apache/spark/pull/20521. We should add the partition info for InsertIntoHiveTable in CreateHiveTableAsSelectCommand. Otherwise, we will hit the following error by running the newly added test case:
```
[info] - CTAS: INSERT a partitioned table using Hive serde *** FAILED *** (829 milliseconds)
[info] org.apache.spark.SparkException: Requested partitioning does not match the tab1 table:
[info] Requested partitions:
[info] Table partitions: part
[info] at org.apache.spark.sql.hive.execution.InsertIntoHiveTable.processInsert(InsertIntoHiveTable.scala:179)
[info] at org.apache.spark.sql.hive.execution.InsertIntoHiveTable.run(InsertIntoHiveTable.scala:107)
```
## How was this patch tested?
Added a test case.
Closes#23255 from gatorsmile/fixCTAS.
Authored-by: gatorsmile <gatorsmile@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
1. Implement `SQLShuffleWriteMetricsReporter` on the SQL side as the customized `ShuffleWriteMetricsReporter`.
2. Add shuffle write metrics to `ShuffleExchangeExec`, and use these metrics to create corresponding `SQLShuffleWriteMetricsReporter` in shuffle dependency.
3. Rework on `ShuffleMapTask` to add new class named `ShuffleWriteProcessor` which control shuffle write process, we use sql shuffle write metrics by customizing a ShuffleWriteProcessor on SQL side.
## How was this patch tested?
Add UT in SQLMetricsSuite.
Manually test locally, update screen shot to document attached in JIRA.
Closes#23207 from xuanyuanking/SPARK-26193.
Authored-by: Yuanjian Li <xyliyuanjian@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
A followup of https://github.com/apache/spark/pull/23043
There are 4 places we need to deal with NaN and -0.0:
1. comparison expressions. `-0.0` and `0.0` should be treated as same. Different NaNs should be treated as same.
2. Join keys. `-0.0` and `0.0` should be treated as same. Different NaNs should be treated as same.
3. grouping keys. `-0.0` and `0.0` should be assigned to the same group. Different NaNs should be assigned to the same group.
4. window partition keys. `-0.0` and `0.0` should be treated as same. Different NaNs should be treated as same.
The case 1 is OK. Our comparison already handles NaN and -0.0, and for struct/array/map, we will recursively compare the fields/elements.
Case 2, 3 and 4 are problematic, as they compare `UnsafeRow` binary directly, and different NaNs have different binary representation, and the same thing happens for -0.0 and 0.0.
To fix it, a simple solution is: normalize float/double when building unsafe data (`UnsafeRow`, `UnsafeArrayData`, `UnsafeMapData`). Then we don't need to worry about it anymore.
Following this direction, this PR moves the handling of NaN and -0.0 from `Platform` to `UnsafeWriter`, so that places like `UnsafeRow.setFloat` will not handle them, which reduces the perf overhead. It's also easier to add comments explaining why we do it in `UnsafeWriter`.
## How was this patch tested?
existing tests
Closes#23239 from cloud-fan/minor.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
Parquet files appear to have nullability info when being written, not being read.
## How was this patch tested?
Some test code: (running spark 2.3, but the relevant code in DataSource looks identical on master)
case class NullTest(bo: Boolean, opbol: Option[Boolean])
val testDf = spark.createDataFrame(Seq(NullTest(true, Some(false))))
defined class NullTest
testDf: org.apache.spark.sql.DataFrame = [bo: boolean, opbol: boolean]
testDf.write.parquet("s3://asana-stats/tmp_dima/parquet_check_schema")
spark.read.parquet("s3://asana-stats/tmp_dima/parquet_check_schema/part-00000-b1bf4a19-d9fe-4ece-a2b4-9bbceb490857-c000.snappy.parquet4").printSchema()
root
|-- bo: boolean (nullable = true)
|-- opbol: boolean (nullable = true)
Meanwhile, the parquet file formed does have nullable info:
[]batchprod-report000:/tmp/dimakamalov-batch$ aws s3 ls s3://asana-stats/tmp_dima/parquet_check_schema/
2018-10-17 21:03:52 0 _SUCCESS
2018-10-17 21:03:50 504 part-00000-b1bf4a19-d9fe-4ece-a2b4-9bbceb490857-c000.snappy.parquet
[]batchprod-report000:/tmp/dimakamalov-batch$ aws s3 cp s3://asana-stats/tmp_dima/parquet_check_schema/part-00000-b1bf4a19-d9fe-4ece-a2b4-9bbceb490857-c000.snappy.parquet .
download: s3://asana-stats/tmp_dima/parquet_check_schema/part-00000-b1bf4a19-d9fe-4ece-a2b4-9bbceb490857-c000.snappy.parquet to ./part-00000-b1bf4a19-d9fe-4ece-a2b4-9bbceb490857-c000.snappy.parquet
[]batchprod-report000:/tmp/dimakamalov-batch$ java -jar parquet-tools-1.8.2.jar schema part-00000-b1bf4a19-d9fe-4ece-a2b4-9bbceb490857-c000.snappy.parquet
message spark_schema {
required boolean bo;
optional boolean opbol;
}
Closes#22759 from dima-asana/dima-asana-nullable-parquet-doc.
Authored-by: dima-asana <42555784+dima-asana@users.noreply.github.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This is a follow-up of #23031 to rename the config name to `spark.sql.legacy.setCommandRejectsSparkCoreConfs`.
## How was this patch tested?
Existing tests.
Closes#23245 from ueshin/issues/SPARK-26060/rename_config.
Authored-by: Takuya UESHIN <ueshin@databricks.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
Currently if user provides data schema, partition column values are converted as per it. But if the conversion failed, e.g. converting string to int, the column value is null.
This PR proposes to throw exception in such case, instead of converting into null value silently:
1. These null partition column values doesn't make sense to users in most cases. It is better to show the conversion failure, and then users can adjust the schema or ETL jobs to fix it.
2. There are always exceptions on such conversion failure for non-partition data columns. Partition columns should have the same behavior.
We can reproduce the case above as following:
```
/tmp/testDir
├── p=bar
└── p=foo
```
If we run:
```
val schema = StructType(Seq(StructField("p", IntegerType, false)))
spark.read.schema(schema).csv("/tmp/testDir/").show()
```
We will get:
```
+----+
| p|
+----+
|null|
|null|
+----+
```
## How was this patch tested?
Unit test
Closes#23215 from gengliangwang/SPARK-26263.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
`enablePerfMetrics `was originally designed in `BytesToBytesMap `to control `getNumHashCollisions getTimeSpentResizingNs getAverageProbesPerLookup`.
However, as the Spark version gradual progress. this parameter is only used for `getAverageProbesPerLookup ` and always given to true when using `BytesToBytesMap`.
it is also dangerous to determine whether `getAverageProbesPerLookup `opens and throws an `IllegalStateException `exception.
So this pr will be remove `enablePerfMetrics `parameter from `BytesToBytesMap`. thanks.
## How was this patch tested?
the existed test cases.
Closes#23244 from heary-cao/enablePerfMetrics.
Authored-by: caoxuewen <cao.xuewen@zte.com.cn>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
When executing `toPandas` with Arrow enabled, partitions that arrive in the JVM out-of-order must be buffered before they can be send to Python. This causes an excess of memory to be used in the driver JVM and increases the time it takes to complete because data must sit in the JVM waiting for preceding partitions to come in.
This change sends un-ordered partitions to Python as soon as they arrive in the JVM, followed by a list of partition indices so that Python can assemble the data in the correct order. This way, data is not buffered at the JVM and there is no waiting on particular partitions so performance will be increased.
Followup to #21546
## How was this patch tested?
Added new test with a large number of batches per partition, and test that forces a small delay in the first partition. These test that partitions are collected out-of-order and then are are put in the correct order in Python.
## Performance Tests - toPandas
Tests run on a 4 node standalone cluster with 32 cores total, 14.04.1-Ubuntu and OpenJDK 8
measured wall clock time to execute `toPandas()` and took the average best time of 5 runs/5 loops each.
Test code
```python
df = spark.range(1 << 25, numPartitions=32).toDF("id").withColumn("x1", rand()).withColumn("x2", rand()).withColumn("x3", rand()).withColumn("x4", rand())
for i in range(5):
start = time.time()
_ = df.toPandas()
elapsed = time.time() - start
```
Spark config
```
spark.driver.memory 5g
spark.executor.memory 5g
spark.driver.maxResultSize 2g
spark.sql.execution.arrow.enabled true
```
Current Master w/ Arrow stream | This PR
---------------------|------------
5.16207 | 4.342533
5.133671 | 4.399408
5.147513 | 4.468471
5.105243 | 4.36524
5.018685 | 4.373791
Avg Master | Avg This PR
------------------|--------------
5.1134364 | 4.3898886
Speedup of **1.164821449**
Closes#22275 from BryanCutler/arrow-toPandas-oo-batches-SPARK-25274.
Authored-by: Bryan Cutler <cutlerb@gmail.com>
Signed-off-by: Bryan Cutler <cutlerb@gmail.com>
## What changes were proposed in this pull request?
this code come from PR: https://github.com/apache/spark/pull/11190,
but this code has never been used, only since PR: https://github.com/apache/spark/pull/14548,
Let's continue fix it. thanks.
## How was this patch tested?
N / A
Closes#23227 from heary-cao/unuseSparkPlan.
Authored-by: caoxuewen <cao.xuewen@zte.com.cn>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
The PR starts from the [comment](https://github.com/apache/spark/pull/23124#discussion_r236112390) in the main one and it aims at:
- simplifying the code for `MapConcat`;
- be more precise in checking the limit size.
## How was this patch tested?
existing tests
Closes#23217 from mgaido91/SPARK-25829_followup.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
When we encode a Decimal from external source we don't check for overflow. That method is useful not only in order to enforce that we can represent the correct value in the specified range, but it also changes the underlying data to the right precision/scale. Since in our code generation we assume that a decimal has exactly the same precision and scale of its data type, missing to enforce it can lead to corrupted output/results when there are subsequent transformations.
## How was this patch tested?
added UT
Closes#23210 from mgaido91/SPARK-26233.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
In the PR, I propose to use **java.time API** for parsing timestamps and dates from CSV content with microseconds precision. The SQL config `spark.sql.legacy.timeParser.enabled` allow to switch back to previous behaviour with using `java.text.SimpleDateFormat`/`FastDateFormat` for parsing/generating timestamps/dates.
## How was this patch tested?
It was tested by `UnivocityParserSuite`, `CsvExpressionsSuite`, `CsvFunctionsSuite` and `CsvSuite`.
Closes#23150 from MaxGekk/time-parser.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
It will throw:
```
requirement failed: When reading JDBC data sources, users need to specify all or none for the following options: 'partitionColumn', 'lowerBound', 'upperBound', and 'numPartitions'
```
and
```
User-defined partition column subq.c1 not found in the JDBC relation ...
```
This PR fix this error example.
## How was this patch tested?
manual tests
Closes#23170 from wangyum/SPARK-24499.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In the DDLSuit, there are four test cases have the same codes , writing a function can combine the same code.
## How was this patch tested?
existing tests.
Closes#23194 from CarolinePeng/Update_temp.
Authored-by: 彭灿00244106 <00244106@zte.intra>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
## What changes were proposed in this pull request?
In SPARK-23711, we have implemented the expression fallback logic to an interpreted mode. So, this pr fixed code to support the same fallback mode in `SafeProjection` based on `CodeGeneratorWithInterpretedFallback`.
## How was this patch tested?
Add tests in `CodeGeneratorWithInterpretedFallbackSuite` and `UnsafeRowConverterSuite`.
Closes#22468 from maropu/SPARK-25374-3.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Currently in the Analyzer, we have two methods 1) Resolve 2)ResolveExpressions that are called at different code paths to resolve attributes, column ordinal and extract value expressions. ~~In this PR, we combine the two into one method to make sure, there is only one method that is tasked with resolving the attributes.~~
Update the description of the methods and use better names to make it easier to know when to make use of one method vs the other.
