Commit graph

6349 commits

Author SHA1 Message Date
maryannxue af2d3d0179 [SPARK-30315][SQL] Add adaptive execution context
### What changes were proposed in this pull request?
This is a minor code refactoring PR. It creates an adaptive execution context class to wrap objects shared across main query and sub-queries.

### Why are the changes needed?
This refactoring will improve code readability and reduce the number of parameters used to initialize `AdaptiveSparkPlanExec`.

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

### How was this patch tested?
Passed existing UTs.

Closes #26959 from maryannxue/aqe-context.

Authored-by: maryannxue <maryannxue@apache.org>
Signed-off-by: Xiao Li <gatorsmile@gmail.com>
2020-01-08 16:11:46 -08:00
Jungtaek Lim (HeartSaVioR) bd7510bcb7 [SPARK-30281][SS] Consider partitioned/recursive option while verifying archive path on FileStreamSource
### What changes were proposed in this pull request?

This patch renews the verification logic of archive path for FileStreamSource, as we found the logic doesn't take partitioned/recursive options into account.

Before the patch, it only requires the archive path to have depth more than 2 (two subdirectories from root), leveraging the fact FileStreamSource normally reads the files where the parent directory matches the pattern or the file itself matches the pattern. Given 'archive' operation moves the files to the base archive path with retaining the full path, archive path is tend to be safe if the depth is more than 2, meaning FileStreamSource doesn't re-read archived files as new source files.

WIth partitioned/recursive options, the fact is invalid, as FileStreamSource can read any files in any depth of subdirectories for source pattern. To deal with this correctly, we have to renew the verification logic, which may not intuitive and simple but works for all cases.

The new verification logic prevents both cases:

1) archive path matches with source pattern as "prefix" (the depth of archive path > the depth of source pattern)

e.g.
* source pattern: `/hello*/spar?`
* archive path: `/hello/spark/structured/streaming`

Any files in archive path will match with source pattern when recursive option is enabled.

2) source pattern matches with archive path as "prefix" (the depth of source pattern > the depth of archive path)

e.g.
* source pattern: `/hello*/spar?/structured/hello2*`
* archive path: `/hello/spark/structured`

Some archive files will not match with source pattern, e.g. file path:  `/hello/spark/structured/hello2`, then final archived path: `/hello/spark/structured/hello/spark/structured/hello2`.

But some other archive files will still match with source pattern, e.g. file path: `/hello2/spark/structured/hello2`, then final archived path: `/hello/spark/structured/hello2/spark/structured/hello2` which matches with source pattern when recursive is enabled.

Implicitly it also prevents archive path matches with source pattern as full match (same depth).

We would want to prevent any source files to be archived and added to new source files again, so the patch takes most restrictive approach to prevent the possible cases.

### Why are the changes needed?

Without this patch, there's a chance archived files are included as new source files when partitioned/recursive option is enabled, as current condition doesn't take these options into account.

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

Only for Spark 3.0.0-preview (only preview 1 for now, but possibly preview 2 as well) - end users are required to provide archive path with ensuring a bit complicated conditions, instead of simply higher than 2 depths.

### How was this patch tested?

New UT.

Closes #26920 from HeartSaVioR/SPARK-30281.

Authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan.opensource@gmail.com>
Signed-off-by: Marcelo Vanzin <vanzin@cloudera.com>
2020-01-08 09:15:41 -08:00
zhengruifeng a93b996635 [MINOR][ML][INT] Array.fill(0) -> Array.ofDim; Array.empty -> Array.emptyIntArray
### What changes were proposed in this pull request?
1, for primitive types `Array.fill(n)(0)` -> `Array.ofDim(n)`;
2, for `AnyRef` types `Array.fill(n)(null)` -> `Array.ofDim(n)`;
3, for primitive types `Array.empty[XXX]` -> `Array.emptyXXXArray`

### Why are the changes needed?
`Array.ofDim` avoid assignments;
`Array.emptyXXXArray` avoid create new object;

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

### How was this patch tested?
existing testsuites

Closes #27133 from zhengruifeng/minor_fill_ofDim.

Authored-by: zhengruifeng <ruifengz@foxmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-01-09 00:07:42 +09:00
Zhenhua Wang fa36966b1e [SPARK-30410][SQL] Calculating size of table with large number of partitions causes flooding logs
### What changes were proposed in this pull request?

For a partitioned table, if the number of partitions are very large, e.g. tens of thousands or even larger, calculating its total size causes flooding logs.
The flooding happens in:
1. `calculateLocationSize` prints the starting and ending for calculating the location size, and it is called per partition;
2. `bulkListLeafFiles` prints all partition paths.

This pr is to simplify the logging when calculating the size of a partitioned table.

### How was this patch tested?

not related

Closes #27079 from wzhfy/improve_log.

Authored-by: Zhenhua Wang <wzh_zju@163.com>
Signed-off-by: Sean Owen <srowen@gmail.com>
2020-01-08 08:22:38 -06:00
fuwhu 047bff06c3 [SPARK-30215][SQL] Remove PrunedInMemoryFileIndex and merge its functionality into InMemoryFileIndex
### What changes were proposed in this pull request?
Remove PrunedInMemoryFileIndex and merge its functionality into InMemoryFileIndex.

### Why are the changes needed?
PrunedInMemoryFileIndex is only used in CatalogFileIndex.filterPartitions, and its name is kind of confusing, we can completely merge its functionality into InMemoryFileIndex and remove the class.

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

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

Closes #26850 from fuwhu/SPARK-30215.

Authored-by: fuwhu <bestwwg@163.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-01-08 20:28:15 +08:00
Terry Kim b2ed6d0b88 [SPARK-30214][SQL][FOLLOWUP] Remove statement logical plans for namespace commands
### What changes were proposed in this pull request?

This is a follow-up to address the following comment: https://github.com/apache/spark/pull/27095#discussion_r363152180

Currently, a SQL command string is parsed to a "statement" logical plan, converted to a logical plan with catalog/namespace, then finally converted to a physical plan. With the new resolution framework, there is no need to create a "statement" logical plan; a logical plan can contain `UnresolvedNamespace` which will be resolved to a `ResolvedNamespace`. This should simply the code base and make it a bit easier to add a new command.

### Why are the changes needed?

Clean up codebase.

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

No

### How was this patch tested?

Existing tests should cover the changes.

Closes #27125 from imback82/SPARK-30214-followup.

Authored-by: Terry Kim <yuminkim@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-01-08 19:33:19 +08:00
Zhenhua Wang 9535776e28 [SPARK-30302][SQL] Complete info for show create table for views
### What changes were proposed in this pull request?

Add table/column comments and table properties to the result of show create table of views.

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

When show create table for views, after this patch, the result can contain table/column comments and table properties if they exist.

### How was this patch tested?

add new tests

Closes #26944 from wzhfy/complete_show_create_view.

Authored-by: Zhenhua Wang <wzh_zju@163.com>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
2020-01-08 11:28:37 +09:00
Pablo Langa 9479887ba1 [SPARK-30039][SQL] CREATE FUNCTION should do multi-catalog resolution
### What changes were proposed in this pull request?

Add CreateFunctionStatement and make CREATE FUNCTION go through the same catalog/table resolution framework of v2 commands.

### Why are the changes needed?

It's important to make all the commands have the same table resolution behavior, to avoid confusing
CREATE FUNCTION namespace.function

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

Yes. When running CREATE FUNCTION namespace.function Spark fails the command if the current catalog is set to a v2 catalog.

### How was this patch tested?

Unit tests.

Closes #26890 from planga82/feature/SPARK-30039_CreateFunctionV2Command.

Authored-by: Pablo Langa <soypab@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-01-08 00:38:15 +08:00
Kent Yao 8c121b0827 [SPARK-30431][SQL] Update SqlBase.g4 to create commentSpec pattern like locationSpec
### What changes were proposed in this pull request?

In `SqlBase.g4`, the `comment` clause is used as `COMMENT comment=STRING` and `COMMENT STRING` in many places.

While the `location` clause often appears along with the `comment` clause with a pattern defined as
```sql
locationSpec
    : LOCATION STRING
    ;
```
Then, we have to visit `locationSpec` as a `List` but comment as a single token.

We defined `commentSpec` for the comment clause to simplify and unify the grammar and the invocations.

