Commit graph

26459 commits

Author SHA1 Message Date
Thomas Graves 496f6ac860 [SPARK-29148][CORE] Add stage level scheduling dynamic allocation and scheduler backend changes
### What changes were proposed in this pull request?

This is another PR for stage level scheduling. In particular this adds changes to the dynamic allocation manager and the scheduler backend to be able to track what executors are needed per ResourceProfile.  Note the api is still private to Spark until the entire feature gets in, so this functionality will be there but only usable by tests for profiles other then the DefaultProfile.

The main changes here are simply tracking things on a ResourceProfile basis as well as sending the executor requests to the scheduler backend for all ResourceProfiles.

I introduce a ResourceProfileManager in this PR that will track all the actual ResourceProfile objects so that we can keep them all in a single place and just pass around and use in datastructures the resource profile id. The resource profile id can be used with the ResourceProfileManager to get the actual ResourceProfile contents.

There are various places in the code that use executor "slots" for things.  The ResourceProfile adds functionality to keep that calculation in it.   This logic is more complex then it should due to standalone mode and mesos coarse grained not setting the executor cores config. They default to all cores on the worker, so calculating slots is harder there.
This PR keeps the functionality to make the cores the limiting resource because the scheduler still uses that for "slots" for a few things.

This PR does also add the resource profile id to the Stage and stage info classes to be able to test things easier.   That full set of changes will come with the scheduler PR that will be after this one.

The PR stops at the scheduler backend pieces for the cluster manager and the real YARN support hasn't been added in this PR, that again will be in a separate PR, so this has a few of the API changes up to the cluster manager and then just uses the default profile requests to continue.

The code for the entire feature is here for reference: https://github.com/apache/spark/pull/27053/files although it needs to be upmerged again as well.

### Why are the changes needed?

Needed for stage level scheduling feature.

### Does this PR introduce any user-facing change?

No user facing api changes added here.

### How was this patch tested?

Lots of unit tests and manually testing. I tested on yarn, k8s, standalone, local modes. Ran both failure and success cases.

Closes #27313 from tgravescs/SPARK-29148.

Authored-by: Thomas Graves <tgraves@nvidia.com>
Signed-off-by: Thomas Graves <tgraves@apache.org>
2020-02-12 16:45:42 -06:00
Liang-Chi Hsieh 5b76367a9d [SPARK-30797][SQL] Set tradition user/group/other permission to ACL entries when setting up ACLs in truncate table
### What changes were proposed in this pull request?

This is a follow-up to the PR #26956. In #26956, the patch proposed to preserve path permission when truncating table. When setting up original ACLs, we need to set user/group/other permission as ACL entries too, otherwise if the path doesn't have default user/group/other ACL entries, ACL API will complain an error `Invalid ACL: the user, group and other entries are required.`.

 In short this change makes sure:

1. Permissions for user/group/other are always kept into ACLs to work with ACL API.
2. Other custom ACLs are still kept after TRUNCATE TABLE (#26956 did this).

### Why are the changes needed?

Without this fix, `TRUNCATE TABLE` will get an error when setting up ACLs if there is no default default user/group/other ACL entries.

### Does this PR introduce any user-facing change?

No

### How was this patch tested?

Update unit test.

Manual test on dev Spark cluster.

Set ACLs for a table path without default user/group/other ACL entries:
```
hdfs dfs -setfacl --set 'user:liangchi:rwx,user::rwx,group::r--,other::r--' /user/hive/warehouse/test.db/test_truncate_table

hdfs dfs -getfacl /user/hive/warehouse/test.db/test_truncate_table
# file: /user/hive/warehouse/test.db/test_truncate_table
# owner: liangchi
# group: supergroup
user::rwx
user:liangchi:rwx
group::r--
mask::rwx
other::r--
```
Then run `sql("truncate table test.test_truncate_table")`, it works by normally truncating the table and preserve ACLs.

Closes #27548 from viirya/fix-truncate-table-permission.

Lead-authored-by: Liang-Chi Hsieh <liangchi@uber.com>
Co-authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2020-02-12 14:27:18 -08:00
Maxim Gekk aa0d13683c [SPARK-30760][SQL] Port millisToDays and daysToMillis on Java 8 time API
### What changes were proposed in this pull request?
In the PR, I propose to rewrite the `millisToDays` and `daysToMillis` of `DateTimeUtils` using Java 8 time API.

I removed `getOffsetFromLocalMillis` from `DateTimeUtils` because it is a private methods, and is not used anymore in Spark SQL.

### Why are the changes needed?
New implementation is based on Proleptic Gregorian calendar which has been already used by other date-time functions. This changes make `millisToDays` and `daysToMillis` consistent to rest Spark SQL API related to date & time operations.

### Does this PR introduce any user-facing change?
Yes, this might effect behavior for old dates before 1582 year.

### How was this patch tested?
By existing test suites `DateTimeUtilsSuite`, `DateFunctionsSuite`, DateExpressionsSuite`, `SQLQuerySuite` and `HiveResultSuite`.

Closes #27494 from MaxGekk/millis-2-days-java8-api.

Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-13 02:31:48 +08:00
Eric Wu 5919bd3b8d [SPARK-30651][SQL] Add detailed information for Aggregate operators in EXPLAIN FORMATTED
### What changes were proposed in this pull request?
Currently `EXPLAIN FORMATTED` only report input attributes of HashAggregate/ObjectHashAggregate/SortAggregate, while `EXPLAIN EXTENDED` provides more information of Keys, Functions, etc. This PR enhanced `EXPLAIN FORMATTED` to sync with original explain behavior.

### Why are the changes needed?
The newly added `EXPLAIN FORMATTED` got less information comparing to the original `EXPLAIN EXTENDED`

### Does this PR introduce any user-facing change?
Yes, taking HashAggregate explain result as example.

**SQL**
```
EXPLAIN FORMATTED
  SELECT
    COUNT(val) + SUM(key) as TOTAL,
    COUNT(key) FILTER (WHERE val > 1)
  FROM explain_temp1;
```

**EXPLAIN EXTENDED**
```
== Physical Plan ==
*(2) HashAggregate(keys=[], functions=[count(val#6), sum(cast(key#5 as bigint)), count(key#5)], output=[TOTAL#62L, count(key) FILTER (WHERE (val > 1))#71L])
+- Exchange SinglePartition, true, [id=#89]
   +- HashAggregate(keys=[], functions=[partial_count(val#6), partial_sum(cast(key#5 as bigint)), partial_count(key#5) FILTER (WHERE (val#6 > 1))], output=[count#75L, sum#76L, count#77L])
      +- *(1) ColumnarToRow
         +- FileScan parquet default.explain_temp1[key#5,val#6] Batched: true, DataFilters: [], Format: Parquet, Location: InMemoryFileIndex[file:/Users/XXX/spark-dev/spark/spark-warehouse/explain_temp1], PartitionFilters: [], PushedFilters: [], ReadSchema: struct<key:int,val:int>
```

