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3574 commits

Author SHA1 Message Date
jiangxingbo f85f29608d [SPARK-19024][SQL] Implement new approach to write a permanent view
## What changes were proposed in this pull request?

On CREATE/ALTER a view, it's no longer needed to generate a SQL text string from the LogicalPlan, instead we store the SQL query text、the output column names of the query plan, and current database to CatalogTable. Permanent views created by this approach can be resolved by current view resolution approach.

The main advantage includes:
1. If you update an underlying view, the current view also gets updated;
2. That gives us a change to get ride of SQL generation for operators.

Major changes of this PR:
1. Generate the view-specific properties(e.g. view default database, view query output column names) during permanent view creation and store them as properties in the CatalogTable;
2. Update the commands `CreateViewCommand` and `AlterViewAsCommand`, get rid of SQL generation from them.

## How was this patch tested?
Existing tests.

Author: jiangxingbo <jiangxb1987@gmail.com>

Closes #16613 from jiangxb1987/view-write-path.
2017-01-18 19:13:01 +08:00
Wenchen Fan 4494cd9716 [SPARK-18243][SQL] Port Hive writing to use FileFormat interface
## What changes were proposed in this pull request?

Inserting data into Hive tables has its own implementation that is distinct from data sources: `InsertIntoHiveTable`, `SparkHiveWriterContainer` and `SparkHiveDynamicPartitionWriterContainer`.

Note that one other major difference is that data source tables write directly to the final destination without using some staging directory, and then Spark itself adds the partitions/tables to the catalog. Hive tables actually write to some staging directory, and then call Hive metastore's loadPartition/loadTable function to load those data in. So we still need to keep `InsertIntoHiveTable` to put this special logic. In the future, we should think of writing to the hive table location directly, so that we don't need to call `loadTable`/`loadPartition` at the end and remove `InsertIntoHiveTable`.

This PR removes `SparkHiveWriterContainer` and `SparkHiveDynamicPartitionWriterContainer`, and create a `HiveFileFormat` to implement the write logic. In the future, we should also implement the read logic in `HiveFileFormat`.

## How was this patch tested?

existing tests

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16517 from cloud-fan/insert-hive.
2017-01-17 23:37:59 -08:00
Bogdan Raducanu 2992a0e79e [SPARK-13721][SQL] Support outer generators in DataFrame API
## What changes were proposed in this pull request?

Added outer_explode, outer_posexplode, outer_inline functions and expressions.
Some bug fixing in GenerateExec.scala for CollectionGenerator. Previously it was not correctly handling the case of outer with empty collections, only with nulls.

## How was this patch tested?

New tests added to GeneratorFunctionSuite

Author: Bogdan Raducanu <bogdan.rdc@gmail.com>

Closes #16608 from bogdanrdc/SPARK-13721.
2017-01-17 15:39:24 -08:00
Reynold Xin 83dff87ded [SPARK-18917][SQL] Remove schema check in appending data
## What changes were proposed in this pull request?
In append mode, we check whether the schema of the write is compatible with the schema of the existing data. It can be a significant performance issue in cloud environment to find the existing schema for files. This patch removes the check.

Note that for catalog tables, we always do the check, as discussed in https://github.com/apache/spark/pull/16339#discussion_r96208357

## How was this patch tested?
N/A

Closes #16339.

Author: Reynold Xin <rxin@databricks.com>

Closes #16622 from rxin/SPARK-18917.
2017-01-17 15:06:28 -08:00
Shixiong Zhu a83accfcfd [SPARK-19065][SQL] Don't inherit expression id in dropDuplicates
## What changes were proposed in this pull request?

`dropDuplicates` will create an Alias using the same exprId, so `StreamExecution` should also replace Alias if necessary.

## How was this patch tested?

test("SPARK-19065: dropDuplicates should not create expressions using the same id")

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16564 from zsxwing/SPARK-19065.
2017-01-18 01:57:12 +08:00
hyukjinkwon 6c00c069e3
[SPARK-3249][DOC] Fix links in ScalaDoc that cause warning messages in sbt/sbt unidoc
## What changes were proposed in this pull request?

This PR proposes to fix ambiguous link warnings by simply making them as code blocks for both javadoc and scaladoc.

```
[warn] .../spark/core/src/main/scala/org/apache/spark/Accumulator.scala:20: The link target "SparkContext#accumulator" is ambiguous. Several members fit the target:
[warn] .../spark/mllib/src/main/scala/org/apache/spark/mllib/optimization/GradientDescent.scala:281: The link target "runMiniBatchSGD" is ambiguous. Several members fit the target:
[warn] .../spark/mllib/src/main/scala/org/apache/spark/mllib/fpm/AssociationRules.scala:83: The link target "run" is ambiguous. Several members fit the target:
...
```

This PR also fixes javadoc8 break as below:

```
[error] .../spark/sql/core/target/java/org/apache/spark/sql/LowPrioritySQLImplicits.java:7: error: reference not found
[error]  * newProductEncoder - to disambiguate for {link List}s which are both {link Seq} and {link Product}
[error]                                                   ^
[error] .../spark/sql/core/target/java/org/apache/spark/sql/LowPrioritySQLImplicits.java:7: error: reference not found
[error]  * newProductEncoder - to disambiguate for {link List}s which are both {link Seq} and {link Product}
[error]                                                                                ^
[error] .../spark/sql/core/target/java/org/apache/spark/sql/LowPrioritySQLImplicits.java:7: error: reference not found
[error]  * newProductEncoder - to disambiguate for {link List}s which are both {link Seq} and {link Product}
[error]                                                                                                ^
[info] 3 errors
```

## How was this patch tested?

Manually via `sbt unidoc > output.txt` and the checked it via `cat output.txt | grep ambiguous`

and `sbt unidoc | grep error`.

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #16604 from HyukjinKwon/SPARK-3249.
2017-01-17 12:28:15 +00:00
Nick Lavers 0019005a2d
[SPARK-19219][SQL] Fix Parquet log output defaults
## What changes were proposed in this pull request?

Changing the default parquet logging levels to reflect the changes made in PR [#15538](https://github.com/apache/spark/pull/15538), in order to prevent the flood of log messages by default.

## How was this patch tested?

Default log output when reading from parquet 1.6 files was compared with and without this change. The change eliminates the extraneous logging and makes the output readable.

Author: Nick Lavers <nick.lavers@videoamp.com>

Closes #16580 from nicklavers/spark-19219-set_default_parquet_log_level.
2017-01-17 12:14:38 +00:00
Wenchen Fan a774bca05e [SPARK-19240][SQL][TEST] add test for setting location for managed table
## What changes were proposed in this pull request?

SET LOCATION can also work on managed table(or table created without custom path), the behavior is a little weird, but as we have already supported it, we should add a test to explicitly show the behavior.

## How was this patch tested?

N/A

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16597 from cloud-fan/set-location.
2017-01-17 19:42:02 +08:00
Wenchen Fan 18ee55dd5d [SPARK-19148][SQL] do not expose the external table concept in Catalog
## What changes were proposed in this pull request?

In https://github.com/apache/spark/pull/16296 , we reached a consensus that we should hide the external/managed table concept to users and only expose custom table path.

This PR renames `Catalog.createExternalTable` to `createTable`(still keep the old versions for backward compatibility), and only set the table type to EXTERNAL if `path` is specified in options.