### Why are the changes needed?

To simplify the grammar.

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

no
### How was this patch tested?

existing tests

Closes #27102 from yaooqinn/SPARK-30431.

Authored-by: Kent Yao <yaooqinn@hotmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-01-07 22:12:09 +08:00
Terry Kim 314e70fe23 [SPARK-30214][SQL] V2 commands resolves namespaces with new resolution framework
### What changes were proposed in this pull request?

#26847 introduced new framework for resolving catalog/namespaces. This PR proposes to integrate commands that need to resolve namespaces into the new framework.

### Why are the changes needed?

This is one of the work items for moving into the new resolution framework. Resolving v1/v2 tables with the new framework will be followed up in different PRs.

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

No

### How was this patch tested?

Existing tests should cover the changes.

Closes #27095 from imback82/unresolved_ns.

Authored-by: Terry Kim <yuminkim@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-01-07 21:32:08 +08:00
HyukjinKwon 866b7df348 [SPARK-30335][SQL][DOCS] Add a note first, last, collect_list and collect_set can be non-deterministic in SQL function docs as well
### What changes were proposed in this pull request?
This PR adds a note first and last can be non-deterministic in SQL function docs as well.
This is already documented in `functions.scala`.

### Why are the changes needed?
Some people look reading SQL docs only.

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

### How was this patch tested?
Jenkins will test.

Closes #27099 from HyukjinKwon/SPARK-30335.

Authored-by: HyukjinKwon <gurwls223@apache.org>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-01-07 14:31:59 +09:00
Josh Rosen 7a1a5db35f [SPARK-30414][SQL] ParquetRowConverter optimizations: arrays, maps, plus misc. constant factors
### What changes were proposed in this pull request?

This PR implements multiple performance optimizations for `ParquetRowConverter`, achieving some modest constant-factor wins for all fields and larger wins for map and array fields:

- Add `private[this]` to several `val`s (90cebf080a5d3857ea8cf2a89e8e060b8b5a2fbf)
- Keep a `fieldUpdaters` array, saving two`.updater()` calls per field (7318785d350cc924198d7514e40973fd76d54ad5): I suspect that these are often megamorphic calls, so cutting these out seems like it could be a relatively large performance win.
- Only call `currentRow.numFields` once per `start()` call (e05de150813b639929c18af1df09ec718d2d16fc): previously we'd call it once per field and this had a significant enough cost that it was visible during profiling.
- Reuse buffers in array and map converters (c7d1534685fbad5d2280b082f37bed6d75848e76, 6d16f596ef6af9fd8946a062f79d0eeace9e1959): previously we would create a brand-new Scala `ArrayBuffer` for each field read, but this isn't actually necessary because the data is already copied into a fresh array when `end()` constructs a `GenericArrayData`.

### Why are the changes needed?

To improve Parquet read performance; this is complementary to #26993's (orthogonal) improvements for nested struct read performance.

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

No.

### How was this patch tested?

Existing tests, plus manual benchmarking with both synthetic and realistic schemas (similar to the ones in #26993). I've seen ~10%+ improvements in scan performance on certain real-world datasets.

Closes #27089 from JoshRosen/joshrosen/more-ParquetRowConverter-optimizations.

Lead-authored-by: Josh Rosen <rosenville@gmail.com>
Co-authored-by: Josh Rosen <joshrosen@stripe.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-01-07 14:30:10 +09:00
Josh Rosen 93d3ab88cd [SPARK-30338][SQL] Avoid unnecessary InternalRow copies in ParquetRowConverter
### What changes were proposed in this pull request?

This PR modifies `ParquetRowConverter` to remove unnecessary `InternalRow.copy()` calls for structs that are directly nested in other structs.

### Why are the changes needed?

These changes  can significantly improve performance when reading Parquet files that contain deeply-nested structs with many fields.

The `ParquetRowConverter` uses per-field `Converter`s for handling individual fields. Internally, these converters may have mutable state and may return mutable objects. In most cases, each `converter` is only invoked once per Parquet record (this is true for top-level fields, for example). However, arrays and maps may call their child element converters multiple times per Parquet record: in these cases we must be careful to copy any mutable outputs returned by child converters.

In the existing code, `InternalRow`s are copied whenever they are stored into _any_ parent container (not just maps and arrays). This copying can be especially expensive for deeply-nested fields, since a deep copy is performed at every level of nesting.

This PR modifies the code to avoid copies for structs that are directly nested in structs; see inline code comments for an argument for why this is safe.

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

No.

### How was this patch tested?

**Correctness**:  I added new test cases to `ParquetIOSuite` to increase coverage of nested structs, including structs nested in arrays: previously this suite didn't test that case, so we used to lack mutation coverage of this `copy()` code (the suite's tests still passed if I incorrectly removed the `.copy()` in all cases). I also added a test for maps with struct keys and modified the existing "map with struct values" test case include maps with two elements (since the incorrect omission of a `copy()` can only be detected if the map has multiple elements).

**Performance**: I put together a simple local benchmark demonstrating the performance problems:

First, construct a nested schema:

```scala
  case class Inner(
    f1: Int,
    f2: Long,
    f3: String,
    f4: Int,
    f5: Long,
    f6: String,
    f7: Int,
    f8: Long,
    f9: String,
    f10: Int
  )

  case class Wrapper1(inner: Inner)
  case class Wrapper2(wrapper1: Wrapper1)
  case class Wrapper3(wrapper2: Wrapper2)
```

`Wrapper3`'s schema looks like:

```
root
 |-- wrapper2: struct (nullable = true)
 |    |-- wrapper1: struct (nullable = true)
 |    |    |-- inner: struct (nullable = true)
 |    |    |    |-- f1: integer (nullable = true)
 |    |    |    |-- f2: long (nullable = true)
 |    |    |    |-- f3: string (nullable = true)
 |    |    |    |-- f4: integer (nullable = true)
 |    |    |    |-- f5: long (nullable = true)
 |    |    |    |-- f6: string (nullable = true)
 |    |    |    |-- f7: integer (nullable = true)
 |    |    |    |-- f8: long (nullable = true)
 |    |    |    |-- f9: string (nullable = true)
 |    |    |    |-- f10: integer (nullable = true)
```

Next, generate some fake data:

```scala
  val data = spark.range(1, 1000 * 1000 * 25, 1, 1).map { i =>
    Wrapper3(Wrapper2(Wrapper1(Inner(
      i.toInt,
      i * 2,
      (i * 3).toString,
      (i * 4).toInt,
      i * 5,
      (i * 6).toString,
      (i * 7).toInt,
      i * 8,
      (i * 9).toString,
      (i * 10).toInt
    ))))
  }

  data.write.mode("overwrite").parquet("/tmp/parquet-test")
```

I then ran a simple benchmark consisting of

```
spark.read.parquet("/tmp/parquet-test").selectExpr("hash(*)").rdd.count()
```

where the `hash(*)` is designed to force decoding of all Parquet fields but avoids `RowEncoder` costs in the `.rdd.count()` stage.

In the old code, expensive copying takes place at every level of nesting; this is apparent in the following flame graph:

![image](https://user-images.githubusercontent.com/50748/71389014-88a15380-25af-11ea-9537-3e87a2aef179.png)

After this PR's changes, the above toy benchmark runs ~30% faster.

Closes #26993 from JoshRosen/joshrosen/faster-parquet-nested-scan-by-avoiding-copies.

Lead-authored-by: Josh Rosen <rosenville@gmail.com>
Co-authored-by: Josh Rosen <joshrosen@stripe.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-01-07 13:01:37 +08:00
Yuming Wang 17881a467a [SPARK-19784][SPARK-25403][SQL] Refresh the table even table stats is empty
## What changes were proposed in this pull request?

We invalidate table relation once table data is changed by [SPARK-21237](https://issues.apache.org/jira/browse/SPARK-21237). But there is a situation we have not invalidated(`spark.sql.statistics.size.autoUpdate.enabled=false` and `table.stats.isEmpty`):
07c4b9bd1f/sql/core/src/main/scala/org/apache/spark/sql/execution/command/CommandUtils.scala (L44-L54)

This will introduce some issues, e.g. [SPARK-19784](https://issues.apache.org/jira/browse/SPARK-19784), [SPARK-19845](https://issues.apache.org/jira/browse/SPARK-19845), [SPARK-25403](https://issues.apache.org/jira/browse/SPARK-25403), [SPARK-25332](https://issues.apache.org/jira/browse/SPARK-25332) and [SPARK-28413](https://issues.apache.org/jira/browse/SPARK-28413).