**EXPLAIN FORMATTED - BEFORE**
```
== Physical Plan ==
* HashAggregate (5)
+- Exchange (4)
   +- HashAggregate (3)
      +- * ColumnarToRow (2)
         +- Scan parquet default.explain_temp1 (1)

...
...
(5) HashAggregate [codegen id : 2]
Input: [count#91L, sum#92L, count#93L]
...
...
```

**EXPLAIN FORMATTED - AFTER**
```
== Physical Plan ==
* HashAggregate (5)
+- Exchange (4)
   +- HashAggregate (3)
      +- * ColumnarToRow (2)
         +- Scan parquet default.explain_temp1 (1)

...
...
(5) HashAggregate [codegen id : 2]
Input: [count#91L, sum#92L, count#93L]
Keys: []
Functions: [count(val#6), sum(cast(key#5 as bigint)), count(key#5)]
Results: [(count(val#6)#84L + sum(cast(key#5 as bigint))#85L) AS TOTAL#78L, count(key#5)#86L AS count(key) FILTER (WHERE (val > 1))#87L]
Output: [TOTAL#78L, count(key) FILTER (WHERE (val > 1))#87L]
...
...
```

### How was this patch tested?
Three tests added in explain.sql for HashAggregate/ObjectHashAggregate/SortAggregate.

Closes #27368 from Eric5553/ExplainFormattedAgg.

Authored-by: Eric Wu <492960551@qq.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-13 02:00:23 +08:00
Maxim Gekk 61b1e608f0 [SPARK-30759][SQL][TESTS][FOLLOWUP] Check cache initialization in StringRegexExpression
### What changes were proposed in this pull request?
Added new test to `RegexpExpressionsSuite` which checks that `cache` of compiled pattern is set when the `right` expression (pattern in `LIKE`) is a foldable expression.

### Why are the changes needed?
To be sure that `cache` in `StringRegexExpression` is initialized for foldable patterns.

### Does this PR introduce any user-facing change?
No

### How was this patch tested?
By running the added test in `RegexpExpressionsSuite`.

Closes #27547 from MaxGekk/regexp-cache-test.

Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-12 23:50:34 +08:00
Maxim Gekk c1986204e5 [SPARK-30788][SQL] Support SimpleDateFormat and FastDateFormat as legacy date/timestamp formatters
### What changes were proposed in this pull request?
In the PR, I propose to add legacy date/timestamp formatters based on `SimpleDateFormat` and `FastDateFormat`:
- `LegacyFastTimestampFormatter` - uses `FastDateFormat` and supports parsing/formatting in microsecond precision. The code was borrowed from Spark 2.4, see https://github.com/apache/spark/pull/26507 & https://github.com/apache/spark/pull/26582
- `LegacySimpleTimestampFormatter` uses `SimpleDateFormat`, and support the `lenient` mode. When the `lenient` parameter is set to `false`, the parser become much stronger in checking its input.

### Why are the changes needed?
Spark 2.4.x uses the following parsers for parsing/formatting date/timestamp strings:
- `DateTimeFormat` in CSV/JSON datasource
- `SimpleDateFormat` - is used in JDBC datasource, in partitions parsing.
- `SimpleDateFormat` in strong mode (`lenient = false`), see https://github.com/apache/spark/blob/branch-2.4/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/util/DateTimeUtils.scala#L124. It is used by the `date_format`, `from_unixtime`, `unix_timestamp` and `to_unix_timestamp` functions.

The PR aims to make Spark 3.0 compatible with Spark 2.4.x in all those cases when `spark.sql.legacy.timeParser.enabled` is set to `true`.

### Does this PR introduce any user-facing change?
This shouldn't change behavior with default settings. If `spark.sql.legacy.timeParser.enabled` is set to `true`, users should observe behavior of Spark 2.4.

### How was this patch tested?
- Modified tests in `DateExpressionsSuite` to check the legacy parser - `SimpleDateFormat`.
- Added `CSVLegacyTimeParserSuite` and `JsonLegacyTimeParserSuite` to run `CSVSuite` and `JsonSuite` with the legacy parser - `FastDateFormat`.

Closes #27524 from MaxGekk/timestamp-formatter-legacy-fallback.

Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-12 20:12:38 +08:00
turbofei 8b1839728a [SPARK-29542][FOLLOW-UP] Keep the description of spark.sql.files.* in tuning guide be consistent with that in SQLConf
### What changes were proposed in this pull request?
This pr is a follow up of https://github.com/apache/spark/pull/26200.

In this PR, I modify the description of spark.sql.files.* in sql-performance-tuning.md to keep consistent with that in SQLConf.

### Why are the changes needed?

To keep consistent with the description in SQLConf.

### Does this PR introduce any user-facing change?
No.

### How was this patch tested?
Existed UT.

Closes #27545 from turboFei/SPARK-29542-follow-up.

Authored-by: turbofei <fwang12@ebay.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-02-12 20:21:52 +09:00
beliefer f5026b1ba7 [SPARK-30763][SQL] Fix java.lang.IndexOutOfBoundsException No group 1 for regexp_extract
### What changes were proposed in this pull request?
The current implement of `regexp_extract` will throws a unprocessed exception show below:

`SELECT regexp_extract('1a 2b 14m', 'd+')`
```
java.lang.IndexOutOfBoundsException: No group 1
[info] at java.util.regex.Matcher.group(Matcher.java:538)
[info] at org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIteratorForCodegenStage1.processNext(Unknown Source)
[info] at org.apache.spark.sql.execution.BufferedRowIterator.hasNext(BufferedRowIterator.java:43)
[info] at org.apache.spark.sql.execution.WholeStageCodegenExec$$anon$1.hasNext(WholeStageCodegenExec.scala:729)
```
I think should treat this exception well.

### Why are the changes needed?
Fix a bug `java.lang.IndexOutOfBoundsException No group 1 `

### Does this PR introduce any user-facing change?
Yes

### How was this patch tested?
New UT

Closes #27508 from beliefer/fix-regexp_extract-bug.

Authored-by: beliefer <beliefer@163.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-12 14:49:22 +08:00
Kris Mok b4769998ef [SPARK-30795][SQL] Spark SQL codegen's code() interpolator should treat escapes like Scala's StringContext.s()
### What changes were proposed in this pull request?

This PR proposes to make the `code` string interpolator treat escapes the same way as Scala's builtin `StringContext.s()` string interpolator. This will remove the need for an ugly workaround in `Like` expression's codegen.