## How was this patch tested?

new tests in `CatalogSuite`

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16528 from cloud-fan/create-table.
2017-01-17 12:54:50 +08:00
Liang-Chi Hsieh 61e48f52d1 [SPARK-19082][SQL] Make ignoreCorruptFiles work for Parquet
## What changes were proposed in this pull request?

We have a config `spark.sql.files.ignoreCorruptFiles` which can be used to ignore corrupt files when reading files in SQL. Currently the `ignoreCorruptFiles` config has two issues and can't work for Parquet:

1. We only ignore corrupt files in `FileScanRDD` . Actually, we begin to read those files as early as inferring data schema from the files. For corrupt files, we can't read the schema and fail the program. A related issue reported at http://apache-spark-developers-list.1001551.n3.nabble.com/Skip-Corrupted-Parquet-blocks-footer-tc20418.html
2. In `FileScanRDD`, we assume that we only begin to read the files when starting to consume the iterator. However, it is possibly the files are read before that. In this case, `ignoreCorruptFiles` config doesn't work too.

This patch targets Parquet datasource. If this direction is ok, we can address the same issue for other datasources like Orc.

Two main changes in this patch:

1. Replace `ParquetFileReader.readAllFootersInParallel` by implementing the logic to read footers in multi-threaded manner

    We can't ignore corrupt files if we use `ParquetFileReader.readAllFootersInParallel`. So this patch implements the logic to do the similar thing in `readParquetFootersInParallel`.

2. In `FileScanRDD`, we need to ignore corrupt file too when we call `readFunction` to return iterator.

One thing to notice is:

We read schema from Parquet file's footer. The method to read footer `ParquetFileReader.readFooter` throws `RuntimeException`, instead of `IOException`, if it can't successfully read the footer. Please check out df9d8e4154/parquet-hadoop/src/main/java/org/apache/parquet/hadoop/ParquetFileReader.java (L470). So this patch catches `RuntimeException`.  One concern is that it might also shadow other runtime exceptions other than reading corrupt files.

## How was this patch tested?

Jenkins tests.

Please review http://spark.apache.org/contributing.html before opening a pull request.

Author: Liang-Chi Hsieh <viirya@gmail.com>

Closes #16474 from viirya/fix-ignorecorrupted-parquet-files.
2017-01-16 15:26:41 +08:00
gatorsmile de62ddf7ff [SPARK-19120] Refresh Metadata Cache After Loading Hive Tables
### What changes were proposed in this pull request?
```Scala
        sql("CREATE TABLE tab (a STRING) STORED AS PARQUET")

        // This table fetch is to fill the cache with zero leaf files
        spark.table("tab").show()

        sql(
          s"""
             |LOAD DATA LOCAL INPATH '$newPartitionDir' OVERWRITE
             |INTO TABLE tab
           """.stripMargin)

        spark.table("tab").show()
```

In the above example, the returned result is empty after table loading. The metadata cache could be out of dated after loading new data into the table, because loading/inserting does not update the cache. So far, the metadata cache is only used for data source tables. Thus, for Hive serde tables, only `parquet` and `orc` formats are facing such issues, because the Hive serde tables in the format of  parquet/orc could be converted to data source tables when `spark.sql.hive.convertMetastoreParquet`/`spark.sql.hive.convertMetastoreOrc` is on.

This PR is to refresh the metadata cache after processing the `LOAD DATA` command.

In addition, Spark SQL does not convert **partitioned** Hive tables (orc/parquet) to data source tables in the write path, but the read path is using the metadata cache for both **partitioned** and non-partitioned Hive tables (orc/parquet). That means, writing the partitioned parquet/orc tables still use `InsertIntoHiveTable`, instead of `InsertIntoHadoopFsRelationCommand`. To avoid reading the out-of-dated cache, `InsertIntoHiveTable` needs to refresh the metadata cache for partitioned tables. Note, it does not need to refresh the cache for non-partitioned parquet/orc tables, because it does not call `InsertIntoHiveTable` at all. Based on the comments, this PR will keep the existing logics unchanged. That means, we always refresh the table no matter whether the table is partitioned or not.

### How was this patch tested?
Added test cases in parquetSuites.scala

Author: gatorsmile <gatorsmile@gmail.com>

Closes #16500 from gatorsmile/refreshInsertIntoHiveTable.
2017-01-15 20:40:44 +08:00
Tsuyoshi Ozawa 9112f31bb8
[SPARK-19207][SQL] LocalSparkSession should use Slf4JLoggerFactory.INSTANCE
## What changes were proposed in this pull request?

Using Slf4JLoggerFactory.INSTANCE instead of creating Slf4JLoggerFactory's object with constructor. It's deprecated.

## How was this patch tested?

With running StateStoreRDDSuite.

Author: Tsuyoshi Ozawa <ozawa@apache.org>

Closes #16570 from oza/SPARK-19207.
2017-01-15 11:11:21 +00:00
windpiger 8942353905 [SPARK-19151][SQL] DataFrameWriter.saveAsTable support hive overwrite
## What changes were proposed in this pull request?

After [SPARK-19107](https://issues.apache.org/jira/browse/SPARK-19107), we now can treat hive as a data source and create hive tables with DataFrameWriter and Catalog. However, the support is not completed, there are still some cases we do not support.

This PR implement:
DataFrameWriter.saveAsTable work with hive format with overwrite mode

## How was this patch tested?
unit test added

Author: windpiger <songjun@outlook.com>

Closes #16549 from windpiger/saveAsTableWithHiveOverwrite.
2017-01-14 10:53:33 -08:00
Yucai Yu ad0dadaa25 [SPARK-19180] [SQL] the offset of short should be 2 in OffHeapColumn
## What changes were proposed in this pull request?

the offset of short is 4 in OffHeapColumnVector's putShorts, but actually it should be 2.

## How was this patch tested?

unit test

Author: Yucai Yu <yucai.yu@intel.com>

Closes #16555 from yucai/offheap_short.
2017-01-13 13:40:53 -08:00
Andrew Ash b040cef2ed Fix missing close-parens for In filter's toString
Otherwise the open parentheses isn't closed in query plan descriptions of batch scans.

    PushedFilters: [In(COL_A, [1,2,4,6,10,16,219,815], IsNotNull(COL_B), ...

Author: Andrew Ash <andrew@andrewash.com>

Closes #16558 from ash211/patch-9.
2017-01-12 23:14:07 -08:00
Wenchen Fan 6b34e745bb [SPARK-19178][SQL] convert string of large numbers to int should return null
## What changes were proposed in this pull request?

When we convert a string to integral, we will convert that string to `decimal(20, 0)` first, so that we can turn a string with decimal format to truncated integral, e.g. `CAST('1.2' AS int)` will return `1`.

However, this brings problems when we convert a string with large numbers to integral, e.g. `CAST('1234567890123' AS int)` will return `1912276171`, while Hive returns null as we expected.

This is a long standing bug(seems it was there the first day Spark SQL was created), this PR fixes this bug by adding the native support to convert `UTF8String` to integral.