This is a example to reproduce [SPARK-19784](https://issues.apache.org/jira/browse/SPARK-19784):
```scala
val path = "/tmp/spark/parquet"
spark.sql("CREATE TABLE t (a INT) USING parquet")
spark.sql("INSERT INTO TABLE t VALUES (1)")
spark.range(5).toDF("a").write.parquet(path)
spark.sql(s"ALTER TABLE t SET LOCATION '${path}'")
spark.table("t").count() // return 1
spark.sql("refresh table t")
spark.table("t").count() // return 5
```

This PR invalidates the table relation in this case(`spark.sql.statistics.size.autoUpdate.enabled=false` and `table.stats.isEmpty`) to fix this issue.

## How was this patch tested?

unit tests

Closes #22721 from wangyum/SPARK-25403.

Authored-by: Yuming Wang <yumwang@ebay.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-01-07 11:41:34 +08:00
Ximo Guanter 604d6799df [SPARK-30226][SQL] Remove withXXX functions in WriteBuilder
### What changes were proposed in this pull request?
Adding a `LogicalWriteInfo` interface as suggested by cloud-fan in https://github.com/apache/spark/pull/25990#issuecomment-555132991

### Why are the changes needed?
It provides compile-time guarantees where we previously had none, which will make it harder to introduce bugs in the future.

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

### How was this patch tested?
Compiles and passes tests

Closes #26678 from edrevo/add-logical-write-info.

Lead-authored-by: Ximo Guanter <joaquin.guantergonzalbez@telefonica.com>
Co-authored-by: Ximo Guanter
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-01-06 23:53:45 +08:00
angerszhu 3eade744f8 [SPARK-29800][SQL] Rewrite non-correlated EXISTS subquery use ScalaSubquery to optimize perf
### What changes were proposed in this pull request?

Current catalyst rewrite non-correlated exists subquery to BroadcastNestLoopJoin, it's performance is not good , now we rewrite non-correlated EXISTS subquery to ScalaSubquery to optimize the performance.
We rewrite
```
 WHERE EXISTS (SELECT A FROM TABLE B WHERE COL1 > 10)
```
to
```
 WHERE (SELECT 1 FROM (SELECT A FROM TABLE B WHERE COL1 > 10) LIMIT 1) IS NOT NULL
```
to avoid build join to solve EXISTS expression.

### Why are the changes needed?
Optimize EXISTS performance.

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

### How was this patch tested?
Manuel Tested

Closes #26437 from AngersZhuuuu/SPARK-29800.

Lead-authored-by: angerszhu <angers.zhu@gmail.com>
Co-authored-by: AngersZhuuuu <angers.zhu@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-01-06 22:54:37 +08:00
Wenchen Fan be4faafee4 Revert "[SPARK-23264][SQL] Make INTERVAL keyword optional when ANSI enabled"
### What changes were proposed in this pull request?

Revert https://github.com/apache/spark/pull/20433 .
### Why are the changes needed?

According to the SQL standard, the INTERVAL prefix is required:
```
<interval literal> ::=
  INTERVAL [ <sign> ] <interval string> <interval qualifier>

<interval string> ::=
  <quote> <unquoted interval string> <quote>
```

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

yes, but omitting the INTERVAL prefix is a new feature in 3.0

### How was this patch tested?

existing tests

Closes #27080 from cloud-fan/interval.

Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Xiao Li <gatorsmile@gmail.com>
2020-01-03 12:51:10 -08:00
yi.wu e38964c442 [SPARK-29768][SQL][FOLLOW-UP] Improve handling non-deterministic filter of ScanOperation
### What changes were proposed in this pull request?

1. For `ScanOperation`, if it collects more than one filters, then all filters must be deterministic. And filter can be non-deterministic iff there's only one collected filter.

2. `FileSourceStrategy` should filter out non-deterministic filter, as it will hit haven't initialized exception if it's a partition related filter.

### Why are the changes needed?

Strictly follow `CombineFilters`'s behavior which doesn't allow combine two filters where non-deterministic predicates exist. And avoid hitting exception for file source.

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

No

### How was this patch tested?

Test exists.

Closes #27073 from Ngone51/SPARK-29768-FOLLOWUP.

Authored-by: yi.wu <yi.wu@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-01-03 21:48:14 +08:00
Kent Yao c49388a484 [SPARK-30214][SQL] A new framework to resolve v2 commands
### What changes were proposed in this pull request?
Currently, we have a v2 adapter for v1 catalog (`V2SessionCatalog`), all the table/namespace commands can be implemented via v2 APIs.

Usually, a command needs to know which catalog it needs to operate, but different commands have different requirements about what to resolve. A few examples:

  - `DROP NAMESPACE`: only need to know the name of the namespace.
  - `DESC NAMESPACE`: need to lookup the namespace and get metadata, but is done during execution
  - `DROP TABLE`: need to do lookup and make sure it's a table not (temp) view.
  - `DESC TABLE`: need to lookup the table and get metadata.

For namespaces, the analyzer only needs to find the catalog and the namespace name. The command can do lookup during execution if needed.

For tables, mostly commands need the analyzer to do lookup.

Note that, table and namespace have a difference: `DESC NAMESPACE testcat` works and describes the root namespace under `testcat`, while `DESC TABLE testcat` fails if there is no table `testcat` under the current catalog. It's because namespaces can be named [], but tables can't. The commands should explicitly specify it needs to operate on namespace or table.

In this Pull Request, we introduce a new framework to resolve v2 commands:
1. parser creates logical plans or commands with `UnresolvedNamespace`/`UnresolvedTable`/`UnresolvedView`/`UnresolvedRelation`. (CREATE TABLE still keeps Seq[String], as it doesn't need to look up relations)
2. analyzer converts
2.1 `UnresolvedNamespace` to `ResolvesNamespace` (contains catalog and namespace identifier)
2.2 `UnresolvedTable` to `ResolvedTable` (contains catalog, identifier and `Table`)
2.3 `UnresolvedView` to `ResolvedView` (will be added later when we migrate view commands)
2.4 `UnresolvedRelation` to relation.
3. an extra analyzer rule to match commands with `V1Table` and converts them to corresponding v1 commands. This will be added later when we migrate existing commands
4. planner matches commands and converts them to the corresponding physical nodes.

We also introduce brand new v2 commands - the `comment` syntaxes to illustrate how to work with the newly added framework.
```sql
COMMENT ON (DATABASE|SCHEMA|NAMESPACE) ... IS ...
COMMENT ON TABLE ... IS ...
```
Details about the `comment` syntaxes:
As the new design of catalog v2, some properties become reserved, e.g. `location`, `comment`. We are going to disable setting reserved properties by dbproperties or tblproperites directly to avoid confliction with their related subClause or specific commands.

They are the best practices from PostgreSQL and presto.

https://www.postgresql.org/docs/12/sql-comment.html
https://prestosql.io/docs/current/sql/comment.html

Mostly, the basic thoughts of the new framework came from the discussions bellow with cloud-fan,  https://github.com/apache/spark/pull/26847#issuecomment-564510061,

### Why are the changes needed?
To make it easier to add new v2 commands, and easier to unify the table relation behavior.

### Does this PR introduce any user-facing change?
yes, add new syntax

### How was this patch tested?

add uts.

Closes #26847 from yaooqinn/SPARK-30214.

Authored-by: Kent Yao <yaooqinn@hotmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-01-03 16:09:06 +08:00
Maxim Gekk 51373467cc [SPARK-30412][SQL][TESTS] Eliminate warnings in Java tests regarding to deprecated Spark SQL API
### What changes were proposed in this pull request?
In the PR, I propose to add the `SuppressWarnings("deprecation")` annotation to Java tests for deprecated Spark SQL APIs.