### Why are the changes needed?

The `code()` string interpolator in Spark SQL's code generator should treat escapes like Scala's builtin `StringContext.s()` interpolator, i.e. it should treat escapes in the code parts, and should not treat escapes in the input arguments.

For example,
```scala
val arg = "This is an argument."
val str = s"This is string part 1. $arg This is string part 2."
val code = code"This is string part 1. $arg This is string part 2."
assert(code.toString == str)
```
We should expect the `code()` interpolator to produce the same result as the `StringContext.s()` interpolator, where only escapes in the string parts should be treated, while the args should be kept verbatim.

But in the current implementation, due to the eager folding of code parts and literal input args, the escape treatment is incorrectly done on both code parts and literal args.
That causes a problem when an arg contains escape sequences and wants to preserve that in the final produced code string. For example, in `Like` expression's codegen, there's an ugly workaround for this bug:
```scala
      // We need double escape to avoid org.codehaus.commons.compiler.CompileException.
      // '\\' will cause exception 'Single quote must be backslash-escaped in character literal'.
      // '\"' will cause exception 'Line break in literal not allowed'.
      val newEscapeChar = if (escapeChar == '\"' || escapeChar == '\\') {
        s"""\\\\\\$escapeChar"""
      } else {
        escapeChar
      }
```

### Does this PR introduce any user-facing change?

No.

### How was this patch tested?

Added a new unit test case in `CodeBlockSuite`.

Closes #27544 from rednaxelafx/fix-code-string-interpolator.

Authored-by: Kris Mok <kris.mok@databricks.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-02-12 15:19:16 +09:00
HyukjinKwon aa6a60530e [SPARK-30722][PYTHON][DOCS] Update documentation for Pandas UDF with Python type hints
### What changes were proposed in this pull request?

This PR targets to document the Pandas UDF redesign with type hints introduced at SPARK-28264.
Mostly self-describing; however, there are few things to note for reviewers.

1. This PR replace the existing documentation of pandas UDFs to the newer redesign to promote the Python type hints. I added some words that Spark 3.0 still keeps the compatibility though.

2. This PR proposes to name non-pandas UDFs as "Pandas Function API"

3. SCALAR_ITER become two separate sections to reduce confusion:
  - `Iterator[pd.Series]` -> `Iterator[pd.Series]`
  - `Iterator[Tuple[pd.Series, ...]]` -> `Iterator[pd.Series]`

4. I removed some examples that look overkill to me.

5. I also removed some information in the doc, that seems duplicating or too much.

### Why are the changes needed?

To document new redesign in pandas UDF.

### Does this PR introduce any user-facing change?

No.

### How was this patch tested?

Existing tests should cover.

Closes #27466 from HyukjinKwon/SPARK-30722.

Authored-by: HyukjinKwon <gurwls223@apache.org>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-02-12 10:49:46 +09:00
herman b25359cca3 [SPARK-30780][SQL] Empty LocalTableScan should use RDD without partitions
### What changes were proposed in this pull request?
This is a small follow-up for https://github.com/apache/spark/pull/27400. This PR makes an empty `LocalTableScanExec` return an `RDD` without partitions.

### Why are the changes needed?
It is a bit unexpected that the RDD contains partitions if there is not work to do. It also can save a bit of work when this is used in a more complex plan.

### Does this PR introduce any user-facing change?
No

### How was this patch tested?
Added test to `SparkPlanSuite`.

Closes #27530 from hvanhovell/SPARK-30780.

Authored-by: herman <herman@databricks.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-02-12 10:48:29 +09:00
Maxim Gekk 45db48e2d2 Revert "[SPARK-30625][SQL] Support escape as third parameter of the like function
### What changes were proposed in this pull request?

In the PR, I propose to revert the commit 8aebc80e0e.

### Why are the changes needed?
See the concerns https://github.com/apache/spark/pull/27355#issuecomment-584344438

### Does this PR introduce any user-facing change?
No

### How was this patch tested?
By existing test suites.

Closes #27531 from MaxGekk/revert-like-3-args.

Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2020-02-11 10:15:34 -08:00
HyukjinKwon 99bd59fe29 [SPARK-29462][SQL][DOCS] Add some more context and details in 'spark.sql.defaultUrlStreamHandlerFactory.enabled' documentation
### What changes were proposed in this pull request?

This PR adds some more information and context to `spark.sql.defaultUrlStreamHandlerFactory.enabled`.

### Why are the changes needed?

It is a bit difficult to understand the documentation of `spark.sql.defaultUrlStreamHandlerFactory.enabled`.

### Does this PR introduce any user-facing change?

Nope, internal doc only fix.

### How was this patch tested?

Nope. I only tested linter.

Closes #27541 from HyukjinKwon/SPARK-29462-followup.

Authored-by: HyukjinKwon <gurwls223@apache.org>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2020-02-11 09:55:02 -08:00
Yin Huai ea626b6acf [SPARK-30783] Exclude hive-service-rpc
### What changes were proposed in this pull request?
Exclude hive-service-rpc from build.

### Why are the changes needed?
hive-service-rpc 2.3.6 and spark sql's thrift server module have duplicate classes. Leaving hive-service-rpc 2.3.6 in the class path means that spark can pick up classes defined in hive instead of its thrift server module, which can cause hard to debug runtime errors due to class loading order and compilation errors for applications depend on spark.

 If you compare hive-service-rpc 2.3.6's jar (https://search.maven.org/remotecontent?filepath=org/apache/hive/hive-service-rpc/2.3.6/hive-service-rpc-2.3.6.jar) and spark thrift server's jar (e.g. https://repository.apache.org/content/groups/snapshots/org/apache/spark/spark-hive-thriftserver_2.12/3.0.0-SNAPSHOT/spark-hive-thriftserver_2.12-3.0.0-20200207.021914-364.jar), you will see that all of classes provided by hive-service-rpc-2.3.6.jar are covered by spark thrift server's jar. https://issues.apache.org/jira/browse/SPARK-30783 has output of jar tf for both jars.

### Does this PR introduce any user-facing change?
No

### How was this patch tested?
Existing tests.

Closes #27533 from yhuai/SPARK-30783.

Authored-by: Yin Huai <yhuai@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-12 00:12:45 +08:00
Maxim Gekk dc66d57e98 [SPARK-30754][SQL] Reuse results of floorDiv in calculations of floorMod in DateTimeUtils
### What changes were proposed in this pull request?
In the case of back-to-back calculation of `floorDiv` and `floorMod` with the same arguments, the result of `foorDiv` can be reused in calculation of `floorMod`. The `floorMod` method is defined as the following in Java standard library:
```java
    public static int floorMod(int x, int y) {
        int r = x - floorDiv(x, y) * y;
        return r;
    }
```
If `floorDiv(x, y)` has been already calculated, it can be reused in `x - floorDiv(x, y) * y`.