## How was this patch tested?
Existing tests.
Closes#22899 from dilipbiswal/SPARK-25573-final.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
This pr is to return an empty config set when regenerating the golden files in `SQLQueryTestSuite`.
This is the follow-up of #22512.
## How was this patch tested?
N/A
Closes#23212 from maropu/SPARK-25498-FOLLOWUP.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Since `AggregationIterator` uses `MutableProjection` for `UnsafeRow`, `InterpretedMutableProjection` needs to handle `UnsafeRow` as buffer internally for fixed-length types only.
## How was this patch tested?
Run 'SQLQueryTestSuite' with the interpreted mode.
Closes#22512 from maropu/InterpreterTest.
Authored-by: Takeshi Yamamuro <yamamuro@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
For now the `hasMinMaxStats` will return the same as `hasCountStats`, which is obviously not as expected.
## How was this patch tested?
Existing tests.
Closes#23152 from adrian-wang/minmaxstats.
Authored-by: Daoyuan Wang <me@daoyuan.wang>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Partition column name is required to be unique under the same directory. The following paths are invalid partitioned directory:
```
hdfs://host:9000/path/a=1
hdfs://host:9000/path/b=2
```
If case sensitive, the following paths should be invalid too:
```
hdfs://host:9000/path/a=1
hdfs://host:9000/path/A=2
```
Since column 'a' and 'A' are different, and it is wrong to use either one as the column name in partition schema.
Also, there is a `TODO` comment in the code. Currently the Spark doesn't validate such case when `CASE_SENSITIVE` enabled.
This PR is to resolve the problem.
## How was this patch tested?
Add unit test
Closes#23186 from gengliangwang/SPARK-26230.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to change behaviour of `UnivocityParser` and `FailureSafeParser`, and return all fields that were parsed and converted to expected types successfully instead of just returning a row with all `null`s for a bad input in the `PERMISSIVE` mode. For example, for CSV line `0,2013-111-11 12:13:14` and DDL schema `a int, b timestamp`, new result is `Row(0, null)`.
## How was this patch tested?
It was checked by existing tests from `CsvSuite` and `CsvFunctionsSuite`.
Closes#23120 from MaxGekk/failuresafe-partial-result.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
When build hash Map with one row of data and run out of memory, we should throw a SparkOutOfMemoryError exception, which is more accurate than SparkException. this PR fix it.
## How was this patch tested?
N / A
Closes#23190 from heary-cao/throwUnsafeHashedRelation.
Authored-by: caoxuewen <cao.xuewen@zte.com.cn>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
How to reproduce this issue:
```scala
scala> val meta = new org.apache.spark.sql.types.MetadataBuilder().putNull("key").build().json
java.lang.NullPointerException
at org.apache.spark.sql.types.Metadata$.org$apache$spark$sql$types$Metadata$$toJsonValue(Metadata.scala:196)
at org.apache.spark.sql.types.Metadata$$anonfun$1.apply(Metadata.scala:180)
```
This pr fix `NullPointerException` when `Metadata` serialize `null` values.
## How was this patch tested?
unit tests
Closes#23164 from wangyum/SPARK-26198.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Add headers to empty csv files when header=true, because otherwise these files are invalid when reading.
## How was this patch tested?
Added test for roundtrip of empty dataframe to csv file with headers and back in CSVSuite
Please review http://spark.apache.org/contributing.html before opening a pull request.
Closes#23173 from koertkuipers/feat-empty-csv-with-header.
Authored-by: Koert Kuipers <koert@tresata.com>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
UnsupportedOperationException messages are not the same with method name.This PR correct these messages.
## How was this patch tested?
NA
Closes#23154 from lcqzte10192193/wid-lcq-1127.
Authored-by: lichaoqun <li.chaoqun@zte.com.cn>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
It's a bad idea to use case class as public API, as it has a very wide surface. For example, the `copy` method, its fields, the companion object, etc.
For a particular case, `UserDefinedFunction`. It has a private constructor, and I believe we only want users to access a few methods:`apply`, `nullable`, `asNonNullable`, etc.
However, all its fields, and `copy` method, and the companion object are public unexpectedly. As a result, we made many tricks to work around the binary compatibility issues.
This PR proposes to only make interfaces public, and hide implementations behind with a private class. Now `UserDefinedFunction` is a pure trait, and the concrete implementation is `SparkUserDefinedFunction`, which is private.
Changing class to interface is not binary compatible(but source compatible), so 3.0 is a good chance to do it.
This is the first PR to go with this direction. If it's accepted, I'll create a umbrella JIRA and fix all the public case classes.
## How was this patch tested?
existing tests.
Closes#23178 from cloud-fan/udf.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose filtering out all empty files inside of `FileSourceScanExec` and exclude them from file splits. It should reduce overhead of opening and reading files without any data, and as consequence datasources will not produce empty partitions for such files.
## How was this patch tested?
Added a test which creates an empty and non-empty files. If empty files are ignored in load, Text datasource in the `wholetext` mode must create only one partition for non-empty file.
Closes#23130 from MaxGekk/ignore-empty-files.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This is a follow pr of #23176.
`In` and `InSet` are semantically equal, so the tests for `In` should pass with `InSet`, and vice versa.
This combines those test cases.
## How was this patch tested?
The combined tests and existing tests.
Closes#23187 from ueshin/issues/SPARK-26211/in_inset_tests.
Authored-by: Takuya UESHIN <ueshin@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This is a small change for better debugging: to pass query uuid in IncrementalExecution, when we look at the QueryExecution in isolation to trace back the query.
## How was this patch tested?
N/A - just add some field for better debugging.
Closes#23192 from rxin/SPARK-26241.
Authored-by: Reynold Xin <rxin@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
In an earlier PR, we missed measuring the optimization phase time for streaming queries. This patch adds it.
## How was this patch tested?
Given this is a debugging feature, and it is very convoluted to add tests to verify the phase is set properly, I am not introducing a streaming specific test.
Closes#23193 from rxin/SPARK-26226-1.
Authored-by: Reynold Xin <rxin@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
Correct some document description errors.
## How was this patch tested?
N/A
Closes#23162 from 10110346/docerror.
Authored-by: liuxian <liu.xian3@zte.com.cn>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Currently, the common `withTempDir` function is used in Spark SQL test cases. To handle `val dir = Utils. createTempDir()` and `Utils. deleteRecursively (dir)`. Unfortunately, the `withTempDir` function cannot be used in the Spark Core test case. This PR Sharing `withTempDir` function in Spark Sql and SparkCore to clean up SparkCore test cases. thanks.
## How was this patch tested?
N / A
Closes#23151 from heary-cao/withCreateTempDir.
Authored-by: caoxuewen <cao.xuewen@zte.com.cn>
Signed-off-by: Hyukjin Kwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This patch changes the query plan tracker added earlier to report phase timeline, rather than just a duration for each phase. This way, we can easily find time that's unaccounted for.
## How was this patch tested?
Updated test cases to reflect that.
Closes#23183 from rxin/SPARK-26226.
Authored-by: Reynold Xin <rxin@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
This is the first step of the data source v2 API refactor [proposal](https://docs.google.com/document/d/1uUmKCpWLdh9vHxP7AWJ9EgbwB_U6T3EJYNjhISGmiQg/edit?usp=sharing)
It adds the new API for batch read, without removing the old APIs, as they are still needed for streaming sources.
More concretely, it adds
1. `TableProvider`, works like an anonymous catalog
2. `Table`, represents a structured data set.
3. `ScanBuilder` and `Scan`, a logical represents of data source scan
4. `Batch`, a physical representation of data source batch scan.
## How was this patch tested?
existing tests
Closes#23086 from cloud-fan/refactor-batch.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
This PR is to fix a regression introduced in: https://github.com/apache/spark/pull/21004/files#r236998030
If user specifies schema, Spark don't need to infer data type for of partition columns, otherwise the data type might not match with the one user provided.
E.g. for partition directory `p=4d`, after data type inference the column value will be `4.0`.
See https://issues.apache.org/jira/browse/SPARK-26188 for more details.
Note that user specified schema **might not cover all the data columns**:
```
val schema = new StructType()
.add("id", StringType)
.add("ex", ArrayType(StringType))
val df = spark.read
.schema(schema)
.format("parquet")
.load(src.toString)
assert(df.schema.toList === List(
StructField("ex", ArrayType(StringType)),
StructField("part", IntegerType), // inferred partitionColumn dataType
StructField("id", StringType))) // used user provided partitionColumn dataType
```
For the missing columns in user specified schema, Spark still need to infer their data types if `partitionColumnTypeInferenceEnabled` is enabled.
To implement the partially inference, refactor `PartitioningUtils.parsePartitions` and pass the user specified schema as parameter to cast partition values.
## How was this patch tested?
Add unit test.
Closes#23165 from gengliangwang/fixFileIndex.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Currently the `SET` command works without any warnings even if the specified key is for `SparkConf` entries and it has no effect because the command does not update `SparkConf`, but the behavior might confuse users. We should track `SparkConf` entries and make the command reject for such entries.
## How was this patch tested?
Added a test and existing tests.
Closes#23031 from ueshin/issues/SPARK-26060/set_command.
Authored-by: Takuya UESHIN <ueshin@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose using of the locale option to parse decimals from CSV input. After the changes, `UnivocityParser` converts input string to `BigDecimal` and to Spark's Decimal by using `java.text.DecimalFormat`.
## How was this patch tested?
Added a test for the `en-US`, `ko-KR`, `ru-RU`, `de-DE` locales.
Closes#22979 from MaxGekk/decimal-parsing-locale.
Lead-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Follow up for https://github.com/apache/spark/pull/23128, move sql read metrics relatives to `SQLShuffleMetricsReporter`, in order to put sql shuffle read metrics relatives closer and avoid possible problem about forgetting update SQLShuffleMetricsReporter while new metrics added by others.
## How was this patch tested?
Existing tests.
Closes#23175 from xuanyuanking/SPARK-26142-follow.
Authored-by: Yuanjian Li <xyliyuanjian@gmail.com>
Signed-off-by: Reynold Xin <rxin@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to postpone creation of `OutputStream`/`Univocity`/`JacksonGenerator` till the first row should be written. This prevents creation of empty files for empty partitions. So, no need to open and to read such files back while loading data from the location.
## How was this patch tested?
Added tests for Text, JSON and CSV datasource where empty dataset is written but should not produce any files.
Closes#23052 from MaxGekk/text-empty-files.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Currently `InSet` doesn't work properly for binary type, or struct and array type with null value in the set.
Because, as for binary type, the `HashSet` doesn't work properly for `Array[Byte]`, and as for struct and array type with null value in the set, the `ordering` will throw a `NPE`.
## How was this patch tested?
Added a few tests.
Closes#23176 from ueshin/issues/SPARK-26211/inset.
Authored-by: Takuya UESHIN <ueshin@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose using of the locale option to parse (and infer) decimals from JSON input. After the changes, `JacksonParser` converts input string to `BigDecimal` and to Spark's Decimal by using `java.text.DecimalFormat`. New behaviour can be switched off via SQL config `spark.sql.legacy.decimalParsing.enabled`.
## How was this patch tested?
Added 2 tests to `JsonExpressionsSuite` for the `en-US`, `ko-KR`, `ru-RU`, `de-DE` locales:
- Inferring decimal type using locale from JSON field values
- Converting JSON field values to specified decimal type using the locales.
Closes#23132 from MaxGekk/json-decimal-parsing-locale.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Currently duplicated map keys are not handled consistently. For example, map look up respects the duplicated key appears first, `Dataset.collect` only keeps the duplicated key appears last, `MapKeys` returns duplicated keys, etc.
This PR proposes to remove duplicated map keys with last wins policy, to follow Java/Scala and Presto. It only applies to built-in functions, as users can create map with duplicated map keys via private APIs anyway.
updated functions: `CreateMap`, `MapFromArrays`, `MapFromEntries`, `StringToMap`, `MapConcat`, `TransformKeys`.