### Why are the changes needed?
This eliminates the following warnings:
```
sql/core/src/test/java/test/org/apache/spark/sql/JavaDatasetAggregatorSuite.java
    Warning:Warning:line (32)java: org.apache.spark.sql.expressions.javalang.typed in org.apache.spark.sql.expressions.javalang has been deprecated
    Warning:Warning:line (91)java: org.apache.spark.sql.expressions.javalang.typed in org.apache.spark.sql.expressions.javalang has been deprecated
    Warning:Warning:line (100)java: org.apache.spark.sql.expressions.javalang.typed in org.apache.spark.sql.expressions.javalang has been deprecated
    Warning:Warning:line (109)java: org.apache.spark.sql.expressions.javalang.typed in org.apache.spark.sql.expressions.javalang has been deprecated
    Warning:Warning:line (118)java: org.apache.spark.sql.expressions.javalang.typed in org.apache.spark.sql.expressions.javalang has been deprecated

sql/core/src/test/java/test/org/apache/spark/sql/Java8DatasetAggregatorSuite.java
    Warning:Warning:line (28)java: org.apache.spark.sql.expressions.javalang.typed in org.apache.spark.sql.expressions.javalang has been deprecated
    Warning:Warning:line (37)java: org.apache.spark.sql.expressions.javalang.typed in org.apache.spark.sql.expressions.javalang has been deprecated
    Warning:Warning:line (46)java: org.apache.spark.sql.expressions.javalang.typed in org.apache.spark.sql.expressions.javalang has been deprecated
    Warning:Warning:line (55)java: org.apache.spark.sql.expressions.javalang.typed in org.apache.spark.sql.expressions.javalang has been deprecated
    Warning:Warning:line (64)java: org.apache.spark.sql.expressions.javalang.typed in org.apache.spark.sql.expressions.javalang has been deprecated

sql/core/src/test/java/test/org/apache/spark/sql/JavaDataFrameSuite.java
    Warning:Warning:line (478)java: json(org.apache.spark.api.java.JavaRDD<java.lang.String>) in org.apache.spark.sql.DataFrameReader has been deprecated
```
and highlights warnings about real problems.

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

### How was this patch tested?
By existing test suites `Java8DatasetAggregatorSuite.java`, `JavaDataFrameSuite.java` and `JavaDatasetAggregatorSuite.java`.

Closes #27081 from MaxGekk/eliminate-warnings-part2.

Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-01-03 13:26:48 +09:00
Maxim Gekk a469976e6e [SPARK-29930][SQL][FOLLOW-UP] Allow only default value to be set for removed SQL configs
### What changes were proposed in this pull request?
In the PR, I propose to throw `AnalysisException` when a removed SQL config is set to non-default value. The following SQL configs removed by #26559 are marked as removed:
1. `spark.sql.fromJsonForceNullableSchema`
2. `spark.sql.legacy.compareDateTimestampInTimestamp`
3. `spark.sql.legacy.allowCreatingManagedTableUsingNonemptyLocation`

### Why are the changes needed?
To improve user experience with Spark SQL by notifying of removed SQL configs used by users.

### Does this PR introduce any user-facing change?
Yes, before the `set` command was silently ignored:
```sql
spark-sql> set spark.sql.fromJsonForceNullableSchema=false;
spark.sql.fromJsonForceNullableSchema	false
```
after the exception should be raised:
```sql
spark-sql> set spark.sql.fromJsonForceNullableSchema=false;
Error in query: The SQL config 'spark.sql.fromJsonForceNullableSchema' was removed in the version 3.0.0. It was removed to prevent errors like SPARK-23173 for non-default value.;
```

### How was this patch tested?
Added new tests into `SQLConfSuite` for both cases when removed SQL configs are set to default and non-default values.

Closes #27057 from MaxGekk/remove-sql-configs-followup.

Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-01-03 10:41:30 +09:00
Kent Yao e04309cb1f [SPARK-30341][SQL] Overflow check for interval arithmetic operations
### What changes were proposed in this pull request?

1. For the interval arithmetic functions, e.g. `add`/`subtract`/`negative`/`multiply`/`divide`, enable overflow check when `ANSI` is on.

2. For `multiply`/`divide`,  throw an exception when an overflow happens in spite of `ANSI` is on/off.

3. `add`/`subtract`/`negative` stay the same for backward compatibility.

4. `divide` by 0 throws ArithmeticException whether `ANSI` or not as same as numerics.

5. These behaviors fit the numeric type operations fully when ANSI is on.

6. These behaviors fit the numeric type operations fully when ANSI is off, except 2 and 4.

### Why are the changes needed?

1. bug fix
2. `ANSI` support

### Does this PR introduce any user-facing change?
When `ANSI` is on, interval `add`/`subtract`/`negative`/`multiply`/`divide` will overflow if any field overflows

### How was this patch tested?

add unit tests

Closes #26995 from yaooqinn/SPARK-30341.

Authored-by: Kent Yao <yaooqinn@hotmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-01-03 02:04:20 +08:00
Wenchen Fan 1743d5be7f [SPARK-30284][SQL] CREATE VIEW should keep the current catalog and namespace
### What changes were proposed in this pull request?

Update CREATE VIEW command to store the current catalog and namespace instead of current database in view metadata. Also update analyzer to leverage the catalog and namespace in view metastore to resolve relations inside views.

Note that, this PR still keeps the way we resolve views, by recursively calling Analyzer. This is necessary because view text may contain CTE, window spec, etc. which needs rules outside of the main resolution batch (e.g. `CTESubstitution`)

### Why are the changes needed?

To resolve relations inside view correctly.

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

Yes, fix a bug. Now tables referred by a view can be resolved correctly even if the current catalog/namespace has been updated.

### How was this patch tested?

a new test

Closes #26923 from cloud-fan/view.

Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-01-03 01:41:32 +08:00
jiake 6bd5494f34 [SPARK-30403][SQL] fix the NoSuchElementException when enable AQE with InSubquery expression
### What changes were proposed in this pull request?
This PR aim to fix the NoSuchElementException  exception when enable AQE with insubquery expression.

### Why are the changes needed?
Fix exception

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

### How was this patch tested?
added new ut

Closes #27068 from JkSelf/fixSubqueryIssue.

Authored-by: jiake <ke.a.jia@intel.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-01-02 23:11:56 +08:00
jiake 05f7b57ddc [SPARK-30407][SQL] fix the reset metric issue when enable AQE
### What changes were proposed in this pull request?
When working on [PR#26813](https://github.com/apache/spark/pull/26813), we encounter the exception in [here(the number of metrics(1) is 2 not 1 )](5d870ef0bc/sql/core/src/test/scala/org/apache/spark/sql/util/DataFrameCallbackSuite.scala (L120)). This PR fix the above exception.

### Why are the changes needed?
Fix exception

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

### How was this patch tested?
[this test with enable AQE](5d870ef0bc/sql/core/src/test/scala/org/apache/spark/sql/util/DataFrameCallbackSuite.scala (L120))

Closes #27074 from JkSelf/resetMetricsIssue.

Authored-by: jiake <ke.a.jia@intel.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2020-01-02 21:55:36 +08:00
Maxim Gekk b316d37365 [SPARK-30401][SQL] Call requireNonStaticConf() only once in set()
### What changes were proposed in this pull request?
Calls of `requireNonStaticConf()` are removed from the `set()` methods in RuntimeConfig because those methods invoke `def set(key: String, value: String): Unit` where `requireNonStaticConf()` is called as well.

### Why are the changes needed?
To avoid unnecessary calls of `requireNonStaticConf()`.

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

### How was this patch tested?
By existing tests from `SQLConfSuite`

Closes #27062 from MaxGekk/call-requireNonStaticConf-once.

Authored-by: Maxim Gekk <max.gekk@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2020-01-02 09:56:50 +09:00
Jungtaek Lim (HeartSaVioR) e054a0af6f [SPARK-29348][SQL][FOLLOWUP] Fix slight bug on streaming example for Dataset.observe
### What changes were proposed in this pull request?

This patch fixes a small bug in the example of streaming query, as the type of observable metrics is Java Map instead of Scala Map, so to use foreach it should be converted first.

### Why are the changes needed?

Described above.

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

No.