## How was this patch tested?

new regression tests

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16550 from cloud-fan/string-to-int.
2017-01-12 22:52:34 -08:00
gatorsmile 3356b8b6a9 [SPARK-19092][SQL] Save() API of DataFrameWriter should not scan all the saved files
### What changes were proposed in this pull request?
`DataFrameWriter`'s [save() API](5d38f09f47/sql/core/src/main/scala/org/apache/spark/sql/DataFrameWriter.scala (L207)) is performing a unnecessary full filesystem scan for the saved files. The save() API is the most basic/core API in `DataFrameWriter`. We should avoid it.

The related PR: https://github.com/apache/spark/pull/16090

### How was this patch tested?
Updated the existing test cases.

Author: gatorsmile <gatorsmile@gmail.com>

Closes #16481 from gatorsmile/saveFileScan.
2017-01-13 13:05:53 +08:00
Takeshi YAMAMURO 5585ed93b0 [SPARK-17237][SQL] Remove backticks in a pivot result schema
## What changes were proposed in this pull request?
Pivoting adds backticks (e.g. 3_count(\`c\`)) in column names and, in some cases,
thes causes analysis exceptions  like;
```
scala> val df = Seq((2, 3, 4), (3, 4, 5)).toDF("a", "x", "y")
scala> df.groupBy("a").pivot("x").agg(count("y"), avg("y")).na.fill(0)
org.apache.spark.sql.AnalysisException: syntax error in attribute name: `3_count(`y`)`;
  at org.apache.spark.sql.catalyst.analysis.UnresolvedAttribute$.e$1(unresolved.scala:134)
  at org.apache.spark.sql.catalyst.analysis.UnresolvedAttribute$.parseAttributeName(unresolved.scala:144)
...
```
So, this pr proposes to remove these backticks from column names.

## How was this patch tested?
Added a test in `DataFrameAggregateSuite`.

Author: Takeshi YAMAMURO <linguin.m.s@gmail.com>

Closes #14812 from maropu/SPARK-17237.
2017-01-12 09:46:53 -08:00
Wenchen Fan 871d266649 [SPARK-18969][SQL] Support grouping by nondeterministic expressions
## What changes were proposed in this pull request?

Currently nondeterministic expressions are allowed in `Aggregate`(see the [comment](https://github.com/apache/spark/blob/v2.0.2/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/CheckAnalysis.scala#L249-L251)), but the `PullOutNondeterministic` analyzer rule failed to handle `Aggregate`, this PR fixes it.

close https://github.com/apache/spark/pull/16379

There is still one remaining issue: `SELECT a + rand() FROM t GROUP BY a + rand()` is not allowed, because the 2 `rand()` are different(we generate random seed as the default seed for `rand()`). https://issues.apache.org/jira/browse/SPARK-19035 is tracking this issue.

## How was this patch tested?

a new test suite

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16404 from cloud-fan/groupby.
2017-01-12 20:21:04 +08:00
Eric Liang c71b25481a [SPARK-19183][SQL] Add deleteWithJob hook to internal commit protocol API
## What changes were proposed in this pull request?

Currently in SQL we implement overwrites by calling fs.delete() directly on the original data. This is not ideal since we the original files end up deleted even if the job aborts. We should extend the commit protocol to allow file overwrites to be managed as well.

## How was this patch tested?

Existing tests. I also fixed a bunch of tests that were depending on the commit protocol implementation being set to the legacy mapreduce one.

cc rxin cloud-fan

Author: Eric Liang <ekl@databricks.com>
Author: Eric Liang <ekhliang@gmail.com>

Closes #16554 from ericl/add-delete-protocol.
2017-01-12 17:45:55 +08:00
hyukjinkwon 24100f162d [SPARK-16848][SQL] Check schema validation for user-specified schema in jdbc and table APIs
## What changes were proposed in this pull request?

This PR proposes to throw an exception for both jdbc APIs when user specified schemas are not allowed or useless.

**DataFrameReader.jdbc(...)**

``` scala
spark.read.schema(StructType(Nil)).jdbc(...)
```

**DataFrameReader.table(...)**

```scala
spark.read.schema(StructType(Nil)).table("usrdb.test")
```

## How was this patch tested?

Unit test in `JDBCSuite` and `DataFrameReaderWriterSuite`.

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #14451 from HyukjinKwon/SPARK-16848.
2017-01-11 21:03:48 -08:00
jiangxingbo 30a07071f0 [SPARK-18801][SQL] Support resolve a nested view
## What changes were proposed in this pull request?

We should be able to resolve a nested view. The main advantage is that if you update an underlying view, the current view also gets updated.
The new approach should be compatible with older versions of SPARK/HIVE, that means:
1. The new approach should be able to resolve the views that created by older versions of SPARK/HIVE;
2. The new approach should be able to resolve the views that are currently supported by SPARK SQL.

The new approach mainly brings in the following changes:
1. Add a new operator called `View` to keep track of the CatalogTable that describes the view, and the output attributes as well as the child of the view;
2. Update the `ResolveRelations` rule to resolve the relations and views, note that a nested view should be resolved correctly;
3. Add `viewDefaultDatabase` variable to `CatalogTable` to keep track of the default database name used to resolve a view, if the `CatalogTable` is not a view, then the variable should be `None`;
4. Add `AnalysisContext` to enable us to still support a view created with CTE/Windows query;
5. Enables the view support without enabling Hive support (i.e., enableHiveSupport);
6. Fix a weird behavior: the result of a view query may have different schema if the referenced table has been changed. After this PR, we try to cast the child output attributes to that from the view schema, throw an AnalysisException if cast is not allowed.

Note this is compatible with the views defined by older versions of Spark(before 2.2), which have empty `defaultDatabase` and all the relations in `viewText` have database part defined.

## How was this patch tested?
1. Add new tests in `SessionCatalogSuite` to test the function `lookupRelation`;
2. Add new test case in `SQLViewSuite` to test resolve a nested view.

Author: jiangxingbo <jiangxb1987@gmail.com>

Closes #16233 from jiangxb1987/resolve-view.
2017-01-11 13:44:07 -08:00
wangzhenhua a615513569 [SPARK-19149][SQL] Unify two sets of statistics in LogicalPlan
## What changes were proposed in this pull request?

Currently we have two sets of statistics in LogicalPlan: a simple stats and a stats estimated by cbo, but the computing logic and naming are quite confusing, we need to unify these two sets of stats.

## How was this patch tested?

Just modify existing tests.

Author: wangzhenhua <wangzhenhua@huawei.com>
Author: Zhenhua Wang <wzh_zju@163.com>

Closes #16529 from wzhfy/unifyStats.
2017-01-10 22:34:44 -08:00
Wenchen Fan 3b19c74e71 [SPARK-19157][SQL] should be able to change spark.sql.runSQLOnFiles at runtime
## What changes were proposed in this pull request?

The analyzer rule that supports to query files directly will be added to `Analyzer.extendedResolutionRules` when SparkSession is created, according to the `spark.sql.runSQLOnFiles` flag. If the flag is off when we create `SparkSession`, this rule is not added and we can not query files directly even we turn on the flag later.

This PR fixes this bug by always adding that rule to `Analyzer.extendedResolutionRules`.

## How was this patch tested?

new regression test

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16531 from cloud-fan/sql-on-files.
2017-01-10 21:33:44 -08:00
Shixiong Zhu bc6c56e940 [SPARK-19140][SS] Allow update mode for non-aggregation streaming queries
## What changes were proposed in this pull request?

This PR allow update mode for non-aggregation streaming queries. It will be same as the append mode if a query has no aggregations.