I propose to modify 2 places in `DateTimeUtils`:
1. `microsToInstant` which is widely used in many date-time functions. `Math.floorMod(us, MICROS_PER_SECOND)` is just replaced by its definition from Java Math library.
2. `truncDate`: `Math.floorMod(oldYear, divider) == 0` is replaced by `Math.floorDiv(oldYear, divider) * divider == oldYear` where `floorDiv(...) * divider` is pre-calculated.

### Why are the changes needed?
This reduces the number of arithmetic operations, and can slightly improve performance of date-time functions.

### Does this PR introduce any user-facing change?
No

### How was this patch tested?
By existing test suites `DateTimeUtilsSuite`, `DateFunctionsSuite` and `DateExpressionsSuite`.

Closes #27491 from MaxGekk/opt-microsToInstant.

Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Sean Owen <srowen@gmail.com>
2020-02-11 09:07:40 -06:00
fuwhu f1d0dce484 [MINOR][DOC] Add class document for PruneFileSourcePartitions and PruneHiveTablePartitions
### What changes were proposed in this pull request?
Add class document for PruneFileSourcePartitions and PruneHiveTablePartitions.

### Why are the changes needed?
To describe these two classes.

### Does this PR introduce any user-facing change?
no

### How was this patch tested?
no

Closes #27535 from fuwhu/SPARK-15616-FOLLOW-UP.

Authored-by: fuwhu <bestwwg@163.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-11 22:16:44 +08:00
root1 b20754d9ee [SPARK-27545][SQL][DOC] Update the Documentation for CACHE TABLE and UNCACHE TABLE
### What changes were proposed in this pull request?
Document updated for `CACHE TABLE` & `UNCACHE TABLE`

### Why are the changes needed?
Cache table creates a temp view while caching data using `CACHE TABLE name AS query`. `UNCACHE TABLE` does not remove this temp view.

These things were not mentioned in the existing doc for `CACHE TABLE` & `UNCACHE TABLE`.

### Does this PR introduce any user-facing change?
Document updated for `CACHE TABLE` & `UNCACHE TABLE` command.

### How was this patch tested?
Manually

Closes #27090 from iRakson/SPARK-27545.

Lead-authored-by: root1 <raksonrakesh@gmail.com>
Co-authored-by: iRakson <raksonrakesh@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-11 20:42:02 +08:00
HyukjinKwon 0045be766b [SPARK-29462][SQL] The data type of "array()" should be array<null>
### What changes were proposed in this pull request?

This brings https://github.com/apache/spark/pull/26324 back. It was reverted basically because, firstly Hive compatibility, and the lack of investigations in other DBMSes and ANSI.

- In case of PostgreSQL seems coercing NULL literal to TEXT type.
- Presto seems coercing `array() + array(1)` -> array of int.
- Hive seems  `array() + array(1)` -> array of strings

 Given that, the design choices have been differently made for some reasons. If we pick one of both, seems coercing to array of int makes much more sense.

Another investigation was made offline internally. Seems ANSI SQL 2011, section 6.5 "<contextually typed value specification>" states:

> If ES is specified, then let ET be the element type determined by the context in which ES appears. The declared type DT of ES is Case:
>
> a) If ES simply contains ARRAY, then ET ARRAY[0].
>
> b) If ES simply contains MULTISET, then ET MULTISET.
>
> ES is effectively replaced by CAST ( ES AS DT )

From reading other related context, doing it to `NullType`. Given the investigation made, choosing to `null` seems correct, and we have a reference Presto now. Therefore, this PR proposes to bring it back.

### Why are the changes needed?
When empty array is created, it should be declared as array<null>.

### Does this PR introduce any user-facing change?
Yes, `array()` creates `array<null>`. Now `array(1) + array()` can correctly create `array(1)` instead of `array("1")`.

### How was this patch tested?
Tested manually

Closes #27521 from HyukjinKwon/SPARK-29462.

Lead-authored-by: HyukjinKwon <gurwls223@apache.org>
Co-authored-by: Aman Omer <amanomer1996@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-02-11 17:22:08 +09:00
HyukjinKwon 2bc765a831 [SPARK-30756][SQL] Fix ThriftServerWithSparkContextSuite on spark-branch-3.0-test-sbt-hadoop-2.7-hive-2.3
### What changes were proposed in this pull request?

This PR tries #26710 (comment) way to fix the test.

### Why are the changes needed?

To make the tests pass.

### Does this PR introduce any user-facing change?

No.

### How was this patch tested?

Jenkins will test first, and then `on spark-branch-3.0-test-sbt-hadoop-2.7-hive-2.3` will test it out.

Closes #27513 from HyukjinKwon/test-SPARK-30756.

Authored-by: HyukjinKwon <gurwls223@apache.org>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
(cherry picked from commit 8efe367a4e)
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-02-11 15:50:16 +09:00
Bryan Cutler 07a9885f27 [SPARK-30777][PYTHON][TESTS] Fix test failures for Pandas >= 1.0.0
### What changes were proposed in this pull request?

Fix PySpark test failures for using Pandas >= 1.0.0.

### Why are the changes needed?

Pandas 1.0.0 has recently been released and has API changes that result in PySpark test failures, this PR fixes the broken tests.

### Does this PR introduce any user-facing change?

No

### How was this patch tested?

Manually tested with Pandas 1.0.1 and PyArrow 0.16.0

Closes #27529 from BryanCutler/pandas-fix-tests-1.0-SPARK-30777.

Authored-by: Bryan Cutler <cutlerb@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-02-11 10:03:01 +09:00
Shixiong Zhu e2ebca733c [SPARK-30779][SS] Fix some API issues found when reviewing Structured Streaming API docs
### What changes were proposed in this pull request?

- Fix the scope of `Logging.initializeForcefully` so that it doesn't appear in subclasses' public methods. Right now, `sc.initializeForcefully(false, false)` is allowed to called.
- Don't show classes under `org.apache.spark.internal` package in API docs.
- Add missing `since` annotation.
- Fix the scope of `ArrowUtils` to remove it from the API docs.

### Why are the changes needed?

Avoid leaking APIs unintentionally in Spark 3.0.0.

### Does this PR introduce any user-facing change?

No. All these changes are to avoid leaking APIs unintentionally in Spark 3.0.0.

### How was this patch tested?

Manually generated the API docs and verified the above issues have been fixed.

Closes #27528 from zsxwing/audit-ss-apis.