### How was this patch tested?

Ran below query via `spark-shell`:

**Streaming**

```scala
import scala.collection.JavaConverters._
import scala.util.Random
import org.apache.spark.sql.streaming.StreamingQueryListener
import org.apache.spark.sql.streaming.StreamingQueryListener._

spark.streams.addListener(new StreamingQueryListener() {
  override def onQueryProgress(event: QueryProgressEvent): Unit = {
    event.progress.observedMetrics.asScala.get("my_event").foreach { row =>
      // Trigger if the number of errors exceeds 5 percent
      val num_rows = row.getAs[Long]("rc")
      val num_error_rows = row.getAs[Long]("erc")
      val ratio = num_error_rows.toDouble / num_rows
      if (ratio > 0.05) {
        // Trigger alert
        println(s"alert! error ratio: $ratio")
      }
    }
  }

  def onQueryStarted(event: QueryStartedEvent): Unit = {}
  def onQueryTerminated(event: QueryTerminatedEvent): Unit = {}
})

val rates = spark
  .readStream
  .format("rate")
  .option("rowsPerSecond", 10)
  .load

val rand = new Random()
val df = rates.map { row => (row.getLong(1), if (row.getLong(1) % 2 == 0) "error" else null) }.toDF
val ds = df.selectExpr("_1 AS id", "_2 AS error")
// Observe row count (rc) and error row count (erc) in the batch Dataset
val observed_ds = ds.observe("my_event", count(lit(1)).as("rc"), count($"error").as("erc"))
observed_ds.writeStream.format("console").start()
```

Closes #27046 from HeartSaVioR/SPARK-29348-FOLLOWUP.

Authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan.opensource@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2019-12-31 01:08:25 +09:00
HyukjinKwon 7079e871a7 [SPARK-30185][SQL] Implement Dataset.tail API
### What changes were proposed in this pull request?

This PR proposes a `tail` API.

Namely, as below:

```scala
scala> spark.range(10).head(5)
res1: Array[Long] = Array(0, 1, 2, 3, 4)
scala> spark.range(10).tail(5)
res2: Array[Long] = Array(5, 6, 7, 8, 9)
```

Implementation details will be similar with `head` but it will be reversed:

1. Run the job against the last partition and collect rows. If this is enough, return as is.
2. If this is not enough, calculate the number of partitions to select more based upon
 `spark.sql.limit.scaleUpFactor`
3. Run more jobs against more partitions (in a reversed order compared to head) as many as the number calculated from 2.
4. Go to 2.

**Note that**, we don't guarantee the natural order in DataFrame in general - there are cases when it's deterministic and when it's not. We probably should write down this as a caveat separately.

### Why are the changes needed?

Many other systems support the way to take data from the end, for instance, pandas[1] and
 Python[2][3]. Scala collections APIs also have head and tail

On the other hand, in Spark, we only provide a way to take data from the start
 (e.g., DataFrame.head).

This has been requested multiple times here and there in Spark user mailing list[4], StackOverFlow[5][6], JIRA[7] and other third party projects such as
 Koalas[8]. In addition, this missing API seems explicitly mentioned in comparison to another system[9] time to time.

It seems we're missing non-trivial use case in Spark and this motivated me to propose this API.

[1] https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.tail.html?highlight=tail#pandas.DataFrame.tail
[2] https://stackoverflow.com/questions/10532473/head-and-tail-in-one-line
[3] https://stackoverflow.com/questions/646644/how-to-get-last-items-of-a-list-in-python
[4] http://apache-spark-user-list.1001560.n3.nabble.com/RDD-tail-td4217.html
[5] https://stackoverflow.com/questions/39544796/how-to-select-last-row-and-also-how-to-access-pyspark-dataframe-by-index
[6] https://stackoverflow.com/questions/45406762/how-to-get-the-last-row-from-dataframe
[7] https://issues.apache.org/jira/browse/SPARK-26433
[8] https://github.com/databricks/koalas/issues/343
[9] https://medium.com/chris_bour/6-differences-between-pandas-and-spark-dataframes-1380cec394d2

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

No, (new API)

### How was this patch tested?

Unit tests were added and manually tested.

Closes #26809 from HyukjinKwon/wip-tail.

Authored-by: HyukjinKwon <gurwls223@apache.org>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2019-12-31 01:07:09 +09:00
Xiao Li 919d551ddb Revert "[SPARK-29390][SQL] Add the justify_days(), justify_hours() and justif_interval() functions"
This reverts commit f926809a1f.

Closes #27032 from gatorsmile/revertSPARK-29390.

Authored-by: Xiao Li <gatorsmile@gmail.com>
Signed-off-by: Xiao Li <gatorsmile@gmail.com>
2019-12-29 15:25:14 -08:00
sandeep katta 16e5e79877 [SPARK-28670][SQL] create function should thrown Exception if the resource is not found
## What changes were proposed in this pull request?

Create temporary or permanent function it should throw AnalysisException if the resource is not found. Need to keep behavior consistent across permanent and temporary functions.

## How was this patch tested?

Added UT and also tested manually

**Before Fix**
If the UDF resource is not present then on creation of temporary function it throws AnalysisException where as for permanent function it does not throw. Permanent funtcion  throws AnalysisException only after select operation is performed.

**After Fix**

For temporary and permanent function check for the resource, if the UDF resource is not found then throw AnalysisException

![rt](https://user-images.githubusercontent.com/35216143/62781519-d1131580-bad5-11e9-9d58-69e65be86c03.png)

Closes #25399 from sandeep-katta/funcIssue.

Authored-by: sandeep katta <sandeep.katta2007@gmail.com>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
2019-12-28 14:35:33 +09:00
lijunqing a2de20c0e6 [SPARK-30036][SQL] Fix: REPARTITION hint does not work with order by
### Why are the changes needed?
`EnsureRequirements` adds `ShuffleExchangeExec` (RangePartitioning) after Sort if `RoundRobinPartitioning` behinds it. This will cause 2 shuffles, and the number of partitions in the final stage is not the number specified by `RoundRobinPartitioning.

**Example SQL**
```
SELECT /*+ REPARTITION(5) */ * FROM test ORDER BY a
```

**BEFORE**
```
== Physical Plan ==
*(1) Sort [a#0 ASC NULLS FIRST], true, 0
+- Exchange rangepartitioning(a#0 ASC NULLS FIRST, 200), true, [id=#11]
   +- Exchange RoundRobinPartitioning(5), false, [id=#9]
      +- Scan hive default.test [a#0, b#1], HiveTableRelation `default`.`test`, org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, [a#0, b#1]
```

**AFTER**
```
== Physical Plan ==
*(1) Sort [a#0 ASC NULLS FIRST], true, 0
+- Exchange rangepartitioning(a#0 ASC NULLS FIRST, 5), true, [id=#11]
   +- Scan hive default.test [a#0, b#1], HiveTableRelation `default`.`test`, org.apache.hadoop.hive.serde2.lazy.LazySimpleSerDe, [a#0, b#1]
```

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

### How was this patch tested?
Run suite Tests and add new test for this.

Closes #26946 from stczwd/RoundRobinPartitioning.

Lead-authored-by: lijunqing <lijunqing@baidu.com>
Co-authored-by: stczwd <qcsd2011@163.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2019-12-27 11:52:39 +08:00
gengjiaan d59e7195f6 [SPARK-27986][SQL] Support ANSI SQL filter clause for aggregate expression
### What changes were proposed in this pull request?
The filter predicate for aggregate expression is an `ANSI SQL`.
```
<aggregate function> ::=
COUNT <left paren> <asterisk> <right paren> [ <filter clause> ]
| <general set function> [ <filter clause> ]
| <binary set function> [ <filter clause> ]
| <ordered set function> [ <filter clause> ]
| <array aggregate function> [ <filter clause> ]
| <row pattern count function> [ <filter clause> ]
```
There are some mainstream database support this syntax.
**PostgreSQL:**
https://www.postgresql.org/docs/current/sql-expressions.html#SYNTAX-AGGREGATES
For example:
```
SELECT
  year,
  count(*) FILTER (WHERE gdp_per_capita >= 40000)
FROM
  countries
GROUP BY
  year
```
```
SELECT
  year,
  code,
  gdp_per_capita,
  count(*)
    FILTER (WHERE gdp_per_capita >= 40000)
    OVER   (PARTITION BY year)
FROM
  countries
```
**jOOQ:**
https://blog.jooq.org/2014/12/30/the-awesome-postgresql-9-4-sql2003-filter-clause-for-aggregate-functions/

**Notice:**
1.This PR only supports FILTER predicate without codegen. maropu will create another PR is related to SPARK-30027 to support codegen.
2.This PR only supports FILTER predicate without DISTINCT. I will create another PR is related to SPARK-30276 to support this.
3.This PR only supports FILTER predicate that can't reference the outer query. I created ticket SPARK-30219 to support it.
4.This PR only supports FILTER predicate that can't use IN/EXISTS predicate sub-queries. I created ticket SPARK-30220 to support it.
5.Spark SQL cannot supports a SQL with nested aggregate. I created ticket SPARK-30182 to support it.