## How was this patch tested?

Jenkins

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16520 from zsxwing/update-without-agg.
2017-01-10 17:58:11 -08:00
Dongjoon Hyun d5b1dc934a [SPARK-19137][SQL] Fix withSQLConf to reset OptionalConfigEntry correctly
## What changes were proposed in this pull request?

`DataStreamReaderWriterSuite` makes test files in source folder like the followings. Interestingly, the root cause is `withSQLConf` fails to reset `OptionalConfigEntry` correctly. In other words, it resets the config into `Some(undefined)`.

```bash
$ git status
Untracked files:
  (use "git add <file>..." to include in what will be committed)

        sql/core/%253Cundefined%253E/
        sql/core/%3Cundefined%3E/
```

## How was this patch tested?

Manual.
```
build/sbt "project sql" test
git status
```

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #16522 from dongjoon-hyun/SPARK-19137.
2017-01-10 10:49:44 -08:00
Shixiong Zhu 3ef183a941
[SPARK-19113][SS][TESTS] Set UncaughtExceptionHandler in onQueryStarted to ensure catching fatal errors during query initialization
## What changes were proposed in this pull request?

StreamTest sets `UncaughtExceptionHandler` after starting the query now. It may not be able to catch fatal errors during query initialization. This PR uses `onQueryStarted` callback to fix it.

## How was this patch tested?

Jenkins

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16492 from zsxwing/SPARK-19113.
2017-01-10 14:24:45 +00:00
Dongjoon Hyun a2c6adcc5d
[SPARK-18857][SQL] Don't use Iterator.duplicate for incrementalCollect in Thrift Server
## What changes were proposed in this pull request?

To support `FETCH_FIRST`, SPARK-16563 used Scala `Iterator.duplicate`. However,
Scala `Iterator.duplicate` uses a **queue to buffer all items between both iterators**,
this causes GC and hangs for queries with large number of rows. We should not use this,
especially for `spark.sql.thriftServer.incrementalCollect`.

https://github.com/scala/scala/blob/2.12.x/src/library/scala/collection/Iterator.scala#L1262-L1300

## How was this patch tested?

Pass the existing tests.

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #16440 from dongjoon-hyun/SPARK-18857.
2017-01-10 13:27:55 +00:00
hyukjinkwon 4e27578faa
[SPARK-18922][SQL][CORE][STREAMING][TESTS] Fix all identified tests failed due to path and resource-not-closed problems on Windows
## What changes were proposed in this pull request?

This PR proposes to fix all the test failures identified by testing with AppVeyor.

**Scala - aborted tests**

```
WindowQuerySuite:
  Exception encountered when attempting to run a suite with class name: org.apache.spark.sql.hive.execution.WindowQuerySuite *** ABORTED *** (156 milliseconds)
   org.apache.spark.sql.AnalysisException: LOAD DATA input path does not exist: C:projectssparksqlhive   argetscala-2.11   est-classesdatafilespart_tiny.txt;

OrcSourceSuite:
 Exception encountered when attempting to run a suite with class name: org.apache.spark.sql.hive.orc.OrcSourceSuite *** ABORTED *** (62 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

ParquetMetastoreSuite:
 Exception encountered when attempting to run a suite with class name: org.apache.spark.sql.hive.ParquetMetastoreSuite *** ABORTED *** (4 seconds, 703 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

ParquetSourceSuite:
 Exception encountered when attempting to run a suite with class name: org.apache.spark.sql.hive.ParquetSourceSuite *** ABORTED *** (3 seconds, 907 milliseconds)
   org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark  arget mpspark-581a6575-454f-4f21-a516-a07f95266143;

KafkaRDDSuite:
 Exception encountered when attempting to run a suite with class name: org.apache.spark.streaming.kafka.KafkaRDDSuite *** ABORTED *** (5 seconds, 212 milliseconds)
   java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-4722304d-213e-4296-b556-951df1a46807

DirectKafkaStreamSuite:
 Exception encountered when attempting to run a suite with class name: org.apache.spark.streaming.kafka.DirectKafkaStreamSuite *** ABORTED *** (7 seconds, 127 milliseconds)
   java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-d0d3eba7-4215-4e10-b40e-bb797e89338e
   at org.apache.spark.util.Utils$.deleteRecursively(Utils.scala:1010)

ReliableKafkaStreamSuite
 Exception encountered when attempting to run a suite with class name: org.apache.spark.streaming.kafka.ReliableKafkaStreamSuite *** ABORTED *** (5 seconds, 498 milliseconds)
   java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-d33e45a0-287e-4bed-acae-ca809a89d888

KafkaStreamSuite:
 Exception encountered when attempting to run a suite with class name: org.apache.spark.streaming.kafka.KafkaStreamSuite *** ABORTED *** (2 seconds, 892 milliseconds)
   java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-59c9d169-5a56-4519-9ef0-cefdbd3f2e6c

KafkaClusterSuite:
 Exception encountered when attempting to run a suite with class name: org.apache.spark.streaming.kafka.KafkaClusterSuite *** ABORTED *** (1 second, 690 milliseconds)
   java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-3ef402b0-8689-4a60-85ae-e41e274f179d

DirectKafkaStreamSuite:
 Exception encountered when attempting to run a suite with class name: org.apache.spark.streaming.kafka010.DirectKafkaStreamSuite *** ABORTED *** (59 seconds, 626 milliseconds)
   java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-426107da-68cf-4d94-b0d6-1f428f1c53f6

KafkaRDDSuite:
Exception encountered when attempting to run a suite with class name: org.apache.spark.streaming.kafka010.KafkaRDDSuite *** ABORTED *** (2 minutes, 6 seconds)
   java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-b9ce7929-5dae-46ab-a0c4-9ef6f58fbc2
```

**Java - failed tests**

```
Test org.apache.spark.streaming.kafka.JavaKafkaRDDSuite.testKafkaRDD failed: java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-1cee32f4-4390-4321-82c9-e8616b3f0fb0, took 9.61 sec

Test org.apache.spark.streaming.kafka.JavaKafkaStreamSuite.testKafkaStream failed: java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-f42695dd-242e-4b07-847c-f299b8e4676e, took 11.797 sec

Test org.apache.spark.streaming.kafka.JavaDirectKafkaStreamSuite.testKafkaStream failed: java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-85c0d062-78cf-459c-a2dd-7973572101ce, took 1.581 sec

Test org.apache.spark.streaming.kafka010.JavaKafkaRDDSuite.testKafkaRDD failed: java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-49eb6b5c-8366-47a6-83f2-80c443c48280, took 17.895 sec

org.apache.spark.streaming.kafka010.JavaDirectKafkaStreamSuite.testKafkaStream failed: java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-898cf826-d636-4b1c-a61a-c12a364c02e7, took 8.858 sec
```

