## What changes were proposed in this pull request?
Add extractors for v2 catalog transforms.
These extractors are used to match transforms that are equivalent to Spark's internal case classes. This makes it easier to work with v2 transforms.
## How was this patch tested?
Added test suite for the new extractors.
Closes#24812 from rdblue/SPARK-27965-add-transform-extractors.
Authored-by: Ryan Blue <blue@apache.org>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
In PR https://github.com/apache/spark/pull/24365, we pass in the partitionBy columns as options in `DataFrameWriter`. To make this change less intrusive for a patch release, we added a feature flag `LEGACY_PASS_PARTITION_BY_AS_OPTIONS` with the default to be false.
For 3.0, we should just do the correct behavior for DSV1, i.e., always passing partitionBy as options, and remove this legacy feature flag.
## How was this patch tested?
Existing tests.
Closes#24784 from liwensun/SPARK-27453-default.
Authored-by: liwensun <liwen.sun@databricks.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Move methods that implement v2 catalog operations to CatalogV2Util so they can be used in #24768.
## How was this patch tested?
Behavior is validated by existing tests.
Closes#24813 from rdblue/SPARK-27964-add-catalog-v2-util.
Authored-by: Ryan Blue <blue@apache.org>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
This moves parsing logic for `ALTER TABLE` into Catalyst and adds parsed logical plans for alter table changes that use multi-part identifiers. This PR is similar to SPARK-27108, PR #24029, that created parsed logical plans for create and CTAS.
* Create parsed logical plans
* Move parsing logic into Catalyst's AstBuilder
* Convert to DataSource plans in DataSourceResolution
* Parse `ALTER TABLE ... SET LOCATION ...` separately from the partition variant
* Parse `ALTER TABLE ... ALTER COLUMN ... [TYPE dataType] [COMMENT comment]` [as discussed on the dev list](http://apache-spark-developers-list.1001551.n3.nabble.com/DISCUSS-Syntax-for-table-DDL-td25197.html#a25270)
* Parse `ALTER TABLE ... RENAME COLUMN ... TO ...`
* Parse `ALTER TABLE ... DROP COLUMNS ...`
## How was this patch tested?
* Added new tests in Catalyst's `DDLParserSuite`
* Moved converted plan tests from SQL `DDLParserSuite` to `PlanResolutionSuite`
* Existing tests for regressions
Closes#24723 from rdblue/SPARK-27857-add-alter-table-statements-in-catalyst.
Authored-by: Ryan Blue <blue@apache.org>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
Currently we are in a strange status that, some data source v2 interfaces(catalog related) are in sql/catalyst, some data source v2 interfaces(Table, ScanBuilder, DataReader, etc.) are in sql/core.
I don't see a reason to keep data source v2 API in 2 modules. If we should pick one module, I think sql/catalyst is the one to go.
Catalyst module already has some user-facing stuff like DataType, Row, etc. And we have to update `Analyzer` and `SessionCatalog` to support the new catalog plugin, which needs to be in the catalyst module.
This PR can solve the problem we have in https://github.com/apache/spark/pull/24246
## How was this patch tested?
existing tests
Closes#24416 from cloud-fan/move.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
This updates CTE substitution to avoid needing to run all resolution rules on each substituted expression. Running resolution rules was previously used to avoid infinite recursion. In the updated rule, CTE plans are substituted as sub-queries from right to left. Using this scope-based order, it is not necessary to replace multiple CTEs at the same time using `resolveOperatorsDown`. Instead, `resolveOperatorsUp` is used to replace each CTE individually.
By resolving using `resolveOperatorsUp`, this no longer needs to run all analyzer rules on each substituted expression. Previously, this was done to apply `ResolveRelations`, which would throw an `AnalysisException` for all unresolved relations so that unresolved relations that may cause recursive substitutions were not left in the plan. Because this is no longer needed, `ResolveRelations` no longer needs to throw `AnalysisException` and resolution can be done in multiple rules.