For other places:
1. data source v1 doesn't have this problem, as users need to provide a java/scala map, which can't have duplicated keys.
2. data source v2 may have this problem. I've added a note to `ArrayBasedMapData` to ask the caller to take care of duplicated keys. In the future we should enforce it in the stable data APIs for data source v2.
3. UDF doesn't have this problem, as users need to provide a java/scala map. Same as data source v1.
4. file format. I checked all of them and only parquet does not enforce it. For backward compatibility reasons I change nothing but leave a note saying that the behavior will be undefined if users write map with duplicated keys to parquet files. Maybe we can add a config and fail by default if parquet files have map with duplicated keys. This can be done in followup.
## How was this patch tested?
updated tests and new tests
Closes#23124 from cloud-fan/map.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
https://github.com/apache/spark/pull/22326 made a mistake that, not all python UDFs are unevaluable in join condition. Only python UDFs that refer to attributes from both join side are unevaluable.
This PR fixes this mistake.
## How was this patch tested?
a new test
Closes#23153 from cloud-fan/join.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
a followup of https://github.com/apache/spark/pull/23043 . Add a test to show the minor behavior change introduced by #23043 , and add migration guide.
## How was this patch tested?
a new test
Closes#23141 from cloud-fan/follow.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Implement codegen for `LocalTableScanExec` and `ExistingRDDExec`. Refactor to share code between `LocalTableScanExec`, `ExistingRDDExec`, `InputAdapter` and `RowDataSourceScanExec`.
The difference in `doProduce` between these four was that `ExistingRDDExec` and `RowDataSourceScanExec` triggered adding an `UnsafeProjection`, while `InputAdapter` and `LocalTableScanExec` did not.
In the new trait `InputRDDCodegen` I added a flag `createUnsafeProjection` which the operators set accordingly.
Note: `LocalTableScanExec` explicitly creates its input as `UnsafeRows`, so it was obvious why it doesn't need an `UnsafeProjection`. But if an `InputAdapter` may take input that is `InternalRows` but not `UnsafeRows`, then I think it doesn't need an unsafe projection just because any other operator that is its parent would do that. That assumes that that any parent operator would always result in some `UnsafeProjection` being eventually added, and hence the output of the `WholeStageCodegen` unit would be `UnsafeRows`. If these assumptions hold, I think `createUnsafeProjection` could be set to `(parent == null)`.
Note: Do not codegen `LocalTableScanExec` when it's the only operator. `LocalTableScanExec` has optimized driver-only `executeCollect` and `executeTake` code paths that are used to return `Command` results without starting Spark Jobs. They can no longer be used if the `LocalTableScanExec` gets optimized.
## How was this patch tested?
Covered and used in existing tests.
Closes#23127 from juliuszsompolski/SPARK-26159.
Authored-by: Juliusz Sompolski <julek@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
The purpose of this PR is supplement new test cases for a + 1,a + b and Rand in SetOperationSuite.
It comes from the comment of closed PR:#20541, thanks.
## How was this patch tested?
add new test cases
Closes#23138 from heary-cao/UnionPushTestCases.
Authored-by: caoxuewen <cao.xuewen@zte.com.cn>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Based on https://github.com/apache/spark/pull/22857 and https://github.com/apache/spark/pull/23079, this PR did a few updates
- Limit the data types of NULL to Boolean.
- Limit the input data type of replaceNullWithFalse to Boolean; throw an exception in the testing mode.
- Create a new file for the rule ReplaceNullWithFalseInPredicate
- Update the description of this rule.
## How was this patch tested?
Added a test case
Closes#23139 from gatorsmile/followupSpark-25860.
Authored-by: gatorsmile <gatorsmile@gmail.com>
Signed-off-by: DB Tsai <d_tsai@apple.com>
## What changes were proposed in this pull request?
This is follow-up of #21732. This patch inlines `isOptionType` method.
## How was this patch tested?
Existing tests.
Closes#23143 from viirya/SPARK-24762-followup.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR is to improve the code comments to document some common traits and traps about the expression.
## How was this patch tested?
N/A
Closes#23135 from gatorsmile/addcomments.
Authored-by: gatorsmile <gatorsmile@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Create a new suite DataFrameSetOperationsSuite for the test cases of DataFrame/Dataset's set operations.
Also, add test cases of NULL handling for Array Except and Array Intersect.
## How was this patch tested?
N/A
Closes#23137 from gatorsmile/setOpsTest.
Authored-by: gatorsmile <gatorsmile@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
SparkSQL doesn't support to encode `Option[Product]` as a top-level row now, because in SparkSQL entire top-level row can't be null.
However for use cases like Aggregator, it is reasonable to use `Option[Product]` as buffer and output column types. Due to above limitation, we don't do it for now.
This patch proposes to encode `Option[Product]` at top-level as single struct column. So we can work around the issue that entire top-level row can't be null.
To summarize encoding of `Product` and `Option[Product]`.
For `Product`, 1. at root level, the schema is all fields are flatten it into multiple columns. The `Product ` can't be null, otherwise it throws an exception.
```scala
val df = Seq((1 -> "a"), (2 -> "b")).toDF()
df.printSchema()
root
|-- _1: integer (nullable = false)
|-- _2: string (nullable = true)
```
2. At non-root level, `Product` is a struct type column.
```scala
val df = Seq((1, (1 -> "a")), (2, (2 -> "b")), (3, null)).toDF()
df.printSchema()
root
|-- _1: integer (nullable = false)
|-- _2: struct (nullable = true)
| |-- _1: integer (nullable = false)
| |-- _2: string (nullable = true)
```
For `Option[Product]`, 1. it was not supported at root level. After this change, it is a struct type column.
```scala
val df = Seq(Some(1 -> "a"), Some(2 -> "b"), None).toDF()
df.printSchema
root
|-- value: struct (nullable = true)
| |-- _1: integer (nullable = false)
| |-- _2: string (nullable = true)
```
2. At non-root level, it is also a struct type column.
```scala
val df = Seq((1, Some(1 -> "a")), (2, Some(2 -> "b")), (3, None)).toDF()
df.printSchema
root
|-- _1: integer (nullable = false)
|-- _2: struct (nullable = true)
| |-- _1: integer (nullable = false)
| |-- _2: string (nullable = true)
```
3. For use case like Aggregator, it was not supported too. After this change, we support to use `Option[Product]` as buffer/output column type.
```scala
val df = Seq(
OptionBooleanIntData("bob", Some((true, 1))),
OptionBooleanIntData("bob", Some((false, 2))),
OptionBooleanIntData("bob", None)).toDF()
val group = df
.groupBy("name")
.agg(OptionBooleanIntAggregator("isGood").toColumn.alias("isGood"))
group.printSchema
root
|-- name: string (nullable = true)
|-- isGood: struct (nullable = true)
| |-- _1: boolean (nullable = false)
| |-- _2: integer (nullable = false)
```
The buffer and output type of `OptionBooleanIntAggregator` is both `Option[(Boolean, Int)`.
## How was this patch tested?
Added test.
Closes#21732 from viirya/SPARK-24762.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR is to add back `unionAll`, which is widely used. The name is also consistent with our ANSI SQL. We also have the corresponding `intersectAll` and `exceptAll`, which were introduced in Spark 2.4.
## How was this patch tested?
Added a test case in DataFrameSuite
Closes#23131 from gatorsmile/addBackUnionAll.
Authored-by: gatorsmile <gatorsmile@gmail.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
The DOI foundation recommends [this new resolver](https://www.doi.org/doi_handbook/3_Resolution.html#3.8). Accordingly, this PR re`sed`s all static DOI links ;-)
## How was this patch tested?
It wasn't, since it seems as safe as a "[typo fix](https://spark.apache.org/contributing.html)".
In case any of the files is included from other projects, and should be updated there, please let me know.
Closes#23129 from katrinleinweber/resolve-DOIs-securely.
Authored-by: Katrin Leinweber <9948149+katrinleinweber@users.noreply.github.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
This patch defines an internal Spark interface for reporting shuffle metrics and uses that in shuffle reader. Before this patch, shuffle metrics is tied to a specific implementation (using a thread local temporary data structure and accumulators). After this patch, callers that define their own shuffle RDDs can create a custom metrics implementation.
With this patch, we would be able to create a better metrics for the SQL layer, e.g. reporting shuffle metrics in the SQL UI, for each exchange operator.
Note that I'm separating read side and write side implementations, as they are very different, to simplify code review. Write side change is at https://github.com/apache/spark/pull/23106
## How was this patch tested?
No behavior change expected, as it is a straightforward refactoring. Updated all existing test cases.
Closes#23105 from rxin/SPARK-26140.
Authored-by: Reynold Xin <rxin@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
Fix Decimal `toScalaBigInt` and `toJavaBigInteger` used to only work for decimals not fitting long.
## How was this patch tested?
Added test to DecimalSuite.
Closes#23022 from juliuszsompolski/SPARK-26038.
Authored-by: Juliusz Sompolski <julek@databricks.com>
Signed-off-by: Herman van Hovell <hvanhovell@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose new options for CSV datasource - `lineSep` similar to Text and JSON datasource. The option allows to specify custom line separator of maximum length of 2 characters (because of a restriction in `uniVocity` parser). New option can be used in reading and writing CSV files.
## How was this patch tested?
Added a few tests with custom `lineSep` for enabled/disabled `multiLine` in read as well as tests in write. Also I added roundtrip tests.
Closes#23080 from MaxGekk/csv-line-sep.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
the pr #20014 which introduced `SparkOutOfMemoryError` to avoid killing the entire executor when an `OutOfMemoryError `is thrown.
so apply for memory using `MemoryConsumer. allocatePage `when catch exception, use `SparkOutOfMemoryError `instead of `OutOfMemoryError`
## How was this patch tested?
N / A
Closes#23084 from heary-cao/SparkOutOfMemoryError.
Authored-by: caoxuewen <cao.xuewen@zte.com.cn>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
GROUP BY treats -0.0 and 0.0 as different values which is unlike hive's behavior.
In addition current behavior with codegen is unpredictable (see example in JIRA ticket).
## What changes were proposed in this pull request?
In Platform.putDouble/Float() checking if the value is -0.0, and if so replacing with 0.0.
This is used by UnsafeRow so it won't have -0.0 values.
## How was this patch tested?
Added tests
Closes#23043 from adoron/adoron-spark-26021-replace-minus-zero-with-zero.
Authored-by: Alon Doron <adoron@palantir.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This is an addendum patch for SPARK-26129 that defines the edge case behavior for QueryPlanningTracker.topRulesByTime.
## How was this patch tested?
Added unit tests for each behavior.
Closes#23110 from rxin/SPARK-26129-1.
Authored-by: Reynold Xin <rxin@databricks.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
When I ran spark-shell on JDK11+28(2018-09-25), It failed with the error below.
```
Exception in thread "main" java.lang.ExceptionInInitializerError
at org.apache.hadoop.util.StringUtils.<clinit>(StringUtils.java:80)
at org.apache.hadoop.security.SecurityUtil.getAuthenticationMethod(SecurityUtil.java:611)
at org.apache.hadoop.security.UserGroupInformation.initialize(UserGroupInformation.java:273)
at org.apache.hadoop.security.UserGroupInformation.ensureInitialized(UserGroupInformation.java:261)
at org.apache.hadoop.security.UserGroupInformation.loginUserFromSubject(UserGroupInformation.java:791)
at org.apache.hadoop.security.UserGroupInformation.getLoginUser(UserGroupInformation.java:761)
at org.apache.hadoop.security.UserGroupInformation.getCurrentUser(UserGroupInformation.java:634)
at org.apache.spark.util.Utils$.$anonfun$getCurrentUserName$1(Utils.scala:2427)
at scala.Option.getOrElse(Option.scala:121)
at org.apache.spark.util.Utils$.getCurrentUserName(Utils.scala:2427)
at org.apache.spark.SecurityManager.<init>(SecurityManager.scala:79)
at org.apache.spark.deploy.SparkSubmit.secMgr$lzycompute$1(SparkSubmit.scala:359)
at org.apache.spark.deploy.SparkSubmit.secMgr$1(SparkSubmit.scala:359)
at org.apache.spark.deploy.SparkSubmit.$anonfun$prepareSubmitEnvironment$9(SparkSubmit.scala:367)
at scala.Option.map(Option.scala:146)
at org.apache.spark.deploy.SparkSubmit.prepareSubmitEnvironment(SparkSubmit.scala:367)
at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:143)
at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:86)
at org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:927)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:936)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.lang.StringIndexOutOfBoundsException: begin 0, end 3, length 2
at java.base/java.lang.String.checkBoundsBeginEnd(String.java:3319)
at java.base/java.lang.String.substring(String.java:1874)
at org.apache.hadoop.util.Shell.<clinit>(Shell.java:52)
```
This is a Hadoop issue that fails to parse some java.version. It has been fixed from Hadoop-2.7.4(see [HADOOP-14586](https://issues.apache.org/jira/browse/HADOOP-14586)).