**Scala - failed tests**

```
PartitionProviderCompatibilitySuite:
 - insert overwrite partition of new datasource table overwrites just partition *** FAILED *** (828 milliseconds)
   java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-bb6337b9-4f99-45ab-ad2c-a787ab965c09

 - SPARK-18635 special chars in partition values - partition management true *** FAILED *** (5 seconds, 360 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

 - SPARK-18635 special chars in partition values - partition management false *** FAILED *** (141 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);
```

```
UtilsSuite:
 - reading offset bytes of a file (compressed) *** FAILED *** (0 milliseconds)
   java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-ecb2b7d5-db8b-43a7-b268-1bf242b5a491

 - reading offset bytes across multiple files (compressed) *** FAILED *** (0 milliseconds)
   java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-25cc47a8-1faa-4da5-8862-cf174df63ce0
```

```
StatisticsSuite:
 - MetastoreRelations fallback to HDFS for size estimation *** FAILED *** (110 milliseconds)
   org.apache.spark.sql.catalyst.analysis.NoSuchTableException: Table or view 'csv_table' not found in database 'default';
```

```
SQLQuerySuite:
 - permanent UDTF *** FAILED *** (125 milliseconds)
   org.apache.spark.sql.AnalysisException: Undefined function: 'udtf_count_temp'. This function is neither a registered temporary function nor a permanent function registered in the database 'default'.; line 1 pos 24

 - describe functions - user defined functions *** FAILED *** (125 milliseconds)
   org.apache.spark.sql.AnalysisException: Undefined function: 'udtf_count'. This function is neither a registered temporary function nor a permanent function registered in the database 'default'.; line 1 pos 7

 - CTAS without serde with location *** FAILED *** (16 milliseconds)
   java.lang.IllegalArgumentException: java.net.URISyntaxException: Relative path in absolute URI: file:C:projectsspark%09arget%09mpspark-ed673d73-edfc-404e-829e-2e2b9725d94e/c1

 - derived from Hive query file: drop_database_removes_partition_dirs.q *** FAILED *** (47 milliseconds)
   java.lang.IllegalArgumentException: java.net.URISyntaxException: Relative path in absolute URI: file:C:projectsspark%09arget%09mpspark-d2ddf08e-699e-45be-9ebd-3dfe619680fe/drop_database_removes_partition_dirs_table

 - derived from Hive query file: drop_table_removes_partition_dirs.q *** FAILED *** (0 milliseconds)
   java.lang.IllegalArgumentException: java.net.URISyntaxException: Relative path in absolute URI: file:C:projectsspark%09arget%09mpspark-d2ddf08e-699e-45be-9ebd-3dfe619680fe/drop_table_removes_partition_dirs_table2

 - SPARK-17796 Support wildcard character in filename for LOAD DATA LOCAL INPATH *** FAILED *** (109 milliseconds)
   java.nio.file.InvalidPathException: Illegal char <:> at index 2: /C:/projects/spark/sql/hive/projectsspark	arget	mpspark-1a122f8c-dfb3-46c4-bab1-f30764baee0e/*part-r*
```

```
HiveDDLSuite:
 - drop external tables in default database *** FAILED *** (16 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

 - add/drop partitions - external table *** FAILED *** (16 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

 - create/drop database - location without pre-created directory *** FAILED *** (16 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

 - create/drop database - location with pre-created directory *** FAILED *** (32 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

 - drop database containing tables - CASCADE *** FAILED *** (94 milliseconds)
   CatalogDatabase(db1,,file:/C:/projects/spark/target/tmp/warehouse-d0665ee0-1e39-4805-b471-0b764f7838be/db1.db,Map()) did not equal CatalogDatabase(db1,,file:C:/projects/spark/target/tmp/warehouse-d0665ee0-1e39-4805-b471-0b764f7838be\db1.db,Map()) (HiveDDLSuite.scala:675)

 - drop an empty database - CASCADE *** FAILED *** (63 milliseconds)
   CatalogDatabase(db1,,file:/C:/projects/spark/target/tmp/warehouse-d0665ee0-1e39-4805-b471-0b764f7838be/db1.db,Map()) did not equal CatalogDatabase(db1,,file:C:/projects/spark/target/tmp/warehouse-d0665ee0-1e39-4805-b471-0b764f7838be\db1.db,Map()) (HiveDDLSuite.scala:675)

 - drop database containing tables - RESTRICT *** FAILED *** (47 milliseconds)
   CatalogDatabase(db1,,file:/C:/projects/spark/target/tmp/warehouse-d0665ee0-1e39-4805-b471-0b764f7838be/db1.db,Map()) did not equal CatalogDatabase(db1,,file:C:/projects/spark/target/tmp/warehouse-d0665ee0-1e39-4805-b471-0b764f7838be\db1.db,Map()) (HiveDDLSuite.scala:675)

 - drop an empty database - RESTRICT *** FAILED *** (47 milliseconds)
   CatalogDatabase(db1,,file:/C:/projects/spark/target/tmp/warehouse-d0665ee0-1e39-4805-b471-0b764f7838be/db1.db,Map()) did not equal CatalogDatabase(db1,,file:C:/projects/spark/target/tmp/warehouse-d0665ee0-1e39-4805-b471-0b764f7838be\db1.db,Map()) (HiveDDLSuite.scala:675)

 - CREATE TABLE LIKE an external data source table *** FAILED *** (140 milliseconds)
   org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-c5eba16d-07ae-4186-95bb-21c5811cf888;

 - CREATE TABLE LIKE an external Hive serde table *** FAILED *** (16 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

 - desc table for data source table - no user-defined schema *** FAILED *** (125 milliseconds)
   org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-e8bf5bf5-721a-4cbe-9d6	at scala.collection.immutable.List.foreach(List.scala:381)d-5543a8301c1d;
```

```
MetastoreDataSourcesSuite
 - CTAS: persisted bucketed data source table *** FAILED *** (16 milliseconds)
   java.lang.IllegalArgumentException: Can not create a Path from an empty string
```

```
ShowCreateTableSuite:
 - simple external hive table *** FAILED *** (0 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);
```

```
PartitionedTablePerfStatsSuite:
 - hive table: partitioned pruned table reports only selected files *** FAILED *** (313 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

 - datasource table: partitioned pruned table reports only selected files *** FAILED *** (219 milliseconds)
   org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-311f45f8-d064-4023-a4bb-e28235bff64d;

 - hive table: lazy partition pruning reads only necessary partition data *** FAILED *** (203 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

 - datasource table: lazy partition pruning reads only necessary partition data *** FAILED *** (187 milliseconds)
   org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-fde874ca-66bd-4d0b-a40f-a043b65bf957;

 - hive table: lazy partition pruning with file status caching enabled *** FAILED *** (188 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

 - datasource table: lazy partition pruning with file status caching enabled *** FAILED *** (187 milliseconds)
   org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-e6d20183-dd68-4145-acbe-4a509849accd;

 - hive table: file status caching respects refresh table and refreshByPath *** FAILED *** (172 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

 - datasource table: file status caching respects refresh table and refreshByPath *** FAILED *** (203 milliseconds)
   org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-8b2c9651-2adf-4d58-874f-659007e21463;

 - hive table: file status cache respects size limit *** FAILED *** (219 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

 - datasource table: file status cache respects size limit *** FAILED *** (171 milliseconds)
   org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-7835ab57-cb48-4d2c-bb1d-b46d5a4c47e4;

 - datasource table: table setup does not scan filesystem *** FAILED *** (266 milliseconds)
   org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-20598d76-c004-42a7-8061-6c56f0eda5e2;

 - hive table: table setup does not scan filesystem *** FAILED *** (266 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

 - hive table: num hive client calls does not scale with partition count *** FAILED *** (2 seconds, 281 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

 - datasource table: num hive client calls does not scale with partition count *** FAILED *** (2 seconds, 422 milliseconds)
   org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-4cfed321-4d1d-4b48-8d34-5c169afff383;

 - hive table: files read and cached when filesource partition management is off *** FAILED *** (234 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

 - datasource table: all partition data cached in memory when partition management is off *** FAILED *** (203 milliseconds)
   org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-4bcc0398-15c9-4f6a-811e-12d40f3eec12;

 - SPARK-18700: table loaded only once even when resolved concurrently *** FAILED *** (1 second, 266 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);
```

```
HiveSparkSubmitSuite:
 - temporary Hive UDF: define a UDF and use it *** FAILED *** (2 seconds, 94 milliseconds)
   java.io.IOException: Cannot run program "./bin/spark-submit" (in directory "C:\projects\spark"): CreateProcess error=2, The system cannot find the file specified

 - permanent Hive UDF: define a UDF and use it *** FAILED *** (281 milliseconds)
   java.io.IOException: Cannot run program "./bin/spark-submit" (in directory "C:\projects\spark"): CreateProcess error=2, The system cannot find the file specified

 - permanent Hive UDF: use a already defined permanent function *** FAILED *** (718 milliseconds)
   java.io.IOException: Cannot run program "./bin/spark-submit" (in directory "C:\projects\spark"): CreateProcess error=2, The system cannot find the file specified

 - SPARK-8368: includes jars passed in through --jars *** FAILED *** (3 seconds, 521 milliseconds)
   java.io.IOException: Cannot run program "./bin/spark-submit" (in directory "C:\projects\spark"): CreateProcess error=2, The system cannot find the file specified

 - SPARK-8020: set sql conf in spark conf *** FAILED *** (0 milliseconds)
   java.io.IOException: Cannot run program "./bin/spark-submit" (in directory "C:\projects\spark"): CreateProcess error=2, The system cannot find the file specified

 - SPARK-8489: MissingRequirementError during reflection *** FAILED *** (94 milliseconds)
   java.io.IOException: Cannot run program "./bin/spark-submit" (in directory "C:\projects\spark"): CreateProcess error=2, The system cannot find the file specified

 - SPARK-9757 Persist Parquet relation with decimal column *** FAILED *** (16 milliseconds)
   java.io.IOException: Cannot run program "./bin/spark-submit" (in directory "C:\projects\spark"): CreateProcess error=2, The system cannot find the file specified

 - SPARK-11009 fix wrong result of Window function in cluster mode *** FAILED *** (16 milliseconds)
   java.io.IOException: Cannot run program "./bin/spark-submit" (in directory "C:\projects\spark"): CreateProcess error=2, The system cannot find the file specified

 - SPARK-14244 fix window partition size attribute binding failure *** FAILED *** (78 milliseconds)
   java.io.IOException: Cannot run program "./bin/spark-submit" (in directory "C:\projects\spark"): CreateProcess error=2, The system cannot find the file specified

 - set spark.sql.warehouse.dir *** FAILED *** (16 milliseconds)
   java.io.IOException: Cannot run program "./bin/spark-submit" (in directory "C:\projects\spark"): CreateProcess error=2, The system cannot find the file specified

 - set hive.metastore.warehouse.dir *** FAILED *** (15 milliseconds)
   java.io.IOException: Cannot run program "./bin/spark-submit" (in directory "C:\projects\spark"): CreateProcess error=2, The system cannot find the file specified

 - SPARK-16901: set javax.jdo.option.ConnectionURL *** FAILED *** (16 milliseconds)
   java.io.IOException: Cannot run program "./bin/spark-submit" (in directory "C:\projects\spark"): CreateProcess error=2, The system cannot find the file specified

 - SPARK-18360: default table path of tables in default database should depend on the location of default database *** FAILED *** (15 milliseconds)
   java.io.IOException: Cannot run program "./bin/spark-submit" (in directory "C:\projects\spark"): CreateProcess error=2, The system cannot find the file specified
```

```
UtilsSuite:
 - resolveURIs with multiple paths *** FAILED *** (0 milliseconds)
   ".../jar3,file:/C:/pi.py[%23]py.pi,file:/C:/path%..." did not equal ".../jar3,file:/C:/pi.py[#]py.pi,file:/C:/path%..." (UtilsSuite.scala:468)
```

```
CheckpointSuite:
 - recovery with file input stream *** FAILED *** (10 seconds, 205 milliseconds)
   The code passed to eventually never returned normally. Attempted 660 times over 10.014272499999999 seconds. Last failure message: Unexpected internal error near index 1
   \
    ^. (CheckpointSuite.scala:680)
```