Authored-by: Shixiong Zhu <zsxwing@gmail.com>
Signed-off-by: Xiao Li <gatorsmile@gmail.com>
2020-02-10 14:26:14 -08:00
Yuanjian Li a6b91d2bf7 [SPARK-30556][SQL][FOLLOWUP] Reset the status changed in SQLExecution.withThreadLocalCaptured
### What changes were proposed in this pull request?
Follow up for #27267, reset the status changed in SQLExecution.withThreadLocalCaptured.

### Why are the changes needed?
For code safety.

### Does this PR introduce any user-facing change?
No.

### How was this patch tested?
Existing UT.

Closes #27516 from xuanyuanking/SPARK-30556-follow.

Authored-by: Yuanjian Li <xyliyuanjian@gmail.com>
Signed-off-by: herman <herman@databricks.com>
2020-02-10 22:16:25 +01:00
Maxim Gekk 3c1c9b48fc [SPARK-30759][SQL] Initialize cache for foldable patterns in StringRegexExpression
### What changes were proposed in this pull request?
In the PR, I propose to fix `cache` initialization in `StringRegexExpression` by changing `case Literal(value: String, StringType)` to `case p: Expression if p.foldable`

### Why are the changes needed?
Actually, the case doesn't work at all because of:
1. Literals value has type `UTF8String`
2. It doesn't work for foldable expressions like in the example:
```sql
SELECT '%SystemDrive%\Users\John' _FUNC_ '%SystemDrive%\\Users.*';
```
<img width="649" alt="Screen Shot 2020-02-08 at 22 45 50" src="https://user-images.githubusercontent.com/1580697/74091681-0d4a2180-4acb-11ea-8a0d-7e8c65f4214e.png">

### Does this PR introduce any user-facing change?
No

### How was this patch tested?
By the `check outputs of expression examples` test from `SQLQuerySuite`.

Closes #27502 from MaxGekk/str-regexp-foldable-pattern.

Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2020-02-10 12:51:37 -08:00
HyukjinKwon 4439b29bd2 Revert "[SPARK-30245][SQL] Add cache for Like and RLike when pattern is not static"
### What changes were proposed in this pull request?

This reverts commit 8ce7962931. There's variable name conflicts with 8aebc80e0e (diff-39298b470865a4cbc67398a4ea11e767).

This can be cleanly ported back to branch-3.0.

### Why are the changes needed?
Performance investigation were not made enough and it's not clear if it really beneficial or now.

### Does this PR introduce any user-facing change?
No.

### How was this patch tested?
Jenkins tests.

Closes #27514 from HyukjinKwon/revert-cache-PR.

Authored-by: HyukjinKwon <gurwls223@apache.org>
Signed-off-by: Xiao Li <gatorsmile@gmail.com>
2020-02-10 10:56:43 -08:00
Liang-Chi Hsieh acfdb46a60 [SPARK-27946][SQL][FOLLOW-UP] Change doc and error message for SHOW CREATE TABLE
### What changes were proposed in this pull request?

This is a follow-up for #24938 to tweak error message and migration doc.

### Why are the changes needed?

Making user know workaround if SHOW CREATE TABLE doesn't work for some Hive tables.

### Does this PR introduce any user-facing change?

No

### How was this patch tested?

Existing unit tests.

Closes #27505 from viirya/SPARK-27946-followup.

Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Liang-Chi Hsieh <liangchi@uber.com>
2020-02-10 10:45:00 -08:00
Eric Wu b2011a295b [SPARK-30326][SQL] Raise exception if analyzer exceed max iterations
### What changes were proposed in this pull request?
Enhance RuleExecutor strategy to take different actions when exceeding max iterations. And raise exception if analyzer exceed max iterations.

### Why are the changes needed?
Currently, both analyzer and optimizer just log warning message if rule execution exceed max iterations. They should have different behavior. Analyzer should raise exception to indicates the plan is not fixed after max iterations, while optimizer just log warning to keep the current plan. This is more feasible after SPARK-30138 was introduced.

### Does this PR introduce any user-facing change?
No

### How was this patch tested?
Add test in AnalysisSuite

Closes #26977 from Eric5553/EnhanceMaxIterations.

Authored-by: Eric Wu <492960551@qq.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-10 23:41:39 +08:00
jiake 5a240603fd [SPARK-30719][SQL] Add unit test to verify the log warning print when intentionally skip AQE
### What changes were proposed in this pull request?

This is a follow up in [#27452](https://github.com/apache/spark/pull/27452).
Add a unit test to verify whether the log warning is print when intentionally skip AQE.

### Why are the changes needed?

Add unit test

### Does this PR introduce any user-facing change?

No

### How was this patch tested?

adding unit test

Closes #27515 from JkSelf/aqeLoggingWarningTest.

Authored-by: jiake <ke.a.jia@intel.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-10 21:48:00 +08:00
Terry Kim 70e545a94d [SPARK-30757][SQL][DOC] Update the doc on TableCatalog.alterTable's behavior
### What changes were proposed in this pull request?

This PR updates the documentation on `TableCatalog.alterTable`s behavior on the order by which the requested changes are applied. It now explicitly mentions that the changes are applied in the order given.

### Why are the changes needed?

The current documentation on `TableCatalog.alterTable` doesn't mention which order the requested changes are applied. It will be useful to explicitly document this behavior so that the user can expect the behavior. For example, `REPLACE COLUMNS` needs to delete columns before adding new columns, and if the order is guaranteed by `alterTable`, it's much easier to work with the catalog API.

### Does this PR introduce any user-facing change?

Yes, document change.

### How was this patch tested?

Not added (doc changes).

Closes #27496 from imback82/catalog_table_alter_table.

Authored-by: Terry Kim <yuminkim@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-10 19:04:49 +08:00
Kent Yao 58b9ca1e6f [SPARK-30592][SQL][FOLLOWUP] Add some round-trip test cases
### What changes were proposed in this pull request?

Add round-trip tests for CSV and JSON functions as  https://github.com/apache/spark/pull/27317#discussion_r376745135 asked.

### Why are the changes needed?

improve test coverage

### Does this PR introduce any user-facing change?

no
### How was this patch tested?

add uts

Closes #27510 from yaooqinn/SPARK-30592-F.

Authored-by: Kent Yao <yaooqinn@hotmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-02-10 16:23:44 +09:00
Liang-Chi Hsieh 9f8172e96a Revert "[SPARK-29721][SQL] Prune unnecessary nested fields from Generate without Project
This reverts commit a0e63b61e7.

### What changes were proposed in this pull request?

This reverts the patch at #26978 based on gatorsmile's suggestion.

### Why are the changes needed?

Original patch #26978 has not considered a corner case. We may need to put more time on ensuring we can cover all cases.

### Does this PR introduce any user-facing change?

No

### How was this patch tested?

Unit test.

Closes #27504 from viirya/revert-SPARK-29721.