Note, Hadoop-2.7.5 or upper have another problem with Spark ([SPARK-25330](https://issues.apache.org/jira/browse/SPARK-25330)). So upgrading to 2.7.4 would be fine for now.
## How was this patch tested?
Existing tests.
Closes#23101 from tasanuma/SPARK-26134.
Authored-by: Takanobu Asanuma <tasanuma@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
The corrupt column specified via JSON/CSV option *columnNameOfCorruptRecord* must have the `string` type and be `nullable`. This has been already checked in `DataFrameReader`.`csv`/`json` and in `Json`/`CsvFileFormat` but not in `from_json`/`from_csv`. The PR adds such checks inside functions as well.
## How was this patch tested?
Added tests to `Json`/`CsvExpressionSuite` for checking type of the corrupt column. They don't check the `nullable` property because `schema` is forcibly casted to nullable.
Closes#23070 from MaxGekk/verify-corrupt-column-csv-json.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
When doing typed aggregation on a Dataset, for struct key type, the key attribute is named as "key". But for non-struct type, the key attribute is named as "value". This key attribute should also be named as "key" for non-struct type.
## How was this patch tested?
Added test.
Closes#23054 from viirya/SPARK-26085.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
An input without valid JSON tokens on the root level will be treated as a bad record, and handled according to `mode`. Previously such input was converted to `null`. After the changes, the input is converted to a row with `null`s in the `PERMISSIVE` mode according the schema. This allows to remove a code in the `from_json` function which can produce `null` as result rows.
## How was this patch tested?
It was tested by existing test suites. Some of them I have to modify (`JsonSuite` for example) because previously bad input was just silently ignored. For now such input is handled according to specified `mode`.
Closes#22938 from MaxGekk/json-nulls.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose:
- new SQL config `spark.sql.debug.maxToStringFields` to control maximum number fields up to which `truncatedString` cuts its input sequences.
- Moving `truncatedString` out of `core` to `sql/catalyst` because it is used only in the `sql/catalyst` packages for restricting number of fields converted to strings from `TreeNode` and expressions of`StructType`.
## How was this patch tested?
Added a test to `QueryExecutionSuite` to check that `spark.sql.debug.maxToStringFields` impacts to behavior of `truncatedString`.
Closes#23039 from MaxGekk/truncated-string-catalyst.
Lead-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
We currently don't have good visibility into query planning time (analysis vs optimization vs physical planning). This patch adds a simple utility to track the runtime of various rules and various planning phases.
## How was this patch tested?
Added unit tests and end-to-end integration tests.
Closes#23096 from rxin/SPARK-26129.
Authored-by: Reynold Xin <rxin@databricks.com>
Signed-off-by: Reynold Xin <rxin@databricks.com>
## What changes were proposed in this pull request?
This change fixes a particular scenario where default spark SQL can't encode (thrift) types that are generated by twitter scrooge. These types are a trait that extends `scala.ProductX` with a constructor defined only in a companion object, rather than a actual case class. The actual case class used is child class, but that type is almost never referred to in code. The type has no corresponding constructor symbol and causes an exception. For all other purposes, these classes act just like case classes, so it is unfortunate that spark SQL can't serialize them nicely as it can actual case classes. For an full example of a scrooge codegen class, see https://gist.github.com/anonymous/ba13d4b612396ca72725eaa989900314.
This change catches the case where the type has no constructor but does have an `apply` method on the type's companion object. This allows for thrift types to be serialized/deserialized with implicit encoders the same way as normal case classes. This fix had to be done in three places where the constructor is assumed to be an actual constructor:
1) In serializing, determining the schema for the dataframe relies on inspecting its constructor (`ScalaReflection.constructParams`). Here we fall back to using the companion constructor arguments.
2) In deserializing or evaluating, in the java codegen ( `NewInstance.doGenCode`), the type couldn't be constructed with the new keyword. If there is no constructor, we change the constructor call to try the companion constructor.
3) In deserializing or evaluating, without codegen, the constructor is directly invoked (`NewInstance.constructor`). This was fixed with scala reflection to get the actual companion apply method.
The return type of `findConstructor` was changed because the companion apply method constructor can't be represented as a `java.lang.reflect.Constructor`.
There might be situations in which this approach would also fail in a new way, but it does at a minimum work for the specific scrooge example and will not impact cases that were already succeeding prior to this change
Note: this fix does not enable using scrooge thrift enums, additional work for this is necessary. With this patch, it seems like you could patch `com.twitter.scrooge.ThriftEnum` to extend `_root_.scala.Product1[Int]` with `def _1 = value` to get spark's implicit encoders to handle enums, but I've yet to use this method myself.
Note: I previously opened a PR for this issue, but only was able to fix case 1) there: https://github.com/apache/spark/pull/18766
## How was this patch tested?
I've fixed all 3 cases and added two tests that use a case class that is similar to scrooge generated one. The test in ScalaReflectionSuite checks 1), and the additional asserting in ObjectExpressionsSuite checks 2) and 3).
Closes#23062 from drewrobb/SPARK-8288.
Authored-by: Drew Robb <drewrobb@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to pass the CSV option `encoding`/`charset` to `uniVocity` parser to allow parsing CSV files in different encodings when `multiLine` is enabled. The value of the option is passed to the `beginParsing` method of `CSVParser`.
## How was this patch tested?
Added new test to `CSVSuite` for different encodings and enabled/disabled header.
Closes#23091 from MaxGekk/csv-miltiline-encoding.
Authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This PR fixes an exception in `AggregateExpression.references` called on unresolved expressions. It implements the solution proposed in [SPARK-26084](https://issues.apache.org/jira/browse/SPARK-26084), a minor refactoring that removes the unnecessary dependence on `AttributeSet.toSeq`, which requires expression IDs and, therefore, can only execute successfully for resolved expressions.
The refactored implementation is both simpler and faster, eliminating the conversion of a `Set` to a
`Seq` and back to `Set`.
## How was this patch tested?
Added a new test based on the failing case in [SPARK-26084](https://issues.apache.org/jira/browse/SPARK-26084).
hvanhovell
Closes#23075 from ssimeonov/ss_SPARK-26084.
Authored-by: Simeon Simeonov <sim@fastignite.com>
Signed-off-by: Herman van Hovell <hvanhovell@databricks.com>
## What changes were proposed in this pull request?
Extend the `ReplaceNullWithFalse` optimizer rule introduced in SPARK-25860 (https://github.com/apache/spark/pull/22857) to also support optimizing predicates in higher-order functions of `ArrayExists`, `ArrayFilter`, `MapFilter`.
Also rename the rule to `ReplaceNullWithFalseInPredicate` to better reflect its intent.
Example:
```sql
select filter(a, e -> if(e is null, null, true)) as b from (
select array(null, 1, null, 3) as a)
```
The optimized logical plan:
**Before**:
```
== Optimized Logical Plan ==
Project [filter([null,1,null,3], lambdafunction(if (isnull(lambda e#13)) null else true, lambda e#13, false)) AS b#9]
+- OneRowRelation
```
**After**:
```
== Optimized Logical Plan ==
Project [filter([null,1,null,3], lambdafunction(if (isnull(lambda e#13)) false else true, lambda e#13, false)) AS b#9]
+- OneRowRelation
```
## How was this patch tested?
Added new unit test cases to the `ReplaceNullWithFalseInPredicateSuite` (renamed from `ReplaceNullWithFalseSuite`).
Closes#23079 from rednaxelafx/catalyst-master.
Authored-by: Kris Mok <kris.mok@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
The build has a lot of deprecation warnings. Some are new in Scala 2.12 and Java 11. We've fixed some, but I wanted to take a pass at fixing lots of easy miscellaneous ones here.
They're too numerous and small to list here; see the pull request. Some highlights:
- `BeanInfo` is deprecated in 2.12, and BeanInfo classes are pretty ancient in Java. Instead, case classes can explicitly declare getters
- Eta expansion of zero-arg methods; foo() becomes () => foo() in many cases
- Floating-point Range is inexact and deprecated, like 0.0 to 100.0 by 1.0
- finalize() is finally deprecated (just needs to be suppressed)
- StageInfo.attempId was deprecated and easiest to remove here
I'm not now going to touch some chunks of deprecation warnings:
- Parquet deprecations
- Hive deprecations (particularly serde2 classes)
- Deprecations in generated code (mostly Thriftserver CLI)
- ProcessingTime deprecations (we may need to revive this class as internal)
- many MLlib deprecations because they concern methods that may be removed anyway
- a few Kinesis deprecations I couldn't figure out
- Mesos get/setRole, which I don't know well
- Kafka/ZK deprecations (e.g. poll())
- Kinesis
- a few other ones that will probably resolve by deleting a deprecated method
## How was this patch tested?
Existing tests, including manual testing with the 2.11 build and Java 11.
Closes#23065 from srowen/SPARK-26090.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Due to implementation limitation, currently Spark can't compare or do equality check between map types. As a result, map values can't appear in EQUAL or comparison expressions, can't be grouping key, etc.
The more important thing is, map loop up needs to do equality check of the map key, and thus can't support map as map key when looking up values from a map. Thus it's not useful to have map as map key.
This PR proposes to stop users from creating maps using map type as key. The list of expressions that are updated: `CreateMap`, `MapFromArrays`, `MapFromEntries`, `MapConcat`, `TransformKeys`. I manually checked all the places that create `MapType`, and came up with this list.
Note that, maps with map type key still exist, via reading from parquet files, converting from scala/java map, etc. This PR is not to completely forbid map as map key, but to avoid creating it by Spark itself.
Motivation: when I was trying to fix the duplicate key problem, I found it's impossible to do it with map type map key. I think it's reasonable to avoid map type map key for builtin functions.
## How was this patch tested?
updated test
Closes#23045 from cloud-fan/map-key.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
Following [SPARK-26024](https://issues.apache.org/jira/browse/SPARK-26024), I noticed the number of elements in each partition after repartitioning using `df.repartitionByRange` can vary for the same setup:
```scala
// Shuffle numbers from 0 to 1000, and make a DataFrame
val df = Random.shuffle(0.to(1000)).toDF("val")
// Repartition it using 3 partitions
// Sum up number of elements in each partition, and collect it.
// And do it several times
for (i <- 0 to 9) {
var counts = df.repartitionByRange(3, col("val"))
.mapPartitions{part => Iterator(part.size)}
.collect()
println(counts.toList)
}
// -> the number of elements in each partition varies
```
This is expected as for performance reasons this method uses sampling to estimate the ranges (with default size of 100). Hence, the output may not be consistent, since sampling can return different values. But documentation was not mentioning it at all, leading to misunderstanding.
## What changes were proposed in this pull request?
Update the documentation (Spark & PySpark) to mention the impact of `spark.sql.execution.rangeExchange.sampleSizePerPartition` on the resulting partitioned DataFrame.
Closes#23025 from JulienPeloton/SPARK-26024.
Authored-by: Julien <peloton@lal.in2p3.fr>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
The following 5 functions were removed from branch-2.4:
- map_entries
- map_filter
- transform_values
- transform_keys
- map_zip_with
We should update the since version to 3.0.0.