## How was this patch tested?

Manually via AppVeyor as below:

**Scala - aborted tests**

```
WindowQuerySuite - all passed
OrcSourceSuite:
- SPARK-18220: read Hive orc table with varchar column *** FAILED *** (4 seconds, 417 milliseconds)
  org.apache.spark.sql.execution.QueryExecutionException: FAILED: Execution Error, return code -101 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask. org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Ljava/lang/String;I)Z
  at org.apache.spark.sql.hive.client.HiveClientImpl$$anonfun$runHive$1.apply(HiveClientImpl.scala:625)
ParquetMetastoreSuite - all passed
ParquetSourceSuite - all passed
KafkaRDDSuite - all passed
DirectKafkaStreamSuite - all passed
ReliableKafkaStreamSuite - all passed
KafkaStreamSuite - all passed
KafkaClusterSuite - all passed
DirectKafkaStreamSuite - all passed
KafkaRDDSuite - all passed
```

**Java - failed tests**

```
org.apache.spark.streaming.kafka.JavaKafkaRDDSuite - all passed
org.apache.spark.streaming.kafka.JavaDirectKafkaStreamSuite - all passed
org.apache.spark.streaming.kafka.JavaKafkaStreamSuite - all passed
org.apache.spark.streaming.kafka010.JavaDirectKafkaStreamSuite - all passed
org.apache.spark.streaming.kafka010.JavaKafkaRDDSuite - all passed
```