Authored-by: Liang-Chi Hsieh <viirya@gmail.com>
Signed-off-by: Xiao Li <gatorsmile@gmail.com>
2020-02-09 19:45:16 -08:00
Gengliang Wang b877aac146 [SPARK-30684 ][WEBUI][FollowUp] A new approach for SPARK-30684
### What changes were proposed in this pull request?

Simplify the changes for adding metrics description for WholeStageCodegen in https://github.com/apache/spark/pull/27405

### Why are the changes needed?

In https://github.com/apache/spark/pull/27405, the UI changes can be made without using the function `adjustPositionOfOperationName` to adjust the position of operation name and mark as an operation-name class.

I suggest we make simpler changes so that it would be easier for future development.

### Does this PR introduce any user-facing change?

No

### How was this patch tested?

Manual test with the queries provided in https://github.com/apache/spark/pull/27405
```
sc.parallelize(1 to 10).toDF.sort("value").filter("value > 1").selectExpr("value * 2").show
sc.parallelize(1 to 10).toDF.sort("value").filter("value > 1").selectExpr("value * 2").write.format("json").mode("overwrite").save("/tmp/test_output")
sc.parallelize(1 to 10).toDF.write.format("json").mode("append").save("/tmp/test_output")
```
![image](https://user-images.githubusercontent.com/1097932/74073629-e3f09f00-49bf-11ea-90dc-1edb5ca29e5e.png)

Closes #27490 from gengliangwang/wholeCodegenUI.

Authored-by: Gengliang Wang <gengliang.wang@databricks.com>
Signed-off-by: Gengliang Wang <gengliang.wang@databricks.com>
2020-02-09 14:18:51 -08:00
Nicholas Chammas 339c0f9a62 [SPARK-30510][SQL][DOCS] Publicly document Spark SQL configuration options
### What changes were proposed in this pull request?

This PR adds a doc builder for Spark SQL's configuration options.

Here's what the new Spark SQL config docs look like ([configuration.html.zip](https://github.com/apache/spark/files/4172109/configuration.html.zip)):

![Screen Shot 2020-02-07 at 12 13 23 PM](https://user-images.githubusercontent.com/1039369/74050007-425b5480-49a3-11ea-818c-42700c54d1fb.png)

Compare this to the [current docs](http://spark.apache.org/docs/3.0.0-preview2/configuration.html#spark-sql):

![Screen Shot 2020-02-04 at 4 55 10 PM](https://user-images.githubusercontent.com/1039369/73790828-24a5a980-476f-11ea-998c-12cd613883e8.png)

### Why are the changes needed?

There is no visibility into the various Spark SQL configs on [the config docs page](http://spark.apache.org/docs/3.0.0-preview2/configuration.html#spark-sql).

### Does this PR introduce any user-facing change?

No, apart from new documentation.

### How was this patch tested?

I tested this manually by building the docs and reviewing them in my browser.

Closes #27459 from nchammas/SPARK-30510-spark-sql-options.

Authored-by: Nicholas Chammas <nicholas.chammas@liveramp.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-02-09 19:20:47 +09:00
Huaxin Gao a7ae77a8d8 [SPARK-30662][ML][PYSPARK] Put back the API changes for HasBlockSize in ALS/MLP
### What changes were proposed in this pull request?
Add ```HasBlockSize``` in shared Params in both Scala and Python.
Make ALS/MLP extend ```HasBlockSize```

### Why are the changes needed?
Add ```HasBlockSize ``` in ALS, so user can specify the blockSize.
Make ```HasBlockSize``` a shared param so both ALS and MLP can use it.

### Does this PR introduce any user-facing change?
Yes
```ALS.setBlockSize/getBlockSize```
```ALSModel.setBlockSize/getBlockSize```

### How was this patch tested?
Manually tested. Also added doctest.

Closes #27501 from huaxingao/spark_30662.

Authored-by: Huaxin Gao <huaxing@us.ibm.com>
Signed-off-by: zhengruifeng <ruifengz@foxmail.com>
2020-02-09 13:14:30 +08:00
Yuanjian Li e1cd4d9dc2 [SPARK-29587][DOC][FOLLOWUP] Add SQL tab in the Data Types page
### What changes were proposed in this pull request?
Add the new tab `SQL` in the `Data Types` page.

### Why are the changes needed?
New type added in SPARK-29587.

### Does this PR introduce any user-facing change?
No.

### How was this patch tested?
Locally test by Jekyll.
![image](https://user-images.githubusercontent.com/4833765/73908593-2e511d80-48e5-11ea-85a7-6ee451e6b727.png)

Closes #27447 from xuanyuanking/SPARK-29587-follow.

Authored-by: Yuanjian Li <xyliyuanjian@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2020-02-08 14:28:15 -08:00
Yuanjian Li 3db3e39f11 [SPARK-28228][SQL] Change the default behavior for name conflict in nested WITH clause
### What changes were proposed in this pull request?
This is a follow-up for #25029, in this PR we throw an AnalysisException when name conflict is detected in nested WITH clause. In this way, the config `spark.sql.legacy.ctePrecedence.enabled` should be set explicitly for the expected behavior.

### Why are the changes needed?
The original change might risky to end-users, it changes behavior silently.

### Does this PR introduce any user-facing change?
Yes, change the config `spark.sql.legacy.ctePrecedence.enabled` as optional.

### How was this patch tested?
New UT.

Closes #27454 from xuanyuanking/SPARK-28228-follow.

Authored-by: Yuanjian Li <xyliyuanjian@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2020-02-08 14:10:28 -08:00
zhengruifeng 12e1bbaddb Revert "[SPARK-30642][SPARK-30659][SPARK-30660][SPARK-30662]"
### What changes were proposed in this pull request?
Revert
#27360
#27396
#27374
#27389

### Why are the changes needed?
BLAS need more performace tests, specially on sparse datasets.
Perfermance test of LogisticRegression (https://github.com/apache/spark/pull/27374) on sparse dataset shows that blockify vectors to matrices and use BLAS will cause performance regression.
LinearSVC and LinearRegression were also updated in the same way as LogisticRegression, so we need to revert them to make sure no regression.

### Does this PR introduce any user-facing change?
remove newly added param blockSize

### How was this patch tested?
reverted testsuites

Closes #27487 from zhengruifeng/revert_blockify_ii.

Authored-by: zhengruifeng <ruifengz@foxmail.com>
Signed-off-by: zhengruifeng <ruifengz@foxmail.com>
2020-02-08 08:46:16 +08:00
Terry Kim a7451f44d2 [SPARK-30614][SQL] The native ALTER COLUMN syntax should change one property at a time
### What changes were proposed in this pull request?