## How was this patch tested?
Existing tests.
Closes#23082 from ueshin/issues/SPARK-26112/since.
Authored-by: Takuya UESHIN <ueshin@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This restores scaladoc artifact generation, which got dropped with the Scala 2.12 update. The change looks large, but is almost all due to needing to make the InterfaceStability annotations top-level classes (i.e. `InterfaceStability.Stable` -> `Stable`), unfortunately. A few inner class references had to be qualified too.
Lots of scaladoc warnings now reappear. We can choose to disable generation by default and enable for releases, later.
## How was this patch tested?
N/A; build runs scaladoc now.
Closes#23069 from srowen/SPARK-26026.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
[Hive 2.3.4 is released on Nov. 7th](https://hive.apache.org/downloads.html#7-november-2018-release-234-available). This PR aims to support that version.
## How was this patch tested?
Pass the Jenkins with the updated version
Closes#23059 from dongjoon-hyun/SPARK-26091.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
Since [Spark 1.6.0](56d7da14ab (diff-6f38a103058a6e233b7ad80718452387R96)), there was a redundant '}' character in CTAS string plan's database argument string; `default}`. This PR aims to fix it.
**BEFORE**
```scala
scala> sc.version
res1: String = 1.6.0
scala> sql("create table t as select 1").explain
== Physical Plan ==
ExecutedCommand CreateTableAsSelect [Database:default}, TableName: t, InsertIntoHiveTable]
+- Project [1 AS _c0#3]
+- OneRowRelation$
```
**AFTER**
```scala
scala> sql("create table t as select 1").explain
== Physical Plan ==
Execute CreateHiveTableAsSelectCommand CreateHiveTableAsSelectCommand [Database:default, TableName: t, InsertIntoHiveTable]
+- *(1) Project [1 AS 1#4]
+- Scan OneRowRelation[]
```
## How was this patch tested?
Manual.
Closes#23064 from dongjoon-hyun/SPARK-FIX.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
Events are dispatched on a separate thread, so need to wait for them to be
actually delivered before checking that the listener got them.
Closes#23050 from vanzin/SPARK-26079.
Authored-by: Marcelo Vanzin <vanzin@cloudera.com>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Use CheckpointFileManager to write the streaming `metadata` file so that the `metadata` file will never be a partial file.
## How was this patch tested?
Jenkins
Closes#23060 from zsxwing/SPARK-26092.
Authored-by: Shixiong Zhu <zsxwing@gmail.com>
Signed-off-by: Shixiong Zhu <zsxwing@gmail.com>
## What changes were proposed in this pull request?
remove invalid comment as we don't use it anymore
More details: https://github.com/apache/spark/pull/22976#discussion_r233764857
## How was this patch tested?
N/A
Closes#23044 from heary-cao/followUpOrdering.
Authored-by: caoxuewen <cao.xuewen@zte.com.cn>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This is a follow-up of #20393.
We should read the conf `"spark.sql.sort.enableRadixSort"` from `SQLConf` instead of `SparkConf`, i.e., use `SQLConf.get.enableRadixSort` instead of `SparkEnv.get.conf.get(SQLConf.RADIX_SORT_ENABLED)`, otherwise the config is never read.
## How was this patch tested?
Existing tests.
Closes#23046 from ueshin/issues/SPARK-23207/conf.
Authored-by: Takuya UESHIN <ueshin@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In SPARK-24865 `AnalysisBarrier` was removed and in order to improve resolution speed, the `analyzed` flag was (re-)introduced in order to process only plans which are not yet analyzed. This should not be the case when performing attribute deduplication as in that case we need to transform also the plans which were already analyzed, otherwise we can miss to rewrite some attributes leading to invalid plans.
## How was this patch tested?
added UT
Please review http://spark.apache.org/contributing.html before opening a pull request.
Closes#23035 from mgaido91/SPARK-26057.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR makes Spark's default Scala version as 2.12, and Scala 2.11 will be the alternative version. This implies that Scala 2.12 will be used by our CI builds including pull request builds.
We'll update the Jenkins to include a new compile-only jobs for Scala 2.11 to ensure the code can be still compiled with Scala 2.11.
## How was this patch tested?
existing tests
Closes#22967 from dbtsai/scala2.12.
Authored-by: DB Tsai <d_tsai@apple.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
Add scala and java lint check rules to ban the usage of `throw new xxxErrors` and fix up all exists instance followed by https://github.com/apache/spark/pull/22989#issuecomment-437939830. See more details in https://github.com/apache/spark/pull/22969.
## How was this patch tested?
Local test with lint-scala and lint-java.
Closes#22989 from xuanyuanking/SPARK-25986.
Authored-by: Yuanjian Li <xyliyuanjian@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
…. Other related changes to get JDK 11 working, to test
## What changes were proposed in this pull request?
- Access `sun.misc.Cleaner` (Java 8) and `jdk.internal.ref.Cleaner` (JDK 9+) by reflection (note: the latter only works if illegal reflective access is allowed)
- Access `sun.misc.Unsafe.invokeCleaner` in Java 9+ instead of `sun.misc.Cleaner` (Java 8)
In order to test anything on JDK 11, I also fixed a few small things, which I include here:
- Fix minor JDK 11 compile issues
- Update scala plugin, Jetty for JDK 11, to facilitate tests too
This doesn't mean JDK 11 tests all pass now, but lots do. Note also that the JDK 9+ solution for the Cleaner has a big caveat.
## How was this patch tested?
Existing tests. Manually tested JDK 11 build and tests, and tests covering this change appear to pass. All Java 8 tests should still pass, but this change alone does not achieve full JDK 11 compatibility.
Closes#22993 from srowen/SPARK-24421.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
As initializing lazy vals shares the same lock, a thread is trying to initialize `executedPlan` when `isRDD` is running, this thread will hang forever.
This PR just materializes `executedPlan` so that accessing it when `toRdd` is running doesn't need to wait for a lock
## How was this patch tested?
Jenkins
Closes#23023 from zsxwing/SPARK-26042.
Authored-by: Shixiong Zhu <zsxwing@gmail.com>
Signed-off-by: Shixiong Zhu <zsxwing@gmail.com>
## What changes were proposed in this pull request?
This is the official first attempt to break huge single `tests.py` file - I did it locally before few times and gave up for some reasons. Now, currently it really makes the unittests super hard to read and difficult to check. To me, it even bothers me to to scroll down the big file. It's one single 7000 lines file!
This is not only readability issue. Since one big test takes most of tests time, the tests don't run in parallel fully - although it will costs to start and stop the context.
We could pick up one example and follow. Given my investigation, the current style looks closer to NumPy structure and looks easier to follow. Please see https://github.com/numpy/numpy/tree/master/numpy.
Basically this PR proposes to break down `pyspark/sql/tests.py` into ...:
```bash
pyspark
...
├── sql
...
│ ├── tests # Includes all tests broken down from 'pyspark/sql/tests.py'
│ │ │ # Each matchs to module in 'pyspark/sql'. Additionally, some logical group can
│ │ │ # be added. For instance, 'test_arrow.py', 'test_datasources.py' ...
│ │ ├── __init__.py
│ │ ├── test_appsubmit.py
│ │ ├── test_arrow.py
│ │ ├── test_catalog.py
│ │ ├── test_column.py
│ │ ├── test_conf.py
│ │ ├── test_context.py
│ │ ├── test_dataframe.py
│ │ ├── test_datasources.py
│ │ ├── test_functions.py
│ │ ├── test_group.py
│ │ ├── test_pandas_udf.py
│ │ ├── test_pandas_udf_grouped_agg.py
│ │ ├── test_pandas_udf_grouped_map.py
│ │ ├── test_pandas_udf_scalar.py
│ │ ├── test_pandas_udf_window.py
│ │ ├── test_readwriter.py
│ │ ├── test_serde.py
│ │ ├── test_session.py
│ │ ├── test_streaming.py
│ │ ├── test_types.py
│ │ ├── test_udf.py
│ │ └── test_utils.py
...
├── testing # Includes testing utils that can be used in unittests.
│ ├── __init__.py
│ └── sqlutils.py
...
```
## How was this patch tested?
Existing tests should cover.
`cd python` and `./run-tests-with-coverage`. Manually checked they are actually being ran.
Each test (not officially) can be ran via:
```
SPARK_TESTING=1 ./bin/pyspark pyspark.sql.tests.test_pandas_udf_scalar
```
Note that if you're using Mac and Python 3, you might have to `OBJC_DISABLE_INITIALIZE_FORK_SAFETY=YES`.
Closes#23021 from HyukjinKwon/SPARK-25344.
Authored-by: hyukjinkwon <gurwls223@apache.org>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
`Dataset.groupByKey` will bring in new attributes from serializer. If key type is the same as original Dataset's object type, they have same serializer output and so the attribute names will conflict.
This won't be a problem at most of cases, if we don't refer conflict attributes:
```scala
val ds: Dataset[(ClassData, Long)] = Seq(ClassData("one", 1), ClassData("two", 2)).toDS()
.map(c => ClassData(c.a, c.b + 1))
.groupByKey(p => p).count()
```
But if we use conflict attributes, `Analyzer` will complain about ambiguous references:
```scala
val ds = Seq(1, 2, 3).toDS()
val agg = ds.groupByKey(_ >= 2).agg(sum("value").as[Long], sum($"value" + 1).as[Long])
```
We have discussed two fixes https://github.com/apache/spark/pull/22944#discussion_r230977212:
1. Implicitly add alias to key attribute:
Works for primitive type. But for product type, we can't implicitly add aliases to key attributes because we might need to access key attributes by names in methods like `mapGroups`.
2. Detect conflict from key attributes and warn users to add alias manually
This might work, but needs to add some hacks to Analyzer or AttributeSeq.resolve.
This patch applies another simpler fix. We resolve aggregate expressions with `AppendColumns`'s children, instead of `AppendColumns`. `AppendColumns`'s output contains its children's output and serializer output, aggregate expressions shouldn't use serializer output.
## How was this patch tested?
Added test.
Closes#22944 from viirya/dataset_agg.
Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
An expressions with a subquery can be pushed down as a data source filter. Despite the filter is not actively used, this causes anyway a re-execution of the subquery becuase the `ReuseSubquery` optimization rule is ineffective in this case.
The PR avoids this problem by forbidding the push down of filters containing a subquery.
## How was this patch tested?
added UT
Closes#22518 from mgaido91/SPARK-25482.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
When sorting rows, ShuffleExchangeExec uses the entire row instead of just the columns references in SortOrder to create the RangePartitioner. This causes the RangePartitioner to sample entire rows to create rangeBounds and can cause OOM issues on the driver when rows contain large fields.
This change creates a projection and only use columns involved in the SortOrder for the RangePartitioner
## How was this patch tested?
Existing tests in spark-sql.
Plus
Started a local spark-shell with a small spark.driver.maxResultSize:
```
spark-shell --master 'local[16]' --conf spark.driver.maxResultSize=128M --driver-memory 4g
```
and ran the following script:
```
import com.google.common.io.Files
import org.apache.spark.SparkContext
import org.apache.spark.sql.SparkSession
import scala.util.Random
transient val sc = SparkContext.getOrCreate()
transient val spark = SparkSession.builder().getOrCreate()
import spark.implicits._
val path = Files.createTempDir().toString
// this creates a dataset with 1024 entries, each 1MB in size, across 16 partitions
sc.parallelize(0 until (1 << 10), sc.defaultParallelism).
map(_ => Array.fill(1 << 18)(Random.nextInt)).
toDS.
write.mode("overwrite").parquet(path)
spark.read.parquet(path).
orderBy('value (0)).
write.mode("overwrite").parquet(s"$path-sorted")
spark.read.parquet(s"$path-sorted").show
```
execution would fail when initializing RangePartitioner without this change.
execution succeeds and generates a correctly sorted dataset with this change.
Please review http://spark.apache.org/contributing.html before opening a pull request.