There are some show of the PR on my production environment.
```
spark-sql> desc gja_test_partition;
key     string  NULL
value   string  NULL
other   string  NULL
col2    int     NULL
# Partition Information
# col_name      data_type       comment
col2    int     NULL
Time taken: 0.79 s
```
```
spark-sql> select * from gja_test_partition;
a       A       ao      1
b       B       bo      1
c       C       co      1
d       D       do      1
e       E       eo      2
g       G       go      2
h       H       ho      2
j       J       jo      2
f       F       fo      3
k       K       ko      3
l       L       lo      4
i       I       io      4
Time taken: 1.75 s
```
```
spark-sql> select count(key), sum(col2) from gja_test_partition;
12      26
Time taken: 1.848 s
```
```
spark-sql> select count(key) filter (where col2 > 1) from gja_test_partition;
8
Time taken: 2.926 s
```
```
spark-sql> select sum(col2) filter (where col2 > 2) from gja_test_partition;
14
Time taken: 2.087 s
```
```
spark-sql> select count(key) filter (where col2 > 1), sum(col2) filter (where col2 > 2) from gja_test_partition;
8       14
Time taken: 2.847 s
```
```
spark-sql> select count(key), count(key) filter (where col2 > 1), sum(col2), sum(col2) filter (where col2 > 2) from gja_test_partition;
12      8       26      14
Time taken: 1.787 s
```
```
spark-sql> desc student;
id      int     NULL
name    string  NULL
sex     string  NULL
class_id        int     NULL
Time taken: 0.206 s
```
```
spark-sql> select * from student;
1       张三    man     1
2       李四    man     1
3       王五    man     2
4       赵六    man     2
5       钱小花  woman   1
6       赵九红  woman   2
7       郭丽丽  woman   2
Time taken: 0.786 s
```
```
spark-sql> select class_id, count(id), sum(id) from student group by class_id;
1       3       8
2       4       20
Time taken: 18.783 s
```
```
spark-sql> select class_id, count(id) filter (where sex = 'man'), sum(id) filter (where sex = 'woman') from student group by class_id;
1       2       5
2       2       13
Time taken: 3.887 s
```

### Why are the changes needed?
Add new SQL feature.

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

### How was this patch tested?
Exists UT and new UT.

Closes #26656 from beliefer/support-aggregate-clause.

Lead-authored-by: gengjiaan <gengjiaan@360.cn>
Co-authored-by: Jiaan Geng <beliefer@163.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2019-12-26 17:41:50 +08:00
wenfang 4d58cd77f9 [SPARK-30330][SQL] Support single quotes json parsing for get_json_object and json_tuple
### What changes were proposed in this pull request?

I execute some query as` select get_json_object(ytag, '$.y1') AS y1 from t4`; SparkSQL return null but  Hive return correct results.
In my production environment, ytag is a json wrapped by single quotes,as follows
```
{'y1': 'shuma', 'y2': 'shuma:shouji'}
{'y1': 'jiaoyu', 'y2': 'jiaoyu:gaokao'}
{'y1': 'yule', 'y2': 'yule:mingxing'}
```
Then l realized some functions including get_json_object and json_tuple does not support  single quotes json parsing.
So l provide this PR to resolve the question.

### Why are the changes needed?

Enabled for Hive compatibility

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

NO

### How was this patch tested?

NEW TESTS

Closes #26965 from wenfang6/enableSingleQuotesJsonForSparkSQL.

Authored-by: wenfang <wenfang@360.cn>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2019-12-26 11:45:31 +09:00
Kent Yao da65a955ed [SPARK-30266][SQL] Avoid match error and int overflow in ApproximatePercentile and Percentile
### What changes were proposed in this pull request?
accuracyExpression can accept Long which may cause overflow error.
accuracyExpression can accept fractions which are implicitly floored.
accuracyExpression can accept null which is implicitly changed to 0.
percentageExpression can accept null but cause MatchError.
percentageExpression can accept ArrayType(_, nullable=true) in which the nulls are implicitly changed to zeros.

##### cases
```sql
select percentile_approx(10.0, 0.5, 2147483648); -- overflow and fail
select percentile_approx(10.0, 0.5, 4294967297); -- overflow but success
select percentile_approx(10.0, 0.5, null); -- null cast to 0
select percentile_approx(10.0, 0.5, 1.2); -- 1.2 cast to 1
select percentile_approx(10.0, null, 1); -- scala.MatchError
select percentile_approx(10.0, array(0.2, 0.4, null), 1); -- null cast to zero.
```

##### behavior before

```sql
+select percentile_approx(10.0, 0.5, 2147483648)
+org.apache.spark.sql.AnalysisException
+cannot resolve 'percentile_approx(10.0BD, CAST(0.5BD AS DOUBLE), CAST(2147483648L AS INT))' due to data type mismatch: The accuracy provided must be a positive integer literal (current value = -2147483648); line 1 pos 7
+
+select percentile_approx(10.0, 0.5, 4294967297)
+10.0
+

+select percentile_approx(10.0, 0.5, null)
+org.apache.spark.sql.AnalysisException
+cannot resolve 'percentile_approx(10.0BD, CAST(0.5BD AS DOUBLE), CAST(NULL AS INT))' due to data type mismatch: The accuracy provided must be a positive integer literal (current value = 0); line 1 pos 7
+
+select percentile_approx(10.0, 0.5, 1.2)
+10.0
+
+select percentile_approx(10.0, null, 1)
+scala.MatchError
+null
+
+
+select percentile_approx(10.0, array(0.2, 0.4, null), 1)
+[10.0,10.0,10.0]
```

##### behavior after

```sql

+select percentile_approx(10.0, 0.5, 2147483648)
+10.0
+
+select percentile_approx(10.0, 0.5, 4294967297)
+10.0
+
+select percentile_approx(10.0, 0.5, null)
+org.apache.spark.sql.AnalysisException
+cannot resolve 'percentile_approx(10.0BD, 0.5BD, NULL)' due to data type mismatch: argument 3 requires integral type, however, 'NULL' is of null type.; line 1 pos 7
+
+select percentile_approx(10.0, 0.5, 1.2)
+org.apache.spark.sql.AnalysisException
+cannot resolve 'percentile_approx(10.0BD, 0.5BD, 1.2BD)' due to data type mismatch: argument 3 requires integral type, however, '1.2BD' is of decimal(2,1) type.; line 1 pos 7
+

+select percentile_approx(10.0, null, 1)
+java.lang.IllegalArgumentException
+The value of percentage must be be between 0.0 and 1.0, but got null
+
+select percentile_approx(10.0, array(0.2, 0.4, null), 1)
+java.lang.IllegalArgumentException
+Each value of the percentage array must be be between 0.0 and 1.0, but got [0.2,0.4,null]
```

### Why are the changes needed?

bug fix

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

yes, fix some improper usages of percentile_approx as cases list above

### How was this patch tested?

add ut

Closes #26905 from yaooqinn/SPARK-30266.

Authored-by: Kent Yao <yaooqinn@hotmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2019-12-25 20:03:26 +08:00
manuzhang ef6f9e9668 [SPARK-30331][SQL] Set isFinalPlan to true before posting the final AdaptiveSparkPlan event
### What changes were proposed in this pull request?

Set `isFinalPlan=true` before posting the final AdaptiveSparkPlan event (`SparkListenerSQLAdaptiveExecutionUpdate`)

### Why are the changes needed?

Otherwise, any attempt to listen on the final event by pattern matching `isFinalPlan=true` would fail

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

No.

### How was this patch tested?

All tests in `AdaptiveQueryExecSuite` are exteneded with a verification that a `SparkListenerSQLAdaptiveExecutionUpdate` event with `isFinalPlan=True` exists

Closes #26983 from manuzhang/spark-30331.