## How was this patch tested?
Existing tests in `SQLQueryTestSuite`, `cte.sql`.
Closes#24763 from rdblue/SPARK-27909-fix-cte-substitution.
Authored-by: Ryan Blue <blue@apache.org>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
I was quite surprised by the following behavior:
`SELECT str_to_map('1:2|3:4', '|')`
vs
`SELECT str_to_map(replace('1:2|3:4', '|', ','))`
The documentation does not make clear at all what's going on here, but a [dive into the source code shows](fa0d4bf699/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/complexTypeCreator.scala (L461-L466)) that `split` is being used and in turn the interpretation of `split`'s arguments as RegEx is clearly documented.
## What changes were proposed in this pull request?
Documentation clarification
## How was this patch tested?
N/A
Closes#23888 from MichaelChirico/patch-2.
Authored-by: Michael Chirico <michaelchirico4@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
This PR aims to add `interceptParseException` test utility function to `AnalysisTest` to reduce the duplications of `intercept` functions.
## How was this patch tested?
Pass the Jenkins with the updated test suites.
Closes#24769 from dongjoon-hyun/SPARK-27920.
Authored-by: Dongjoon Hyun <dhyun@apple.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
`spark.sql.execution.arrow.enabled` was added when we add PySpark arrow optimization.
Later, in the current master, SparkR arrow optimization was added and it's controlled by the same configuration `spark.sql.execution.arrow.enabled`.
There look two issues about this:
1. `spark.sql.execution.arrow.enabled` in PySpark was added from 2.3.0 whereas SparkR optimization was added 3.0.0. The stability is different so it's problematic when we change the default value for one of both optimization first.
2. Suppose users want to share some JVM by PySpark and SparkR. They are currently forced to use the optimization for all or none if the configuration is set globally.
This PR proposes two separate configuration groups for PySpark and SparkR about Arrow optimization:
- Deprecate `spark.sql.execution.arrow.enabled`
- Add `spark.sql.execution.arrow.pyspark.enabled` (fallback to `spark.sql.execution.arrow.enabled`)
- Add `spark.sql.execution.arrow.sparkr.enabled`
- Deprecate `spark.sql.execution.arrow.fallback.enabled`
- Add `spark.sql.execution.arrow.pyspark.fallback.enabled ` (fallback to `spark.sql.execution.arrow.fallback.enabled`)
Note that `spark.sql.execution.arrow.maxRecordsPerBatch` is used within JVM side for both.
Note that `spark.sql.execution.arrow.fallback.enabled` was added due to behaviour change. We don't need it in SparkR - SparkR side has the automatic fallback.
## How was this patch tested?
Manually tested and some unittests were added.
Closes#24700 from HyukjinKwon/separate-sparkr-arrow.
Authored-by: HyukjinKwon <gurwls223@apache.org>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
As outlined in the JIRA by JoshRosen, our conversion mechanism from catalyst types to scala ones is pretty inefficient for primitive data types. Indeed, in these cases, most of the times we are adding useless calls to `identity` function or anyway to functions which return the same value. Using the information we have when we generate the code, we can avoid most of these overheads.
## How was this patch tested?
Here is a simple test which shows the benefit that this PR can bring:
```
test("SPARK-27684: perf evaluation") {
val intLongUdf = ScalaUDF(
(a: Int, b: Long) => a + b, LongType,
Literal(1) :: Literal(1L) :: Nil,
true :: true :: Nil,
nullable = false)
val plan = generateProject(
MutableProjection.create(Alias(intLongUdf, s"udf")() :: Nil),
intLongUdf)
plan.initialize(0)
var i = 0
val N = 100000000
val t0 = System.nanoTime()
while(i < N) {
plan(EmptyRow).get(0, intLongUdf.dataType)
plan(EmptyRow).get(0, intLongUdf.dataType)
plan(EmptyRow).get(0, intLongUdf.dataType)
plan(EmptyRow).get(0, intLongUdf.dataType)
plan(EmptyRow).get(0, intLongUdf.dataType)
plan(EmptyRow).get(0, intLongUdf.dataType)
plan(EmptyRow).get(0, intLongUdf.dataType)
plan(EmptyRow).get(0, intLongUdf.dataType)
plan(EmptyRow).get(0, intLongUdf.dataType)
plan(EmptyRow).get(0, intLongUdf.dataType)
i += 1
}
val t1 = System.nanoTime()
println(s"Avg time: ${(t1 - t0).toDouble / N} ns")
}
```
The output before the patch is:
```
Avg time: 51.27083294 ns
```
after, we get:
```
Avg time: 11.85874227 ns
```
which is ~5X faster.