**Scala - failed tests**

```
PartitionProviderCompatibilitySuite:
- insert overwrite partition of new datasource table overwrites just partition (1 second, 953 milliseconds)
- SPARK-18635 special chars in partition values - partition management true (6 seconds, 31 milliseconds)
- SPARK-18635 special chars in partition values - partition management false (4 seconds, 578 milliseconds)
```

```
UtilsSuite:
- reading offset bytes of a file (compressed) (203 milliseconds)
- reading offset bytes across multiple files (compressed) (0 milliseconds)
```

```
StatisticsSuite:
- MetastoreRelations fallback to HDFS for size estimation (94 milliseconds)
```

```
SQLQuerySuite:
 - permanent UDTF (407 milliseconds)
 - describe functions - user defined functions (441 milliseconds)
 - CTAS without serde with location (2 seconds, 831 milliseconds)
 - derived from Hive query file: drop_database_removes_partition_dirs.q (734 milliseconds)
 - derived from Hive query file: drop_table_removes_partition_dirs.q (563 milliseconds)
 - SPARK-17796 Support wildcard character in filename for LOAD DATA LOCAL INPATH (453 milliseconds)
```

```
HiveDDLSuite:
 - drop external tables in default database (3 seconds, 5 milliseconds)
 - add/drop partitions - external table (2 seconds, 750 milliseconds)
 - create/drop database - location without pre-created directory (500 milliseconds)
 - create/drop database - location with pre-created directory (407 milliseconds)
 - drop database containing tables - CASCADE (453 milliseconds)
 - drop an empty database - CASCADE (375 milliseconds)
 - drop database containing tables - RESTRICT (328 milliseconds)
 - drop an empty database - RESTRICT (391 milliseconds)
 - CREATE TABLE LIKE an external data source table (953 milliseconds)
 - CREATE TABLE LIKE an external Hive serde table (3 seconds, 782 milliseconds)
 - desc table for data source table - no user-defined schema (1 second, 150 milliseconds)
```

```
MetastoreDataSourcesSuite
 - CTAS: persisted bucketed data source table (875 milliseconds)
```

```
ShowCreateTableSuite:
 - simple external hive table (78 milliseconds)
```

```
PartitionedTablePerfStatsSuite:
 - hive table: partitioned pruned table reports only selected files (1 second, 109 milliseconds)
- datasource table: partitioned pruned table reports only selected files (860 milliseconds)
 - hive table: lazy partition pruning reads only necessary partition data (859 milliseconds)
 - datasource table: lazy partition pruning reads only necessary partition data (1 second, 219 milliseconds)
 - hive table: lazy partition pruning with file status caching enabled (875 milliseconds)
 - datasource table: lazy partition pruning with file status caching enabled (890 milliseconds)
 - hive table: file status caching respects refresh table and refreshByPath (922 milliseconds)
 - datasource table: file status caching respects refresh table and refreshByPath (640 milliseconds)
 - hive table: file status cache respects size limit (469 milliseconds)
 - datasource table: file status cache respects size limit (453 milliseconds)
 - datasource table: table setup does not scan filesystem (328 milliseconds)
 - hive table: table setup does not scan filesystem (313 milliseconds)
 - hive table: num hive client calls does not scale with partition count (5 seconds, 431 milliseconds)
 - datasource table: num hive client calls does not scale with partition count (4 seconds, 79 milliseconds)
 - hive table: files read and cached when filesource partition management is off (656 milliseconds)
 - datasource table: all partition data cached in memory when partition management is off (484 milliseconds)
 - SPARK-18700: table loaded only once even when resolved concurrently (2 seconds, 578 milliseconds)
```

```
HiveSparkSubmitSuite:
 - temporary Hive UDF: define a UDF and use it (1 second, 745 milliseconds)
 - permanent Hive UDF: define a UDF and use it (406 milliseconds)
 - permanent Hive UDF: use a already defined permanent function (375 milliseconds)
 - SPARK-8368: includes jars passed in through --jars (391 milliseconds)
 - SPARK-8020: set sql conf in spark conf (156 milliseconds)
 - SPARK-8489: MissingRequirementError during reflection (187 milliseconds)
 - SPARK-9757 Persist Parquet relation with decimal column (157 milliseconds)
 - SPARK-11009 fix wrong result of Window function in cluster mode (156 milliseconds)
 - SPARK-14244 fix window partition size attribute binding failure (156 milliseconds)
 - set spark.sql.warehouse.dir (172 milliseconds)
 - set hive.metastore.warehouse.dir (156 milliseconds)
 - SPARK-16901: set javax.jdo.option.ConnectionURL (157 milliseconds)
 - SPARK-18360: default table path of tables in default database should depend on the location of default database (172 milliseconds)
```

```
UtilsSuite:
 - resolveURIs with multiple paths (0 milliseconds)
```

```
CheckpointSuite:
 - recovery with file input stream (4 seconds, 452 milliseconds)
```

Note: after resolving the aborted tests, there is a test failure identified as below:

```
OrcSourceSuite:
- SPARK-18220: read Hive orc table with varchar column *** FAILED *** (4 seconds, 417 milliseconds)
  org.apache.spark.sql.execution.QueryExecutionException: FAILED: Execution Error, return code -101 from org.apache.hadoop.hive.ql.exec.mr.MapRedTask. org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Ljava/lang/String;I)Z
  at org.apache.spark.sql.hive.client.HiveClientImpl$$anonfun$runHive$1.apply(HiveClientImpl.scala:625)
```

This does not look due to this problem so this PR does not fix it here.

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #16451 from HyukjinKwon/all-path-resource-fixes.
2017-01-10 13:19:21 +00:00
Wenchen Fan b0319c2ecb [SPARK-19107][SQL] support creating hive table with DataFrameWriter and Catalog
## What changes were proposed in this pull request?

After unifying the CREATE TABLE syntax in https://github.com/apache/spark/pull/16296, it's pretty easy to support creating hive table with `DataFrameWriter` and `Catalog` now.

This PR basically just removes the hive provider check in `DataFrameWriter.saveAsTable` and `Catalog.createExternalTable`, and add tests.

## How was this patch tested?

new tests in `HiveDDLSuite`

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16487 from cloud-fan/hive-table.
2017-01-10 19:26:51 +08:00
Burak Yavuz faabe69cc0 [SPARK-18952] Regex strings not properly escaped in codegen for aggregations
## What changes were proposed in this pull request?

If I use the function regexp_extract, and then in my regex string, use `\`, i.e. escape character, this fails codegen, because the `\` character is not properly escaped when codegen'd.

Example stack trace:
```
/* 059 */     private int maxSteps = 2;
/* 060 */     private int numRows = 0;
/* 061 */     private org.apache.spark.sql.types.StructType keySchema = new org.apache.spark.sql.types.StructType().add("date_format(window#325.start, yyyy-MM-dd HH:mm)", org.apache.spark.sql.types.DataTypes.StringType)
/* 062 */     .add("regexp_extract(source#310.description, ([a-zA-Z]+)\[.*, 1)", org.apache.spark.sql.types.DataTypes.StringType);
/* 063 */     private org.apache.spark.sql.types.StructType valueSchema = new org.apache.spark.sql.types.StructType().add("sum", org.apache.spark.sql.types.DataTypes.LongType);
/* 064 */     private Object emptyVBase;

...

org.codehaus.commons.compiler.CompileException: File 'generated.java', Line 62, Column 58: Invalid escape sequence
	at org.codehaus.janino.Scanner.scanLiteralCharacter(Scanner.java:918)
	at org.codehaus.janino.Scanner.produce(Scanner.java:604)
	at org.codehaus.janino.Parser.peekRead(Parser.java:3239)
	at org.codehaus.janino.Parser.parseArguments(Parser.java:3055)
	at org.codehaus.janino.Parser.parseSelector(Parser.java:2914)
	at org.codehaus.janino.Parser.parseUnaryExpression(Parser.java:2617)
	at org.codehaus.janino.Parser.parseMultiplicativeExpression(Parser.java:2573)
	at org.codehaus.janino.Parser.parseAdditiveExpression(Parser.java:2552)
```

In the codegend expression, the literal should use `\\` instead of `\`

A similar problem was solved here: https://github.com/apache/spark/pull/15156.

## How was this patch tested?

Regression test in `DataFrameAggregationSuite`

Author: Burak Yavuz <brkyvz@gmail.com>

Closes #16361 from brkyvz/reg-break.
2017-01-09 14:25:38 -08:00
anabranch 19d9d4c855 [SPARK-19126][DOCS] Update Join Documentation Across Languages
## What changes were proposed in this pull request?