Authored-by: manuzhang <owenzhang1990@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2019-12-25 19:08:24 +08:00
Pavithra Ramachandran 57ca95246c [SPARK-29505][SQL] Make DESC EXTENDED <table name> <column name> case insensitive
### What changes were proposed in this pull request?
While querying using **desc** , if column name is not entered exactly as per the column name given during the table creation, the colstats are wrong. fetching of col stats has been made case insensitive.

### Why are the changes needed?
functions like **analyze**, etc support case insensitive retrieval of column data.

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

### How was this patch tested?
<!--
Unit test has been rewritten and tested.

Closes #26927 from PavithraRamachandran/desc_caseinsensitive.

Authored-by: Pavithra Ramachandran <pavi.rams@gmail.com>
Signed-off-by: Takeshi Yamamuro <yamamuro@apache.org>
2019-12-25 08:57:34 +09:00
wangguangxin.cn 640dcc435b [SPARK-28332][SQL] Reserve init value -1 only when do min max statistics in SQLMetrics
### What changes were proposed in this pull request?
This is an alternative solution to https://github.com/apache/spark/pull/25095.
SQLMetrics use -1 as init value as a work around for [SPARK-11013](https://issues.apache.org/jira/browse/SPARK-11013.) However, it may bring out some badcases as https://github.com/apache/spark/pull/26726 reporting. In fact, we only need to reserve -1 when doing min max statistics in `SQLMetrics.stringValue` so that we can filter out those not initialized accumulators.

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

### How was this patch tested?
Existing UTs

Closes #26899 from WangGuangxin/sqlmetrics.

Authored-by: wangguangxin.cn <wangguangxin.cn@bytedance.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2019-12-23 13:13:35 +08:00
HyukjinKwon e5abbab0ed [SPARK-30128][DOCS][PYTHON][SQL] Document/promote 'recursiveFileLookup' and 'pathGlobFilter' in file sources 'mergeSchema' in ORC
### What changes were proposed in this pull request?

This PR adds and exposes the options, 'recursiveFileLookup' and 'pathGlobFilter' in file sources 'mergeSchema' in ORC, into documentation.

- `recursiveFileLookup` at file sources: https://github.com/apache/spark/pull/24830 ([SPARK-27627](https://issues.apache.org/jira/browse/SPARK-27627))
- `pathGlobFilter` at file sources: https://github.com/apache/spark/pull/24518 ([SPARK-27990](https://issues.apache.org/jira/browse/SPARK-27990))
- `mergeSchema` at ORC: https://github.com/apache/spark/pull/24043 ([SPARK-11412](https://issues.apache.org/jira/browse/SPARK-11412))

**Note that** `timeZone` option was not moved from `DataFrameReader.options` as I assume it will likely affect other datasources as well once DSv2 is complete.

### Why are the changes needed?

To document available options in sources properly.

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

In PySpark, `pathGlobFilter` can be set via `DataFrameReader.(text|orc|parquet|json|csv)` and `DataStreamReader.(text|orc|parquet|json|csv)`.

### How was this patch tested?

Manually built the doc and checked the output. Option setting in PySpark is rather a logical change. I manually tested one only:

```bash
$ ls -al tmp
...
-rw-r--r--   1 hyukjin.kwon  staff     3 Dec 20 12:19 aa
-rw-r--r--   1 hyukjin.kwon  staff     3 Dec 20 12:19 ab
-rw-r--r--   1 hyukjin.kwon  staff     3 Dec 20 12:19 ac
-rw-r--r--   1 hyukjin.kwon  staff     3 Dec 20 12:19 cc
```

```python
>>> spark.read.text("tmp", pathGlobFilter="*c").show()
```

```
+-----+
|value|
+-----+
|   ac|
|   cc|
+-----+
```

Closes #26958 from HyukjinKwon/doc-followup.

Authored-by: HyukjinKwon <gurwls223@apache.org>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2019-12-23 09:57:42 +09:00
gengjiaan a38bf7e051 [SPARK-28083][SQL][TEST][FOLLOW-UP] Enable LIKE ... ESCAPE test cases
### What changes were proposed in this pull request?
This PR is a follow-up to https://github.com/apache/spark/pull/25001

### Why are the changes needed?
No

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

### How was this patch tested?
Pass the Jenkins with the newly update test files.

Closes #26949 from beliefer/uncomment-like-escape-tests.

Authored-by: gengjiaan <gengjiaan@360.cn>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2019-12-21 14:40:07 -08:00
Kazuaki Ishizaki f31d9a629b [MINOR][DOC][SQL][CORE] Fix typo in document and comments
### What changes were proposed in this pull request?

Fixed typo in `docs` directory and in other directories

1. Find typo in `docs` and apply fixes to files in all directories
2. Fix `the the` -> `the`

### Why are the changes needed?

Better readability of documents

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

No

### How was this patch tested?

No test needed

Closes #26976 from kiszk/typo_20191221.

Authored-by: Kazuaki Ishizaki <ishizaki@jp.ibm.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2019-12-21 14:08:58 -08:00
Wenchen Fan cd84400271 [SPARK-29906][SQL][FOLLOWUP] Update the final plan in UI for AQE
### What changes were proposed in this pull request?

a followup of https://github.com/apache/spark/pull/26576, which mistakenly removes the UI update of the final plan.

### Why are the changes needed?

fix mistake.

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

no

### How was this patch tested?

existing tests

Closes #26968 from cloud-fan/fix.

Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Dongjoon Hyun <dhyun@apple.com>
2019-12-21 09:56:15 -08:00
Sean Owen 7dff3b125d [SPARK-30272][SQL][CORE] Remove usage of Guava that breaks in 27; replace with workalikes
### What changes were proposed in this pull request?

Remove usages of Guava that no longer work in Guava 27, and replace with workalikes. I'll comment on key types of changes below.

### Why are the changes needed?

Hadoop 3.2.1 uses Guava 27, so this helps us avoid problems running on Hadoop 3.2.1+ and generally lowers our exposure to Guava.

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

Should not be, but see notes below on hash codes and toString.

### How was this patch tested?

Existing tests will verify whether these changes break anything for Guava 14.
I manually built with an updated version and it compiles with Guava 27; tests running manually locally now.

Closes #26911 from srowen/SPARK-30272.

Authored-by: Sean Owen <srowen@gmail.com>
Signed-off-by: Sean Owen <srowen@gmail.com>
2019-12-20 08:55:04 -06:00
Prakhar Jain 07b04c4c72 [SPARK-29938][SQL] Add batching support in Alter table add partition flow
### What changes were proposed in this pull request?
Add batching support in Alter table add partition flow. Also calculate new partition sizes faster by doing listing in parallel.

### Why are the changes needed?
This PR split the the single createPartitions() call AlterTableAddPartition flow into smaller batches, which could prevent
 - SocketTimeoutException: Adding thousand of partitions in Hive metastore itself takes lot of time. Because of this hive client fails with SocketTimeoutException.

- Hive metastore from OOM (caused by millions of partitions).

It will also try to gather stats (total size of all files in all new partitions) faster by parallely listing the new partition paths.

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

### How was this patch tested?
Added UT.
Also tested on a cluster in HDI with 15000 partitions with remote metastore server. Without batching - operation fails with SocketTimeoutException, With batching it finishes in 25 mins.

Closes #26569 from prakharjain09/add_partition_batching_r1.

Authored-by: Prakhar Jain <prakharjain09@gmail.com>
Signed-off-by: Sean Owen <srowen@gmail.com>
2019-12-20 08:54:14 -06:00
Niranjan Artal 0d2ef3ae2b [SPARK-30300][SQL][WEB-UI] Fix updating the UI max value string when driver updates the same metric id as the tasks
### What changes were proposed in this pull request?

In this PR, For a given metrics id we are checking if the driver side accumulator's value is greater than max of all stages value. If it's true, then we are removing that entry from the Hashmap. By doing this, for this metrics, "driver" would be displayed on the UI(As the driver would have the maximum value)

### Why are the changes needed?

This PR fixes https://issues.apache.org/jira/browse/SPARK-30300. Currently driver's metric value is not compared while caluculating the max.

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

For the metrics where driver's value is greater than max of all stages, this is the change.
Previous : (min, median, max (stageId 0( attemptId 1): taskId 2))
Now:   (min, median, max (driver))

### How was this patch tested?

Ran unit tests.

Closes #26941 from nartal1/SPARK-30300.