Closes#22961 from mu5358271/sort-improvement.
Authored-by: mu5358271 <shuheng.dai@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose new method for debugging queries by dumping info about their execution to a file. It saves logical, optimized and physical plan similar to the `explain()` method + generated code. One of the advantages of the method over `explain` is it does not materializes full output as one string in memory which can cause OOMs.
## How was this patch tested?
Added a few tests to `QueryExecutionSuite` to check positive and negative scenarios.
Closes#23018 from MaxGekk/truncated-plan-to-file.
Authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: Herman van Hovell <hvanhovell@databricks.com>
## What changes were proposed in this pull request?
In `SQLAppStatusListener.aggregateMetrics`, we use the `metricIds` only to filter the relevant metrics. And this is a Seq which is also sorted. When there are many metrics involved, this can be pretty inefficient. The PR proposes to use a Set for it.
## How was this patch tested?
NA
Closes#23002 from mgaido91/SPARK-26003.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Passing current value of SQL config `spark.sql.columnNameOfCorruptRecord` to `CSVOptions` inside of `DataFrameReader`.`csv()`.
## How was this patch tested?
Added a test where default value of `spark.sql.columnNameOfCorruptRecord` is changed.
Closes#23006 from MaxGekk/csv-corrupt-sql-config.
Lead-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Co-authored-by: Dongjoon Hyun <dongjoon@apache.org>
Co-authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
As comment in https://github.com/apache/spark/pull/22326#issuecomment-424923967, we test the new added optimizer rule by end-to-end test in python side, need to add suites under `org.apache.spark.sql.catalyst.optimizer` like other optimizer rules.
## How was this patch tested?
new added UT
Closes#22955 from xuanyuanking/SPARK-25949.
Authored-by: Yuanjian Li <xyliyuanjian@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Deprecated in Java 11, replace Class.newInstance with Class.getConstructor.getInstance, and primtive wrapper class constructors with valueOf or equivalent
## How was this patch tested?
Existing tests.
Closes#22988 from srowen/SPARK-25984.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Currently, Spark writes Spark version number into Hive Table properties with `spark.sql.create.version`.
```
parameters:{
spark.sql.sources.schema.part.0={
"type":"struct",
"fields":[{"name":"a","type":"integer","nullable":true,"metadata":{}}]
},
transient_lastDdlTime=1541142761,
spark.sql.sources.schema.numParts=1,
spark.sql.create.version=2.4.0
}
```
This PR aims to write Spark versions to ORC/Parquet file metadata with `org.apache.spark.sql.create.version` because we used `org.apache.` prefix in Parquet metadata already. It's different from Hive Table property key `spark.sql.create.version`, but it seems that we cannot change Hive Table property for backward compatibility.
After this PR, ORC and Parquet file generated by Spark will have the following metadata.
**ORC (`native` and `hive` implmentation)**
```
$ orc-tools meta /tmp/o
File Version: 0.12 with ...
...
User Metadata:
org.apache.spark.sql.create.version=3.0.0
```
**PARQUET**
```
$ parquet-tools meta /tmp/p
...
creator: parquet-mr version 1.10.0 (build 031a6654009e3b82020012a18434c582bd74c73a)
extra: org.apache.spark.sql.create.version = 3.0.0
extra: org.apache.spark.sql.parquet.row.metadata = {"type":"struct","fields":[{"name":"id","type":"long","nullable":false,"metadata":{}}]}
```
## How was this patch tested?
Pass the Jenkins with newly added test cases.
This closes#22255.
Closes#22932 from dongjoon-hyun/SPARK-25102.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
Very minor parser bug, but possibly problematic for code-generated queries:
Consider the following two queries:
```
SELECT avg(k) OVER (w) FROM kv WINDOW w AS (PARTITION BY v ORDER BY w) ORDER BY 1
```
and
```
SELECT avg(k) OVER w FROM kv WINDOW w AS (PARTITION BY v ORDER BY w) ORDER BY 1
```
The former, with parens around the OVER condition, fails to parse while the latter, without parens, succeeds:
```
Error in SQL statement: ParseException:
mismatched input '(' expecting {<EOF>, ',', 'FROM', 'WHERE', 'GROUP', 'ORDER', 'HAVING', 'LIMIT', 'LATERAL', 'WINDOW', 'UNION', 'EXCEPT', 'MINUS', 'INTERSECT', 'SORT', 'CLUSTER', 'DISTRIBUTE'}(line 1, pos 19)
== SQL ==
SELECT avg(k) OVER (w) FROM kv WINDOW w AS (PARTITION BY v ORDER BY w) ORDER BY 1
-------------------^^^
```
This was found when running the cockroach DB tests.
I tried PostgreSQL, The SQL with parentheses is also workable.
## How was this patch tested?
Unit test
Closes#22987 from gengliangwang/windowParentheses.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
When the queries do not use the column names with the same case, users might hit various errors. Below is a typical test failure they can hit.
```
Expected only partition pruning predicates: ArrayBuffer(isnotnull(tdate#237), (cast(tdate#237 as string) >= 2017-08-15));
org.apache.spark.sql.AnalysisException: Expected only partition pruning predicates: ArrayBuffer(isnotnull(tdate#237), (cast(tdate#237 as string) >= 2017-08-15));
at org.apache.spark.sql.catalyst.catalog.ExternalCatalogUtils$.prunePartitionsByFilter(ExternalCatalogUtils.scala:146)
at org.apache.spark.sql.catalyst.catalog.InMemoryCatalog.listPartitionsByFilter(InMemoryCatalog.scala:560)
at org.apache.spark.sql.catalyst.catalog.SessionCatalog.listPartitionsByFilter(SessionCatalog.scala:925)
```
## How was this patch tested?
Added two test cases.
Closes#22990 from gatorsmile/fix1283.
Authored-by: gatorsmile <gatorsmile@gmail.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
Remove `BenchmarkWithCodegen` as we don't use it anymore.
More details: https://github.com/apache/spark/pull/22484#discussion_r221397904
## How was this patch tested?
N/A
Closes#22985 from wangyum/SPARK-25510.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
In the PR, I propose to add new option `locale` into CSVOptions/JSONOptions to make parsing date/timestamps in local languages possible. Currently the locale is hard coded to `Locale.US`.
## How was this patch tested?
Added two tests for parsing a date from CSV/JSON - `ноя 2018`.
Closes#22951 from MaxGekk/locale.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Since Spark 2.4.0 is released, we should test it in HiveExternalCatalogVersionsSuite
## How was this patch tested?
N/A
Closes#22984 from cloud-fan/minor.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
1. OrcReadBenchmark is under hive module, so the way to run it should be
```
build/sbt "hive/test:runMain <this class>"
```
2. The benchmark "String with Nulls Scan" should be with case "String with Nulls Scan(5%/50%/95%)", not "(0.05%/0.5%/0.95%)"
3. Add the null value percentages in the test case names of DataSourceReadBenchmark, for the benchmark "String with Nulls Scan" .
## How was this patch tested?
Re-run benchmarks
Closes#22965 from gengliangwang/fixHiveOrcReadBenchmark.
Lead-authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Co-authored-by: Gengliang Wang <ltnwgl@gmail.com>
Co-authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
#22970 fixed Scala 2.12 build error, and this PR updates the function according to the review comments.
## How was this patch tested?
This is also manually tested with Scala 2.12 build.
Closes#22978 from dongjoon-hyun/SPARK-25676-3.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This is a follow-up pr of #20014 which introduced `SparkOutOfMemoryError` to avoid killing the entire executor when an `OutOfMemoryError` is thrown.
We should throw `SparkOutOfMemoryError` in `HashAggregateExec`, too.
## How was this patch tested?
Existing tests.
Closes#22969 from ueshin/issues/SPARK-22827/oome.
Authored-by: Takuya UESHIN <ueshin@databricks.com>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
Currently, `SQLQueryTestSuite` is sensitive in terms of the bytes of parquet files in table partitions. If we change the default file format (from Parquet to ORC) or update the metadata of them, the test case should be changed accordingly. This PR aims to make `SQLQueryTestSuite` more robust by ignoring the partition byte statistics.
```
-Partition Statistics 1144 bytes, 2 rows
+Partition Statistics [not included in comparison] bytes, 2 rows
```
## How was this patch tested?
Pass the Jenkins with the newly updated test cases.
Closes#22972 from dongjoon-hyun/SPARK-25971.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
In the PR, I propose to port existing JSON tests from `JsonFunctionsSuite` that are applicable for CSV, and put them to `CsvFunctionsSuite`. In particular:
- roundtrip `from_csv` to `to_csv`, and `to_csv` to `from_csv`
- using `schema_of_csv` in `from_csv`
- Java API `from_csv`
- using `from_csv` and `to_csv` in exprs.
Closes#22960 from MaxGekk/csv-additional-tests.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
The PR fixes an issue when the corrupt record column specified via `spark.sql.columnNameOfCorruptRecord` or JSON options `columnNameOfCorruptRecord` is propagated to JacksonParser, and returned row breaks an assumption in `FailureSafeParser` that the row must contain only actual data. The issue is fixed by passing actual schema without the corrupt record field into `JacksonParser`.
## How was this patch tested?
Added a test with the corrupt record column in the middle of user's schema.
Closes#22958 from MaxGekk/from_json-corrupt-record-schema.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This PR fixes the Scala-2.12 build.
## How was this patch tested?
Manual build with Scala-2.12 profile.
Closes#22970 from dongjoon-hyun/SPARK-25676-2.12.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: DB Tsai <d_tsai@apple.com>
## What changes were proposed in this pull request?
- Remove some AccumulableInfo .apply() methods
- Remove non-label-specific multiclass precision/recall/fScore in favor of accuracy
- Remove toDegrees/toRadians in favor of degrees/radians (SparkR: only deprecated)
- Remove approxCountDistinct in favor of approx_count_distinct (SparkR: only deprecated)
- Remove unused Python StorageLevel constants
- Remove Dataset unionAll in favor of union
- Remove unused multiclass option in libsvm parsing
- Remove references to deprecated spark configs like spark.yarn.am.port
- Remove TaskContext.isRunningLocally
- Remove ShuffleMetrics.shuffle* methods
- Remove BaseReadWrite.context in favor of session
- Remove Column.!== in favor of =!=
- Remove Dataset.explode
- Remove Dataset.registerTempTable
- Remove SQLContext.getOrCreate, setActive, clearActive, constructors
Not touched yet
- everything else in MLLib
- HiveContext
- Anything deprecated more recently than 2.0.0, generally
## How was this patch tested?
Existing tests
Closes#22921 from srowen/SPARK-25908.
Lead-authored-by: Sean Owen <sean.owen@databricks.com>
Co-authored-by: hyukjinkwon <gurwls223@apache.org>
Co-authored-by: Sean Owen <srowen@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
JVMs can't allocate arrays of length exactly Int.MaxValue, so ensure we never try to allocate an array that big. This commit changes some defaults & configs to gracefully fallover to something that doesn't require one large array in some cases; in other cases it simply improves an error message for cases which will still fail.
Closes#22818 from squito/SPARK-25827.
Authored-by: Imran Rashid <irashid@cloudera.com>
Signed-off-by: Imran Rashid <irashid@cloudera.com>
## What changes were proposed in this pull request?
Fix for `CsvToStructs` to take into account SQL config `spark.sql.columnNameOfCorruptRecord` similar to `from_json`.
## How was this patch tested?
Added new test where `spark.sql.columnNameOfCorruptRecord` is set to corrupt column name different from default.
Closes#22956 from MaxGekk/csv-tests.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Refactor BenchmarkWideTable to use main method.
Generate benchmark result:
```
SPARK_GENERATE_BENCHMARK_FILES=1 build/sbt "sql/test:runMain org.apache.spark.sql.execution.benchmark.WideTableBenchmark"
```
## How was this patch tested?
manual tests
Closes#22823 from yucai/BenchmarkWideTable.