Moreover a benchmark has been added for Scala UDF. The output after the patch can be seen in this PR, before the patch, the output was:
```
================================================================================================
UDF with mixed input types
================================================================================================
Java HotSpot(TM) 64-Bit Server VM 1.8.0_152-b16 on Mac OS X 10.13.6
Intel(R) Core(TM) i7-4558U CPU 2.80GHz
long/nullable int/string to string: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
long/nullable int/string to string wholestage off 257 287 42 0,4 2569,5 1,0X
long/nullable int/string to string wholestage on 158 172 18 0,6 1579,0 1,6X
Java HotSpot(TM) 64-Bit Server VM 1.8.0_152-b16 on Mac OS X 10.13.6
Intel(R) Core(TM) i7-4558U CPU 2.80GHz
long/nullable int/string to option: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
long/nullable int/string to option wholestage off 104 107 5 1,0 1037,9 1,0X
long/nullable int/string to option wholestage on 80 92 12 1,2 804,0 1,3X
Java HotSpot(TM) 64-Bit Server VM 1.8.0_152-b16 on Mac OS X 10.13.6
Intel(R) Core(TM) i7-4558U CPU 2.80GHz
long/nullable int to primitive: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
long/nullable int to primitive wholestage off 71 76 7 1,4 712,1 1,0X
long/nullable int to primitive wholestage on 64 71 6 1,6 636,2 1,1X
================================================================================================
UDF with primitive types
================================================================================================
Java HotSpot(TM) 64-Bit Server VM 1.8.0_152-b16 on Mac OS X 10.13.6
Intel(R) Core(TM) i7-4558U CPU 2.80GHz
long/nullable int to string: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
long/nullable int to string wholestage off 60 60 0 1,7 600,3 1,0X
long/nullable int to string wholestage on 55 64 8 1,8 551,2 1,1X
Java HotSpot(TM) 64-Bit Server VM 1.8.0_152-b16 on Mac OS X 10.13.6
Intel(R) Core(TM) i7-4558U CPU 2.80GHz
long/nullable int to option: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
long/nullable int to option wholestage off 66 73 9 1,5 663,0 1,0X
long/nullable int to option wholestage on 30 32 2 3,3 300,7 2,2X
Java HotSpot(TM) 64-Bit Server VM 1.8.0_152-b16 on Mac OS X 10.13.6
Intel(R) Core(TM) i7-4558U CPU 2.80GHz
long/nullable int/string to primitive: Best Time(ms) Avg Time(ms) Stdev(ms) Rate(M/s) Per Row(ns) Relative
------------------------------------------------------------------------------------------------------------------------
long/nullable int/string to primitive wholestage off 32 35 5 3,2 316,7 1,0X
long/nullable int/string to primitive wholestage on 41 68 17 2,4 414,0 0,8X
```
The improvements are particularly visible in the second case, ie. when only primitive types are used as inputs.
Closes#24636 from mgaido91/SPARK-27684.
Authored-by: Marco Gaido <marcogaido91@gmail.com>
Signed-off-by: Josh Rosen <rosenville@gmail.com>
## What changes were proposed in this pull request?
Support DROP TABLE from V2 catalogs.
Move DROP TABLE into catalyst.
Move parsing tests for DROP TABLE/VIEW to PlanResolutionSuite to validate existing behavior.