Authored-by: Niranjan Artal <nartal@nvidia.com>
Signed-off-by: Thomas Graves <tgraves@apache.org>
2019-12-20 07:29:28 -06:00
Kent Yao 12249fcdc7 [SPARK-30301][SQL] Fix wrong results when datetimes as fields of complex types
### What changes were proposed in this pull request?

When date and timestamp values are fields of arrays, maps, etc, we convert them to hive string using `toString`. This makes the result wrong before the default transition ’1582-10-15‘.

https://bugs.openjdk.java.net/browse/JDK-8061577?focusedCommentId=13566712&page=com.atlassian.jira.plugin.system.issuetabpanels%3Acomment-tabpanel#comment-13566712

cases to reproduce:

```sql
+-- !query 47
+select array(cast('1582-10-13' as date), date '1582-10-14', date '1582-10-15', null)
+-- !query 47 schema
+struct<array(CAST(1582-10-13 AS DATE), DATE '1582-10-14', DATE '1582-10-15', CAST(NULL AS DATE)):array<date>>
+-- !query 47 output
+[1582-10-03,1582-10-04,1582-10-15,null]
+
+
+-- !query 48
+select cast('1582-10-13' as date), date '1582-10-14', date '1582-10-15'
+-- !query 48 schema
+struct<CAST(1582-10-13 AS DATE):date,DATE '1582-10-14':date,DATE '1582-10-15':date>
+-- !query 48 output
+1582-10-13     1582-10-14      1582-10-15
```

other refencences
https://github.com/h2database/h2database/issues/831
### Why are the changes needed?

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

yes, complex types containing datetimes in `spark-sql `script and thrift server can result same as self-contained spark app or `spark-shell` script
### How was this patch tested?

add uts

Closes #26942 from yaooqinn/SPARK-30301.

Authored-by: Kent Yao <yaooqinn@hotmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2019-12-20 19:21:43 +08:00
jiake a296d15235 [SPARK-30291] catch the exception when doing materialize in AQE
### What changes were proposed in this pull request?
AQE need catch the exception when doing materialize. And then user can get more information about the exception when enable AQE.

### Why are the changes needed?
provide more cause about the exception when doing materialize

### Does this PR introduce any user-facing change?
Before this PR,  the error in the added unit test is
java.lang.RuntimeException: Invalid bucket file file:///${SPARK_HOME}/assembly/spark-warehouse/org.apache.spark.sql.execution.adaptive.AdaptiveQueryExecSuite/bucketed_table/part-00000-3551343c-d003-4ada-82c8-45c712a72efe-c000.snappy.parquet

After this PR, the error in the added unit test is:
org.apache.spark.SparkException: Adaptive execution failed due to stage materialization failures.

### How was this patch tested?
Add a new ut

Closes #26931 from JkSelf/catchMoreException.

Authored-by: jiake <ke.a.jia@intel.com>
Signed-off-by: Xiao Li <gatorsmile@gmail.com>
2019-12-20 00:23:26 -08:00
Wenchen Fan 18e8d1d5b2 [SPARK-30307][SQL] remove ReusedQueryStageExec
### What changes were proposed in this pull request?

When we reuse exchanges in AQE, what we produce is `ReuseQueryStage(QueryStage(Exchange))`. This PR changes it to `QueryStage(ReusedExchange(Exchange))`.

This PR also fixes an issue in `LocalShuffleReaderExec.outputPartitioning`. We can only preserve the partitioning if we read one mapper per task.

### Why are the changes needed?

`QueryStage` is light-weighted and we don't need to reuse its instance. What we really care is to reuse the exchange instance, which has heavy states (e.g. broadcasted valued, submitted map stage).

To simplify the framework, we should use the existing `ReusedExchange` node to do the reuse work, instead of creating a new node.

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

no

### How was this patch tested?

existing tests

Closes #26952 from cloud-fan/aqe.

Authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Xiao Li <gatorsmile@gmail.com>
2019-12-19 20:56:06 -08:00
Aman Omer 726f6d3e3c [SPARK-30184][SQL] Implement a helper method for aliasing functions
### What changes were proposed in this pull request?
This PR is to use `expressionWithAlias` for remaining functions for which alias name can be used. Remaining functions are:
`Average, First, Last, ApproximatePercentile, StddevSamp, VarianceSamp`

PR https://github.com/apache/spark/pull/26712 introduced `expressionWithAlias`
### Why are the changes needed?
Error message is wrong when alias name is used for above mentioned functions.
### Does this PR introduce any user-facing change?
No
### How was this patch tested?
Manually

Closes #26808 from amanomer/fncAlias.

Lead-authored-by: Aman Omer <amanomer1996@gmail.com>
Co-authored-by: Aman Omer <40591404+amanomer@users.noreply.github.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2019-12-20 12:49:16 +08:00
Jungtaek Lim (HeartSaVioR) ab87bfd087 [SPARK-29450][SS] Measure the number of output rows for streaming aggregation with append mode
### What changes were proposed in this pull request?

This patch addresses missing metric, the number of output rows for streaming aggregation with append mode. Other modes are correctly measuring it.

### Why are the changes needed?

Without the patch, the value for such metric is always 0.

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

No.

### How was this patch tested?

Unit test added. Also manually tested with below query:

> query

```
import spark.implicits._

spark.conf.set("spark.sql.shuffle.partitions", "5")

val df = spark.readStream
  .format("rate")
  .option("rowsPerSecond", 1000)
  .load()
  .withWatermark("timestamp", "5 seconds")
  .selectExpr("timestamp", "mod(value, 100) as mod", "value")
  .groupBy(window($"timestamp", "10 seconds"), $"mod")
  .agg(max("value").as("max_value"), min("value").as("min_value"), avg("value").as("avg_value"))

val query = df
  .writeStream
  .format("memory")
  .option("queryName", "test")
  .outputMode("append")
  .start()

query.awaitTermination()
```

> before the patch

![screenshot-before-SPARK-29450](https://user-images.githubusercontent.com/1317309/69023217-58d7bc80-0a01-11ea-8cac-40f1cced6d16.png)

> after the patch

![screenshot-after-SPARK-29450](https://user-images.githubusercontent.com/1317309/69023221-5c6b4380-0a01-11ea-8a66-7bf1b7d09fc7.png)

Closes #26104 from HeartSaVioR/SPARK-29450.

Authored-by: Jungtaek Lim (HeartSaVioR) <kabhwan.opensource@gmail.com>
Signed-off-by: HyukjinKwon <gurwls223@apache.org>
2019-12-19 18:20:41 +09:00
Xingbo Jiang 2af5237fe8 [SPARK-29918][SQL][FOLLOWUP][TEST] Fix arrayOffset in RecordBinaryComparatorSuite
### What changes were proposed in this pull request?

As mentioned in https://github.com/apache/spark/pull/26548#pullrequestreview-334345333, some test cases in `RecordBinaryComparatorSuite` use a fixed arrayOffset when writing to long arrays, this  could lead to weird stuff including crashing with a SIGSEGV.

This PR fix the problem by computing the arrayOffset based on `Platform.LONG_ARRAY_OFFSET`.

### How was this patch tested?
Tested locally. Previously, when we try to add `System.gc()` between write into long array and compare by RecordBinaryComparator, there is a chance to hit JVM crash with SIGSEGV like:
```
#
# A fatal error has been detected by the Java Runtime Environment:
#
#  SIGSEGV (0xb) at pc=0x00007efc66970bcb, pid=11831, tid=0x00007efc0f9f9700
#
# JRE version: OpenJDK Runtime Environment (8.0_222-b10) (build 1.8.0_222-8u222-b10-1ubuntu1~16.04.1-b10)
# Java VM: OpenJDK 64-Bit Server VM (25.222-b10 mixed mode linux-amd64 compressed oops)
# Problematic frame:
# V  [libjvm.so+0x5fbbcb]
#
# Core dump written. Default location: /home/jenkins/workspace/sql/core/core or core.11831
#
# An error report file with more information is saved as:
# /home/jenkins/workspace/sql/core/hs_err_pid11831.log
#
# If you would like to submit a bug report, please visit:
#   http://bugreport.java.com/bugreport/crash.jsp
#
```
After the fix those test cases didn't crash the JVM anymore.

Closes #26939 from jiangxb1987/rbc.

Authored-by: Xingbo Jiang <xingbo.jiang@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2019-12-19 17:01:40 +08:00