Lead-authored-by: yucai <yyu1@ebay.com>
Co-authored-by: Yucai Yu <yucai.yu@foxmail.com>
Co-authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
Upgrade ASM to 7.x to support JDK11
## How was this patch tested?
Existing tests.
Closes#22953 from dbtsai/asm7.
Authored-by: DB Tsai <d_tsai@apple.com>
Signed-off-by: DB Tsai <d_tsai@apple.com>
## What changes were proposed in this pull request?
Currently definitions of config entries in `core` module are in several files separately. We should move them into `internal/config` to be easy to manage.
## How was this patch tested?
Existing tests.
Closes#22928 from ueshin/issues/SPARK-25926/single_config_file.
Authored-by: Takuya UESHIN <ueshin@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Fix typos and misspellings, per https://github.com/apache/spark-website/pull/158#issuecomment-435790366
## How was this patch tested?
Existing tests.
Closes#22950 from srowen/Typos.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
As per the discussion in [#22823](https://github.com/apache/spark/pull/22823/files#r228400706), add a new configuration to make the split threshold for the code generated function configurable.
When the generated Java function source code exceeds `spark.sql.codegen.methodSplitThreshold`, it will be split into multiple small functions.
## How was this patch tested?
manual tests
Closes#22847 from yucai/splitThreshold.
Authored-by: yucai <yyu1@ebay.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This is a follow-up pr of #22892 which moved `sample.json` from hive module to sql module, but we still need the file in hive module.
## How was this patch tested?
Existing tests.
Closes#22942 from ueshin/issues/SPARK-25884/sample.json.
Authored-by: Takuya UESHIN <ueshin@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to extend `UnaryExecNode` instead of `SparkPlan` by unary nodes.
Closes#22925 from MaxGekk/unary-exec-node.
Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
New functions takes a struct and converts it to a CSV strings using passed CSV options. It accepts the same CSV options as CSV data source does.
## How was this patch tested?
Added `CsvExpressionsSuite`, `CsvFunctionsSuite` as well as R, Python and SQL tests similar to tests for `to_json()`
Closes#22626 from MaxGekk/to_csv.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Added new benchmark which forcibly invokes Jackson parser to check overhead of its creation for short and wide JSON strings. Existing benchmarks do not allow to check that due to an optimisation introduced by #21909 for empty schema pushed down to JSON datasource. The `count()` action passes empty schema as required schema to the datasource, and Jackson parser is not created at all in that case.
Besides of new benchmark I also refactored existing benchmarks:
- Added `numIters` to control number of iteration in each benchmark
- Renamed `JSON per-line parsing` -> `count a short column`, `JSON parsing of wide lines` -> `count a wide column`, and `Count a dataset with 10 columns` -> `Select a subset of 10 columns`.
Closes#22920 from MaxGekk/json-benchmark-follow-up.
Lead-authored-by: Maxim Gekk <max.gekk@gmail.com>
Co-authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
'refreshInterval' is not used any where in the headerSparkPage method. So, we don't need to pass the parameter while calling the 'headerSparkPage' method.
## How was this patch tested?
Existing tests
Closes#22864 from shahidki31/unusedCode.
Authored-by: Shahid <shahidki31@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Unfortunately, it seems that we missed this in 2.4.0. In Spark 2.4, if the default file system is not the local file system, `LOAD DATA LOCAL INPATH` only works in case of absolute paths. This PR aims to fix it to support relative paths. This is a regression in 2.4.0.
```scala
$ ls kv1.txt
kv1.txt
scala> spark.sql("LOAD DATA LOCAL INPATH 'kv1.txt' INTO TABLE t")
org.apache.spark.sql.AnalysisException: LOAD DATA input path does not exist: kv1.txt;
```
## How was this patch tested?
Pass the Jenkins
Closes#22927 from dongjoon-hyun/SPARK-LOAD.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
a followup of https://github.com/apache/spark/pull/22749.
When we construct the new serializer in `ExpressionEncoder.tuple`, we don't need to add `if(isnull ...)` check for each field. They are either simple expressions that can propagate null correctly(e.g. `GetStructField(GetColumnByOrdinal(0, schema), index)`), or complex expression that already have the isnull check.
## How was this patch tested?
existing tests
Closes#22898 from cloud-fan/minor.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
When `SHOW CREATE TABLE` for Datasource tables, we are missing `TBLPROPERTIES` and `COMMENT`, and we should use `LOCATION` instead of path in `OPTION`.
## How was this patch tested?
Splitted `ShowCreateTableSuite` to confirm to work with both `InMemoryCatalog` and `HiveExternalCatalog`, and added some tests.
Closes#22892 from ueshin/issues/SPARK-25884/show_create_table.
Authored-by: Takuya UESHIN <ueshin@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
In the PR, I propose to add new function - *schema_of_csv()* which infers schema of CSV string literal. The result of the function is a string containing a schema in DDL format. For example:
```sql
select schema_of_csv('1|abc', map('delimiter', '|'))
```
```
struct<_c0:int,_c1:string>
```
## How was this patch tested?
Added new tests to `CsvFunctionsSuite`, `CsvExpressionsSuite` and SQL tests to `csv-functions.sql`
Closes#22666 from MaxGekk/schema_of_csv-function.
Lead-authored-by: hyukjinkwon <gurwls223@apache.org>
Co-authored-by: Maxim Gekk <maxim.gekk@databricks.com>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This PR proposes a new optimization rule that replaces `Literal(null, _)` with `FalseLiteral` in conditions in `Join` and `Filter`, predicates in `If`, conditions in `CaseWhen`.
The idea is that some expressions evaluate to `false` if the underlying expression is `null` (as an example see `GeneratePredicate$create` or `doGenCode` and `eval` methods in `If` and `CaseWhen`). Therefore, we can replace `Literal(null, _)` with `FalseLiteral`, which can lead to more optimizations later on.
Let’s consider a few examples.
```
val df = spark.range(1, 100).select($"id".as("l"), ($"id" > 50).as("b"))
df.createOrReplaceTempView("t")
df.createOrReplaceTempView("p")
```
**Case 1**
```
spark.sql("SELECT * FROM t WHERE if(l > 10, false, NULL)").explain(true)
// without the new rule
…
== Optimized Logical Plan ==
Project [id#0L AS l#2L, cast(id#0L as string) AS s#3]
+- Filter if ((id#0L > 10)) false else null
+- Range (1, 100, step=1, splits=Some(12))
== Physical Plan ==
*(1) Project [id#0L AS l#2L, cast(id#0L as string) AS s#3]
+- *(1) Filter if ((id#0L > 10)) false else null
+- *(1) Range (1, 100, step=1, splits=12)
// with the new rule
…
== Optimized Logical Plan ==
LocalRelation <empty>, [l#2L, s#3]
== Physical Plan ==
LocalTableScan <empty>, [l#2L, s#3]
```
**Case 2**
```
spark.sql("SELECT * FROM t WHERE CASE WHEN l < 10 THEN null WHEN l > 40 THEN false ELSE null END”).explain(true)
// without the new rule
...
== Optimized Logical Plan ==
Project [id#0L AS l#2L, cast(id#0L as string) AS s#3]
+- Filter CASE WHEN (id#0L < 10) THEN null WHEN (id#0L > 40) THEN false ELSE null END
+- Range (1, 100, step=1, splits=Some(12))
== Physical Plan ==
*(1) Project [id#0L AS l#2L, cast(id#0L as string) AS s#3]
+- *(1) Filter CASE WHEN (id#0L < 10) THEN null WHEN (id#0L > 40) THEN false ELSE null END
+- *(1) Range (1, 100, step=1, splits=12)
// with the new rule
...
== Optimized Logical Plan ==
LocalRelation <empty>, [l#2L, s#3]
== Physical Plan ==
LocalTableScan <empty>, [l#2L, s#3]
```
**Case 3**
```
spark.sql("SELECT * FROM t JOIN p ON IF(t.l > p.l, null, false)").explain(true)
// without the new rule
...
== Optimized Logical Plan ==
Join Inner, if ((l#2L > l#37L)) null else false
:- Project [id#0L AS l#2L, cast(id#0L as string) AS s#3]
: +- Range (1, 100, step=1, splits=Some(12))
+- Project [id#0L AS l#37L, cast(id#0L as string) AS s#38]
+- Range (1, 100, step=1, splits=Some(12))
== Physical Plan ==
BroadcastNestedLoopJoin BuildRight, Inner, if ((l#2L > l#37L)) null else false
:- *(1) Project [id#0L AS l#2L, cast(id#0L as string) AS s#3]
: +- *(1) Range (1, 100, step=1, splits=12)
+- BroadcastExchange IdentityBroadcastMode
+- *(2) Project [id#0L AS l#37L, cast(id#0L as string) AS s#38]
+- *(2) Range (1, 100, step=1, splits=12)
// with the new rule
...
== Optimized Logical Plan ==
LocalRelation <empty>, [l#2L, s#3, l#37L, s#38]
```
## How was this patch tested?
This PR comes with a set of dedicated tests.
Closes#22857 from aokolnychyi/spark-25860.
Authored-by: Anton Okolnychyi <aokolnychyi@apple.com>
Signed-off-by: DB Tsai <d_tsai@apple.com>
## What changes were proposed in this pull request?
When `spark.sql.hive.metastore.version` is misconfigured, we had better give a directional error message.
**BEFORE**
```scala
scala> sql("show databases").show
scala.MatchError: 2.4 (of class java.lang.String)
```
**AFTER**
```scala
scala> sql("show databases").show
java.lang.UnsupportedOperationException: Unsupported Hive Metastore version (2.4).
Please set spark.sql.hive.metastore.version with a valid version.
```
## How was this patch tested?
Manual.
Closes#22902 from dongjoon-hyun/SPARK-25893.
Authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
Currently in `FailureSafeParser` and `from_avro`, the exception is created with such code
```
throw new SparkException("Malformed records are detected in record parsing. " +
s"Parse Mode: ${FailFastMode.name}.", e.cause)
```
1. The cause part should be `e` instead of `e.cause`
2. If `e` contains non-null message, it should be shown in `from_json`/`from_csv`/`from_avro`, e.g.
```
com.fasterxml.jackson.core.JsonParseException: Unexpected character ('1' (code 49)): was expecting a colon to separate field name and value
at [Source: (InputStreamReader); line: 1, column: 7]
```
3.Kindly show hint for trying PERMISSIVE in error message.
## How was this patch tested?
Unit test.
Closes#22895 from gengliangwang/improve_error_msg.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Refactor BuiltInDataSourceWriteBenchmark, DataSourceWriteBenchmark and AvroWriteBenchmark to use main method.
```
SPARK_GENERATE_BENCHMARK_FILES=1 build/sbt "sql/test:runMain org.apache.spark.sql.execution.benchmark.BuiltInDataSourceWriteBenchmark"
SPARK_GENERATE_BENCHMARK_FILES=1 build/sbt "avro/test:runMain org.apache.spark.sql.execution.benchmark.AvroWriteBenchmark"
```
## How was this patch tested?
manual tests
Closes#22861 from yucai/BuiltInDataSourceWriteBenchmark.
Lead-authored-by: yucai <yyu1@ebay.com>
Co-authored-by: Yucai Yu <yucai.yu@foxmail.com>
Co-authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
This patch removes the rangeBetween functions introduced in SPARK-21608. As explained in SPARK-25841, these functions are confusing and don't quite work. We will redesign them and introduce better ones in SPARK-25843.
## How was this patch tested?
Removed relevant test cases as well. These test cases will need to be added back in SPARK-25843.
Closes#22870 from rxin/SPARK-25862.
Lead-authored-by: Reynold Xin <rxin@databricks.com>
Co-authored-by: hyukjinkwon <gurwls223@apache.org>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
Refactor JSONBenchmark to use main method
use spark-submit:
`bin/spark-submit --class org.apache.spark.sql.execution.datasources.json.JSONBenchmark --jars ./core/target/spark-core_2.11-3.0.0-SNAPSHOT-tests.jar,./sql/catalyst/target/spark-catalyst_2.11-3.0.0-SNAPSHOT-tests.jar ./sql/core/target/spark-sql_2.11-3.0.0-SNAPSHOT-tests.jar`
Generate benchmark result:
`SPARK_GENERATE_BENCHMARK_FILES=1 build/sbt "sql/test:runMain org.apache.spark.sql.execution.datasources.json.JSONBenchmark"`
## How was this patch tested?
manual tests
Closes#22844 from heary-cao/JSONBenchmarks.