The current ALTER COLUMN syntax allows to change multiple properties at a time:
```
ALTER TABLE table=multipartIdentifier
  (ALTER | CHANGE) COLUMN? column=multipartIdentifier
  (TYPE dataType)?
  (COMMENT comment=STRING)?
  colPosition?
```
The SQL standard (section 11.12) only allows changing one property at a time. This is also true on other recent SQL systems like [snowflake](https://docs.snowflake.net/manuals/sql-reference/sql/alter-table-column.html) and [redshift](https://docs.aws.amazon.com/redshift/latest/dg/r_ALTER_TABLE.html). (credit to cloud-fan)

This PR proposes to change ALTER COLUMN to follow SQL standard, thus allows altering only one column property at a time.

Note that ALTER COLUMN syntax being changed here is newly added in Spark 3.0, so it doesn't affect Spark 2.4 behavior.

### Why are the changes needed?

To follow SQL standard (and other recent SQL systems) behavior.

### Does this PR introduce any user-facing change?

Yes, now the user can update the column properties only one at a time.

For example,
```
ALTER TABLE table1 ALTER COLUMN a.b.c TYPE bigint COMMENT 'new comment'
```
should be broken into
```
ALTER TABLE table1 ALTER COLUMN a.b.c TYPE bigint
ALTER TABLE table1 ALTER COLUMN a.b.c COMMENT 'new comment'
```

### How was this patch tested?

Updated existing tests.

Closes #27444 from imback82/alter_column_one_at_a_time.

Authored-by: Terry Kim <yuminkim@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-08 02:47:44 +08:00
Maxim Gekk a3e77773cf [SPARK-30752][SQL] Fix to_utc_timestamp on daylight saving day
### What changes were proposed in this pull request?
- Rewrite the `convertTz` method of `DateTimeUtils` using Java 8 time API
- Change types of `convertTz` parameters from `TimeZone` to `ZoneId`. This allows to avoid unnecessary conversions `TimeZone` -> `ZoneId` and performance regressions as a consequence.

### Why are the changes needed?
- Fixes incorrect behavior of `to_utc_timestamp` on daylight saving day. For example:
```scala
scala> df.select(to_utc_timestamp(lit("2019-11-03T12:00:00"), "Asia/Hong_Kong").as("local UTC")).show
+-------------------+
|          local UTC|
+-------------------+
|2019-11-03 03:00:00|
+-------------------+
```
but the result must be 2019-11-03 04:00:00:
<img width="1013" alt="Screen Shot 2020-02-06 at 20 09 36" src="https://user-images.githubusercontent.com/1580697/73960846-a129bb00-491c-11ea-92f5-45831cb28a62.png">

- Simplifies the code, and make it more maintainable
- Switches `convertTz` on Proleptic Gregorian calendar used by Java 8 time classes by default. That makes the function consistent to other date-time functions.

### Does this PR introduce any user-facing change?
Yes, after the changes `to_utc_timestamp` returns the correct result `2019-11-03 04:00:00`.

### How was this patch tested?
- By existing test suite `DateTimeUtilsSuite`, `DateFunctionsSuite` and `DateExpressionsSuite`.
- Added `convert time zones on a daylight saving day` to DateFunctionsSuite

Closes #27474 from MaxGekk/port-convertTz-on-Java8-api.

Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-08 02:32:07 +08:00
sharif ahmad dd2f4431f5 [MINOR][DOCS] Fix typos at python/pyspark/sql/types.py
### What changes were proposed in this pull request?

This PR fixes some typos in `python/pyspark/sql/types.py` file.

### Why are the changes needed?

To deliver correct wording in documentation and codes.

### Does this PR introduce any user-facing change?

Yes, it fixes some typos in user-facing API documentation.

### How was this patch tested?

Locally tested the linter.

Closes #27475 from sharifahmad2061/master.

Lead-authored-by: sharif ahmad <sharifahmad2061@gmail.com>
Co-authored-by: Sharif ahmad <sharifahmad2061@users.noreply.github.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-02-07 18:42:16 +09:00
Yuanjian Li 4804445327 [MINOR][DOC] Fix document UI left menu broken
### What changes were proposed in this pull request?
Fix the left menu broken introduced in #25459.

### Why are the changes needed?
The `left-menu-wrapper` CSS reused for both ml-guide and sql-programming-guide, the before changes will break the UI.

Before:
![image](https://user-images.githubusercontent.com/4833765/73952563-1061d800-493a-11ea-8a75-d802a1534a44.png)
![image](https://user-images.githubusercontent.com/4833765/73952584-18217c80-493a-11ea-85a3-ce5f9875545f.png)
![image](https://user-images.githubusercontent.com/4833765/73952605-21124e00-493a-11ea-8d79-24f4dfec73d9.png)

After:
![image](https://user-images.githubusercontent.com/4833765/73952630-2a031f80-493a-11ea-80ff-4630801cfaf4.png)
![image](https://user-images.githubusercontent.com/4833765/73952652-30919700-493a-11ea-9db1-8bb4a3f913b4.png)
![image](https://user-images.githubusercontent.com/4833765/73952671-35eee180-493a-11ea-801b-d50c4397adf2.png)

### Does this PR introduce any user-facing change?
Document UI change only.

### How was this patch tested?
Local test, screenshot attached below.

Closes #27479 from xuanyuanking/doc-ui.

Authored-by: Yuanjian Li <xyliyuanjian@gmail.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2020-02-06 14:58:53 -08:00
Wenchen Fan 5a4c70b4e2 [SPARK-27986][SQL][FOLLOWUP] window aggregate function with filter predicate is not supported
### What changes were proposed in this pull request?

This is a followup of https://github.com/apache/spark/pull/26656.

We don't support window aggregate function with filter predicate yet and we should fail explicitly.

Observable metrics has the same issue. This PR fixes it as well.

### Why are the changes needed?

If we simply ignore filter predicate when we don't support it, the result is wrong.

### Does this PR introduce any user-facing change?

yea, fix the query result.

### How was this patch tested?

new tests

Closes #27476 from cloud-fan/filter.

Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2020-02-06 13:33:39 -08:00
Wenchen Fan 8ce58627eb [SPARK-30719][SQL] do not log warning if AQE is intentionally skipped and add a config to force apply
### What changes were proposed in this pull request?

Update `InsertAdaptiveSparkPlan` to not log warning if AQE is skipped intentionally.

This PR also add a config to not skip AQE.

### Why are the changes needed?

It's not a warning at all if we intentionally skip AQE.

### Does this PR introduce any user-facing change?

no

### How was this patch tested?

run `AdaptiveQueryExecSuite` locally and verify that there is no warning logs.

Closes #27452 from cloud-fan/aqe.

Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Xiao Li <gatorsmile@gmail.com>
2020-02-06 09:16:14 -08:00
Yuanjian Li d8613571bc [SPARK-26700][CORE][FOLLOWUP] Add config spark.network.maxRemoteBlockSizeFetchToMem
### What changes were proposed in this pull request?
Add new config `spark.network.maxRemoteBlockSizeFetchToMem` fallback to the old config `spark.maxRemoteBlockSizeFetchToMem`.

### Why are the changes needed?
For naming consistency.

### Does this PR introduce any user-facing change?
No.

### How was this patch tested?
Existing tests.

Closes #27463 from xuanyuanking/SPARK-26700-follow.

Authored-by: Yuanjian Li <xyliyuanjian@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-06 20:53:44 +08:00
yi.wu 368ee62a5d [SPARK-27297][DOC][FOLLOW-UP] Improve documentation for various Scala functions
### What changes were proposed in this pull request?

Add examples and parameter description for these Scala functions:

* transform
* exists
* forall
* aggregate
* zip_with
* transform_keys
* transform_values
* map_filter
* map_zip_with

### Why are the changes needed?

Better documentation for UX.

### Does this PR introduce any user-facing change?

No.

### How was this patch tested?

Pass Jenkins.

Closes #27449 from Ngone51/doc-funcs.

Authored-by: yi.wu <yi.wu@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-06 20:34:29 +08:00
yi.wu 3f5b23340e [SPARK-30744][SQL] Optimize AnalyzePartitionCommand by calculating location sizes in parallel
### What changes were proposed in this pull request?

Use `CommandUtils.calculateTotalLocationSize` for `AnalyzePartitionCommand` in order to calculate location sizes in parallel.

### Why are the changes needed?

For better performance.

### Does this PR introduce any user-facing change?

No.

### How was this patch tested?

Pass Jenkins.

Closes #27471 from Ngone51/dev_calculate_in_parallel.

Authored-by: yi.wu <yi.wu@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-06 20:20:44 +08:00
beliefer c8ef1dee90 [SPARK-29108][SQL][TESTS][FOLLOWUP] Comment out no use test case and add 'insert into' statement of window.sql (Part 2)
### What changes were proposed in this pull request?
When I running the `window_part2.sql` tests find it lack insert sql. Therefore, the output is empty.
I checked the postgresql and reference https://github.com/postgres/postgres/blob/master/src/test/regress/sql/window.sql
Although `window_part1.sql` and `window_part3.sql` exists the insert sql, I think should also add it into `window_part2.sql`.
Because only one case reference the table `empsalary` and it throws `AnalysisException`.
```
-- !query
select last(salary) over(order by salary range between 1000 preceding and 1000 following),
lag(salary) over(order by salary range between 1000 preceding and 1000 following),
salary from empsalary
-- !query schema
struct<>
-- !query output
org.apache.spark.sql.AnalysisException
Window Frame specifiedwindowframe(RangeFrame, -1000, 1000) must match the required frame specifiedwindowframe(RowFrame, -1, -1);
```

So we should do four work:
1. comment out the only one case and create a new ticket.
2. Add `INSERT INTO empsalary`.

Note: window_part4.sql not use the table `empsalary`.

### Why are the changes needed?
Supplementary test data.

### Does this PR introduce any user-facing change?
No

### How was this patch tested?
New test case

Closes #27439 from beliefer/add-insert-to-window.

Authored-by: beliefer <beliefer@163.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-02-06 15:24:26 +09:00
Terry Kim c27a616450 [SPARK-30612][SQL] Resolve qualified column name with v2 tables
### What changes were proposed in this pull request?

This PR fixes the issue where queries with qualified columns like `SELECT t.a FROM t` would fail to resolve for v2 tables.

This PR would allow qualified column names in query as following:
```SQL
SELECT testcat.ns1.ns2.tbl.foo FROM testcat.ns1.ns2.tbl
SELECT ns1.ns2.tbl.foo FROM testcat.ns1.ns2.tbl
SELECT ns2.tbl.foo FROM testcat.ns1.ns2.tbl
SELECT tbl.foo FROM testcat.ns1.ns2.tbl
```

### Why are the changes needed?

This is a bug because you cannot qualify column names in queries.

### Does this PR introduce any user-facing change?

Yes, now users can qualify column names for v2 tables.

### How was this patch tested?

Added new tests.

Closes #27391 from imback82/qualified_col.

Authored-by: Terry Kim <yuminkim@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-06 13:54:17 +08:00
yi.wu aebabf0bed [SPARK-30729][CORE] Eagerly filter out zombie TaskSetManager before offering resources
### What changes were proposed in this pull request?

Eagerly filter out zombie `TaskSetManager` before offering resources to reduce any overhead as possible.

And this PR also avoid doing `recomputeLocality` and `addPendingTask` when `TaskSetManager` is zombie.

### Why are the changes needed?

Zombie `TaskSetManager` could still exist in Pool's `schedulableQueue` when it has running tasks. Offering resources on a zombie `TaskSetManager` could bring unnecessary overhead and is meaningless.

### Does this PR introduce any user-facing change?

No.

### How was this patch tested?

Pass Jenkins.

Closes #27455 from Ngone51/exclude-zombie-tsm.

Authored-by: yi.wu <yi.wu@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-02-06 12:48:27 +08:00
HyukjinKwon b95ccb1d8b [SPARK-30737][SPARK-27262][R][BUILD] Reenable CRAN check with UTF-8 encoding to DESCRIPTION
### What changes were proposed in this pull request?

This PR proposes to reenable CRAN check disabled at https://github.com/apache/spark/pull/27460. Given the tests https://github.com/apache/spark/pull/27468, seems we should also port https://github.com/apache/spark/pull/23823 together.

### Why are the changes needed?
To check CRAN back.

### Does this PR introduce any user-facing change?
No.

### How was this patch tested?
It was tested at https://github.com/apache/spark/pull/27468 and Jenkins should test it out.

Closes #27472 from HyukjinKwon/SPARK-30737.

Authored-by: HyukjinKwon <gurwls223@apache.org>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-02-06 13:01:08 +09:00
HyukjinKwon 20c60a43cc [MINOR][INFRA] Factor Python executable out as a variable in 'lint-python' script
### What changes were proposed in this pull request?

This PR proposes to make hardcoded `python3` to a variable `PYTHON_EXECUTABLE` in ' lint-python' script.

### Why are the changes needed?

To make changes easier. See 561e9b9688 as an example.

### Does this PR introduce any user-facing change?

No

### How was this patch tested?

Manually by running `dev/lint-python`.

Closes #27470 from HyukjinKwon/minor-PYTHON_EXECUTABLE.

Authored-by: HyukjinKwon <gurwls223@apache.org>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2020-02-05 17:01:33 -08:00