Add new tests fo catalyst parser suite.
Separate DROP VIEW into different code path from DROP TABLE.
Move DROP VIEW into catalyst as a new operator.
Add a meaningful exception to indicate view is not currently supported in v2 catalog.
## How was this patch tested?
New unit tests.
Existing unit tests in catalyst and sql core.
Closes#24686 from jzhuge/SPARK-27813-pr.
Authored-by: John Zhuge <jzhuge@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
This pr wrap all `PrintWriter` with `Utils.tryWithResource` to prevent resource leak.
## How was this patch tested?
Existing test
Closes#24739 from wangyum/SPARK-27875.
Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Require the lookup function with interface LookupCatalog. Rationale is in the review comments below.
Make `Analyzer` abstract. BaseSessionStateBuilder and HiveSessionStateBuilder implements lookupCatalog with a call to SparkSession.catalog().
Existing test cases and those that don't need catalog lookup will use a newly added `TestAnalyzer` with a default lookup function that throws` CatalogNotFoundException("No catalog lookup function")`.
Rewrote the unit test for LookupCatalog to demonstrate the interface can be used anywhere, not just Analyzer.
Removed Analyzer parameter `lookupCatalog` because we can override in the following manner:
```
new Analyzer() {
override def lookupCatalog(name: String): CatalogPlugin = ???
}
```
## How was this patch tested?
Existing unit tests.
Closes#24689 from jzhuge/SPARK-26946-follow.
Authored-by: John Zhuge <jzhuge@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/22104 , we create the python-eval nodes at the end of the optimization phase, which causes a problem.
After the main optimization batch, Filter and Project nodes are usually pushed to the bottom, near the scan node. However, if we extract Python UDFs from Filter/Project, and create a python-eval node under Filter/Project, it will break column pruning/filter pushdown of the scan node.
There are some hacks in the `ExtractPythonUDFs` rule, to duplicate the column pruning and filter pushdown logic. However, it has some bugs as demonstrated in the new test case(only column pruning is broken). This PR removes the hacks and re-apply the column pruning and filter pushdown rules explicitly.
**Before:**
```
...
== Analyzed Logical Plan ==
a: bigint
Project [a#168L]
+- Filter dummyUDF(a#168L)
+- Relation[a#168L,b#169L] parquet
== Optimized Logical Plan ==
Project [a#168L]
+- Project [a#168L, b#169L]
+- Filter pythonUDF0#174: boolean
+- BatchEvalPython [dummyUDF(a#168L)], [a#168L, b#169L, pythonUDF0#174]
+- Relation[a#168L,b#169L] parquet
== Physical Plan ==
*(2) Project [a#168L]
+- *(2) Project [a#168L, b#169L]
+- *(2) Filter pythonUDF0#174: boolean
+- BatchEvalPython [dummyUDF(a#168L)], [a#168L, b#169L, pythonUDF0#174]
+- *(1) FileScan parquet [a#168L,b#169L] Batched: true, DataFilters: [], Format: Parquet, Location: InMemoryFileIndex[file:/private/var/folders/_1/bzcp960d0hlb988k90654z2w0000gp/T/spark-798bae3c-a2..., PartitionFilters: [], PushedFilters: [], ReadSchema: struct<a:bigint,b:bigint>
```
**After:**
```
...
== Analyzed Logical Plan ==
a: bigint
Project [a#168L]
+- Filter dummyUDF(a#168L)
+- Relation[a#168L,b#169L] parquet
== Optimized Logical Plan ==
Project [a#168L]
+- Filter pythonUDF0#174: boolean
+- BatchEvalPython [dummyUDF(a#168L)], [pythonUDF0#174]
+- Project [a#168L]
+- Relation[a#168L,b#169L] parquet
== Physical Plan ==
*(2) Project [a#168L]
+- *(2) Filter pythonUDF0#174: boolean
+- BatchEvalPython [dummyUDF(a#168L)], [pythonUDF0#174]
+- *(1) FileScan parquet [a#168L] Batched: true, DataFilters: [], Format: Parquet, Location: InMemoryFileIndex[file:/private/var/folders/_1/bzcp960d0hlb988k90654z2w0000gp/T/spark-9500cafb-78..., PartitionFilters: [], PushedFilters: [], ReadSchema: struct<a:bigint>
```
## How was this patch tested?
new test
Closes#24675 from cloud-fan/python.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