Lead-authored-by: caoxuewen <cao.xuewen@zte.com.cn>
Co-authored-by: heary <cao.xuewen@zte.com.cn>
Co-authored-by: Dongjoon Hyun <dongjoon@apache.org>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
When we compare attributes, in general, we should always refer to semantic equality, as the default `equal` method can return false when there are "cosmetic" differences between them, but still they are the same thing; at least we have to consider them so when analyzing/optimizing queries.
The PR focuses on the usage and comparison of the `output` of a `LogicalPlan`, which is a `Seq[Attribute]` in `AliasViewChild`. In this case, using equality implicitly fails to check the semantic equality. This results in the operator failing to stabilize.
## How was this patch tested?
running the tests with the patch provided by maryannxue in https://github.com/apache/spark/pull/22060Closes#22713 from mgaido91/SPARK-25691.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
use spark-submit:
`bin/spark-submit --class org.apache.spark.sql.execution.datasources.csv.CSVBenchmark --jars ./core/target/spark-core_2.11-3.0.0-SNAPSHOT-tests.jar,./sql/catalyst/target/spark-catalyst_2.11-3.0.0-SNAPSHOT-tests.jar ./sql/core/target/spark-sql_2.11-3.0.0-SNAPSHOT-tests.jar`
Generate benchmark result:
`SPARK_GENERATE_BENCHMARK_FILES=1 build/sbt "sql/test:runMain org.apache.spark.sql.execution.datasources.csv.CSVBenchmark"`
## How was this patch tested?
manual tests
Closes#22845 from heary-cao/CSVBenchmarks.
Authored-by: caoxuewen <cao.xuewen@zte.com.cn>
Signed-off-by: Dongjoon Hyun <dongjoon@apache.org>
## What changes were proposed in this pull request?
Currently, the BroadcastHashJoinExec physical plan supports CodeGen and non-codegen, but only CodeGen code is tested in the unit tests of InnerJoinSuite、OuterJoinSuite、ExistenceJoinSuite, and non-codegen code is not tested. This PR supplements this part of the test.
## How was this patch tested?
add new unit tested.
Closes#22755 from heary-cao/AddTestToBroadcastHashJoinExec.
Authored-by: caoxuewen <cao.xuewen@zte.com.cn>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This PR proposes to avoid hardcorded configuration keys in SQLConf's `doc.
## How was this patch tested?
Manually verified.
Closes#22877 from HyukjinKwon/minor-conf-name.
Authored-by: hyukjinkwon <gurwls223@apache.org>
Signed-off-by: hyukjinkwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
These two classes were added for regr_ expression support (SPARK-23907). These have been removed and hence we can remove these base classes and inline the logic in the concrete classes.
## How was this patch tested?
Existing tests.
Closes#22856 from dilipbiswal/average_cleanup.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Code generation is incorrect if `outputVars` parameter of `consume` method in `CodegenSupport` contains a lazily evaluated stream of expressions.
This PR fixes the issue by forcing the evaluation of `inputVars` before generating the code for UnsafeRow.
## How was this patch tested?
Tested with the sample program provided in https://issues.apache.org/jira/browse/SPARK-25767Closes#22789 from peter-toth/SPARK-25767.
Authored-by: Peter Toth <peter.toth@gmail.com>
Signed-off-by: Herman van Hovell <hvanhovell@databricks.com>
## What changes were proposed in this pull request?
Set main args correctly in BenchmarkBase, to make it accessible for its subclass.
It will benefit:
- BuiltInDataSourceWriteBenchmark
- AvroWriteBenchmark
## How was this patch tested?
manual tests
Closes#22872 from yucai/main_args.
Authored-by: yucai <yyu1@ebay.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Extractors are made of 2 expressions, one of them defines the the value to be extract from (called `child`) and the other defines the way of extraction (called `extraction`). In this term extractors have 2 children so they shouldn't be `UnaryExpression`s.
`ResolveReferences` was changed in this commit: 36b826f5d1 which resulted a regression with nested extractors. An extractor need to define its children as the set of both `child` and `extraction`; and should try to resolve both in `ResolveReferences`.
This PR changes `UnresolvedExtractValue` to a `BinaryExpression`.
## How was this patch tested?
added UT
Closes#22817 from peter-toth/SPARK-25816.
Authored-by: Peter Toth <peter.toth@gmail.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
The instance of `FileSplit` is redundant for `ParquetFileFormat` and `hive\orc\OrcFileFormat` class.
## How was this patch tested?
Existing unit tests in `ParquetQuerySuite.scala` and `HiveOrcQuerySuite.scala`
Closes#22802 from 10110346/FileSplitnotneed.
Authored-by: liuxian <liu.xian3@zte.com.cn>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
WindowSpecDefinition checks start < last, but CalendarIntervalType is not comparable, so it would throw the following exception at runtime:
```
scala.MatchError: CalendarIntervalType (of class org.apache.spark.sql.types.CalendarIntervalType$) at
org.apache.spark.sql.catalyst.util.TypeUtils$.getInterpretedOrdering(TypeUtils.scala:58) at
org.apache.spark.sql.catalyst.expressions.BinaryComparison.ordering$lzycompute(predicates.scala:592) at
org.apache.spark.sql.catalyst.expressions.BinaryComparison.ordering(predicates.scala:592) at
org.apache.spark.sql.catalyst.expressions.GreaterThan.nullSafeEval(predicates.scala:797) at org.apache.spark.sql.catalyst.expressions.BinaryExpression.eval(Expression.scala:496) at org.apache.spark.sql.catalyst.expressions.SpecifiedWindowFrame.isGreaterThan(windowExpressions.scala:245) at
org.apache.spark.sql.catalyst.expressions.SpecifiedWindowFrame.checkInputDataTypes(windowExpressions.scala:216) at
org.apache.spark.sql.catalyst.expressions.Expression.resolved$lzycompute(Expression.scala:171) at
org.apache.spark.sql.catalyst.expressions.Expression.resolved(Expression.scala:171) at
org.apache.spark.sql.catalyst.expressions.Expression$$anonfun$childrenResolved$1.apply(Expression.scala:183) at
org.apache.spark.sql.catalyst.expressions.Expression$$anonfun$childrenResolved$1.apply(Expression.scala:183) at
scala.collection.IndexedSeqOptimized$class.prefixLengthImpl(IndexedSeqOptimized.scala:38) at scala.collection.IndexedSeqOptimized$class.forall(IndexedSeqOptimized.scala:43) at scala.collection.mutable.ArrayBuffer.forall(ArrayBuffer.scala:48) at
org.apache.spark.sql.catalyst.expressions.Expression.childrenResolved(Expression.scala:183) at
org.apache.spark.sql.catalyst.expressions.WindowSpecDefinition.resolved$lzycompute(windowExpressions.scala:48) at
org.apache.spark.sql.catalyst.expressions.WindowSpecDefinition.resolved(windowExpressions.scala:48) at
org.apache.spark.sql.catalyst.expressions.Expression$$anonfun$childrenResolved$1.apply(Expression.scala:183) at
org.apache.spark.sql.catalyst.expressions.Expression$$anonfun$childrenResolved$1.apply(Expression.scala:183) at
scala.collection.LinearSeqOptimized$class.forall(LinearSeqOptimized.scala:83)
```
We fix the issue by only perform the check on boundary expressions that are AtomicType.
## How was this patch tested?
Add new test case in `DataFrameWindowFramesSuite`
Closes#22853 from jiangxb1987/windowBoundary.
Authored-by: Xingbo Jiang <xingbo.jiang@databricks.com>
Signed-off-by: Xingbo Jiang <xingbo.jiang@databricks.com>
## What changes were proposed in this pull request?
After https://github.com/apache/spark/pull/22745 , Dataset encoder supports the combination of java bean and map type. This PR is to fix the Scala side.
The reason why it didn't work before is, `CatalystToExternalMap` tries to get the data type of the input map expression, while it can be unresolved and its data type is known. To fix it, we can follow `UnresolvedMapObjects`, to create a `UnresolvedCatalystToExternalMap`, and only create `CatalystToExternalMap` when the input map expression is resolved and the data type is known.
## How was this patch tested?
enable a old test case
Closes#22812 from cloud-fan/map.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Implements Every, Some, Any aggregates in SQL. These new aggregate expressions are analyzed in normal way and rewritten to equivalent existing aggregate expressions in the optimizer.
Every(x) => Min(x) where x is boolean.
Some(x) => Max(x) where x is boolean.
Any is a synonym for Some.
SQL
```
explain extended select every(v) from test_agg group by k;
```
Plan :
```
== Parsed Logical Plan ==
'Aggregate ['k], [unresolvedalias('every('v), None)]
+- 'UnresolvedRelation `test_agg`
== Analyzed Logical Plan ==
every(v): boolean
Aggregate [k#0], [every(v#1) AS every(v)#5]
+- SubqueryAlias `test_agg`
+- Project [k#0, v#1]
+- SubqueryAlias `test_agg`
+- LocalRelation [k#0, v#1]
== Optimized Logical Plan ==
Aggregate [k#0], [min(v#1) AS every(v)#5]
+- LocalRelation [k#0, v#1]
== Physical Plan ==
*(2) HashAggregate(keys=[k#0], functions=[min(v#1)], output=[every(v)#5])
+- Exchange hashpartitioning(k#0, 200)
+- *(1) HashAggregate(keys=[k#0], functions=[partial_min(v#1)], output=[k#0, min#7])
+- LocalTableScan [k#0, v#1]
Time taken: 0.512 seconds, Fetched 1 row(s)
```
## How was this patch tested?
Added tests in SQLQueryTestSuite, DataframeAggregateSuite
Closes#22809 from dilipbiswal/SPARK-19851-specific-rewrite.
Authored-by: Dilip Biswal <dbiswal@us.ibm.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Change the version number in comment of `HiveUtils.newClientForExecution` from `13` to `1.2.1` .
## How was this patch tested?
N/A
Closes#22850 from laskfla/HiveUtils-Comment.
Authored-by: laskfla <wwlsax11@gmail.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
Remove SQLContext methods deprecated in 1.4
## How was this patch tested?
Existing tests.
Closes#22815 from srowen/SPARK-25821.
Authored-by: Sean Owen <sean.owen@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
## What changes were proposed in this pull request?
In https://github.com/apache/spark/pull/21596, Jackson is upgraded to 2.9.6.
There are some deprecated API warnings in SQLListener.
Create a trivial PR to fix them.
```
[warn] SQLListener.scala:92: method uncheckedSimpleType in class TypeFactory is deprecated: see corresponding Javadoc for more information.
[warn] val objectType = typeFactory.uncheckedSimpleType(classOf[Object])
[warn]
[warn] SQLListener.scala:93: method constructSimpleType in class TypeFactory is deprecated: see corresponding Javadoc for more information.
[warn] typeFactory.constructSimpleType(classOf[(_, _)], classOf[(_, _)], Array(objectType, objectType))
[warn]
[warn] SQLListener.scala:97: method uncheckedSimpleType in class TypeFactory is deprecated: see corresponding Javadoc for more information.
[warn] val longType = typeFactory.uncheckedSimpleType(classOf[Long])
[warn]
[warn] SQLListener.scala:98: method constructSimpleType in class TypeFactory is deprecated: see corresponding Javadoc for more information.
[warn] typeFactory.constructSimpleType(classOf[(_, _)], classOf[(_, _)], Array(longType, longType))
```
## How was this patch tested?
Existing unit tests.
Closes#22848 from gengliangwang/fixSQLListenerWarning.
Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Sean Owen <sean.owen@databricks.com>