## What changes were proposed in this pull request?
Each time, when I write a complex CREATE DATABASE/VIEW statements, I have to open the .g4 file to find the EXACT order of clauses in CREATE TABLE statement. When the order is not right, I will get A strange confusing error message generated from ANTLR4.
The original g4 grammar for CREATE VIEW is
```
CREATE [OR REPLACE] [[GLOBAL] TEMPORARY] VIEW [db_name.]view_name
[(col_name1 [COMMENT col_comment1], ...)]
[COMMENT table_comment]
[TBLPROPERTIES (key1=val1, key2=val2, ...)]
AS select_statement
```
The proposal is to make the following clauses order insensitive.
```
[COMMENT table_comment]
[TBLPROPERTIES (key1=val1, key2=val2, ...)]
```
–
The original g4 grammar for CREATE DATABASE is
```
CREATE (DATABASE|SCHEMA) [IF NOT EXISTS] db_name
[COMMENT comment_text]
[LOCATION path]
[WITH DBPROPERTIES (key1=val1, key2=val2, ...)]
```
The proposal is to make the following clauses order insensitive.
```
[COMMENT comment_text]
[LOCATION path]
[WITH DBPROPERTIES (key1=val1, key2=val2, ...)]
```
## How was this patch tested?
By adding new unit tests to test duplicate clauses and modifying some existing unit tests to test whether those clauses are actually order insensitive
Closes#24681 from yeshengm/create-view-parser.
Authored-by: Yesheng Ma <kimi.ysma@gmail.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
This fix prevents the rule EliminateResolvedHint from being applied again if it's already applied.
## How was this patch tested?
Added new UT.
Closes#24692 from maryannxue/eliminatehint-bug.
Authored-by: maryannxue <maryannxue@apache.org>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
This adds a v2 implementation of create table:
* `CreateV2Table` is the logical plan, named using v2 to avoid conflicting with the existing plan
* `CreateTableExec` is the physical plan
## How was this patch tested?
Added resolution and v2 SQL tests.
Closes#24617 from rdblue/SPARK-27732-add-v2-create-table.
Authored-by: Ryan Blue <blue@apache.org>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
## What changes were proposed in this pull request?
Add type parameter to `TreeNodeTag`.
## How was this patch tested?
existing tests
Closes#24687 from cloud-fan/tag.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: gatorsmile <gatorsmile@gmail.com>
## What changes were proposed in this pull request?
When writing a query to data source v2, we have 2 modes to resolve the input query's output: byName or byPosition.
For byName mode, we would reorder the top level columns according to the name, and add type cast if possible. If the names don't match, we fail.
For byPosition mode, we don't do the reorder, and just add type cast directly if possible.
However, for struct type fields, we always apply byName mode. We should ignore the name difference if byPosition mode is used.
## How was this patch tested?
new tests
Closes#24678 from cloud-fan/write.
Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## What changes were proposed in this pull request?
Fix example for bitwise xor function. 3 ^ 5 should be 6 rather than 2.
- See https://spark.apache.org/docs/latest/api/sql/index.html#_14
## How was this patch tested?
manual tests
Closes#24669 from alex-lx/master.
Authored-by: Liu Xiao <hhdxlx@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
## 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?
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>
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 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?
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?
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?
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 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?
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?
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?
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?
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?
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?
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?
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?
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?
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?
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?
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?
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?
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?
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?
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?
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?
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 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?
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?
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?
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>
## 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?
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?
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?
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 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?
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?
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?
- 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?
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>