- [X] Make sure all join types are clearly mentioned
- [X] Make join labeling/style consistent
- [X] Make join label ordering docs the same
- [X] Improve join documentation according to above for Scala
- [X] Improve join documentation according to above for Python
- [X] Improve join documentation according to above for R

## How was this patch tested?
No tests b/c docs.

Please review http://spark.apache.org/contributing.html before opening a pull request.

Author: anabranch <wac.chambers@gmail.com>

Closes #16504 from anabranch/SPARK-19126.
2017-01-08 20:37:46 -08:00
anabranch 1f6ded6455 [SPARK-19127][DOCS] Update Rank Function Documentation
## What changes were proposed in this pull request?

- [X] Fix inconsistencies in function reference for dense rank and dense
- [X] Make all languages equivalent in their reference to `dense_rank` and `rank`.

## How was this patch tested?

N/A for docs.

Please review http://spark.apache.org/contributing.html before opening a pull request.

Author: anabranch <wac.chambers@gmail.com>

Closes #16505 from anabranch/SPARK-19127.
2017-01-08 17:53:53 -08:00
Dilip Biswal 4351e62207 [SPARK-19093][SQL] Cached tables are not used in SubqueryExpression
## What changes were proposed in this pull request?
Consider the plans inside subquery expressions while looking up cache manager to make
use of cached data. Currently CacheManager.useCachedData does not consider the
subquery expressions in the plan.

SQL
```
select * from rows where not exists (select * from rows)
```
Before the fix
```
== Optimized Logical Plan ==
Join LeftAnti
:- InMemoryRelation [_1#3775, _2#3776], true, 10000, StorageLevel(disk, memory, deserialized, 1 replicas)
:     +- *FileScan parquet [_1#3775,_2#3776] Batched: true, Format: Parquet, Location: InMemoryFileIndex[dbfs:/tmp/rows], PartitionFilters: [], PushedFilters: [], ReadSchema: struct<_1:string,_2:string>
+- Project [_1#3775 AS _1#3775#4001, _2#3776 AS _2#3776#4002]
   +- Relation[_1#3775,_2#3776] parquet
```

After
```
== Optimized Logical Plan ==
Join LeftAnti
:- InMemoryRelation [_1#256, _2#257], true, 10000, StorageLevel(disk, memory, deserialized, 1 replicas)
:     +- *FileScan parquet [_1#256,_2#257] Batched: true, Format: Parquet, Location: InMemoryFileIndex[file:/tmp/rows], PartitionFilters: [], PushedFilters: [], ReadSchema: struct<_1:string,_2:string>
+- Project [_1#256 AS _1#256#298, _2#257 AS _2#257#299]
   +- InMemoryRelation [_1#256, _2#257], true, 10000, StorageLevel(disk, memory, deserialized, 1 replicas)
         +- *FileScan parquet [_1#256,_2#257] Batched: true, Format: Parquet, Location: InMemoryFileIndex[file:/tmp/rows], PartitionFilters: [], PushedFilters: [], ReadSchema: struct<_1:string,_2:string>
```

Query2
```
 SELECT * FROM t1
 WHERE
 c1 IN (SELECT c1 FROM t2 WHERE c1 IN (SELECT c1 FROM t3 WHERE c1 = 1))
```
Before
```
== Analyzed Logical Plan ==
c1: int
Project [c1#3]
+- Filter predicate-subquery#47 [(c1#3 = c1#10)]
   :  +- Project [c1#10]
   :     +- Filter predicate-subquery#46 [(c1#10 = c1#17)]
   :        :  +- Project [c1#17]
   :        :     +- Filter (c1#17 = 1)
   :        :        +- SubqueryAlias t3, `t3`
   :        :           +- Project [value#15 AS c1#17]
   :        :              +- LocalRelation [value#15]
   :        +- SubqueryAlias t2, `t2`
   :           +- Project [value#8 AS c1#10]
   :              +- LocalRelation [value#8]
   +- SubqueryAlias t1, `t1`
      +- Project [value#1 AS c1#3]
         +- LocalRelation [value#1]

== Optimized Logical Plan ==
Join LeftSemi, (c1#3 = c1#10)
:- InMemoryRelation [c1#3], true, 10000, StorageLevel(disk, memory, deserialized, 1 replicas), t1
:     +- LocalTableScan [c1#3]
+- Project [value#8 AS c1#10]
   +- Join LeftSemi, (value#8 = c1#17)
      :- LocalRelation [value#8]
      +- Project [value#15 AS c1#17]
         +- Filter (value#15 = 1)
            +- LocalRelation [value#15]

```
After
```
== Analyzed Logical Plan ==
c1: int
Project [c1#3]
+- Filter predicate-subquery#47 [(c1#3 = c1#10)]
   :  +- Project [c1#10]
   :     +- Filter predicate-subquery#46 [(c1#10 = c1#17)]
   :        :  +- Project [c1#17]
   :        :     +- Filter (c1#17 = 1)
   :        :        +- SubqueryAlias t3, `t3`
   :        :           +- Project [value#15 AS c1#17]
   :        :              +- LocalRelation [value#15]
   :        +- SubqueryAlias t2, `t2`
   :           +- Project [value#8 AS c1#10]
   :              +- LocalRelation [value#8]
   +- SubqueryAlias t1, `t1`
      +- Project [value#1 AS c1#3]
         +- LocalRelation [value#1]

== Optimized Logical Plan ==
Join LeftSemi, (c1#3 = c1#10)
:- InMemoryRelation [c1#3], true, 10000, StorageLevel(disk, memory, deserialized, 1 replicas), t1
:     +- LocalTableScan [c1#3]
+- Join LeftSemi, (c1#10 = c1#17)
   :- InMemoryRelation [c1#10], true, 10000, StorageLevel(disk, memory, deserialized, 1 replicas), t2
   :     +- LocalTableScan [c1#10]
   +- Filter (c1#17 = 1)
      +- InMemoryRelation [c1#17], true, 10000, StorageLevel(disk, memory, deserialized, 1 replicas), t1
            +- LocalTableScan [c1#3]
```
## How was this patch tested?
Added new tests in CachedTableSuite.

Author: Dilip Biswal <dbiswal@us.ibm.com>

Closes #16493 from dilipbiswal/SPARK-19093.
2017-01-08 23:09:07 +01:00
Wenchen Fan b3d39620c5 [SPARK-19085][SQL] cleanup OutputWriterFactory and OutputWriter
## What changes were proposed in this pull request?

`OutputWriterFactory`/`OutputWriter` are internal interfaces and we can remove some unnecessary APIs:
1. `OutputWriterFactory.newWriter(path: String)`: no one calls it and no one implements it.
2. `OutputWriter.write(row: Row)`: during execution we only call `writeInternal`, which is weird as `OutputWriter` is already an internal interface. We should rename `writeInternal` to `write` and remove `def write(row: Row)` and it's related converter code. All implementations should just implement `def write(row: InternalRow)`

## How was this patch tested?

existing tests.

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16479 from cloud-fan/hive-writer.
2017-01-08 00:42:09 +08:00
Tathagata Das b59cddaba0 [SPARK-19074][SS][DOCS] Updated Structured Streaming Programming Guide for update mode and source/sink options
## What changes were proposed in this pull request?

Updates
- Updated Late Data Handling section by adding a figure for Update Mode. Its more intuitive to explain late data handling with Update Mode, so I added the new figure before the Append Mode figure.
- Updated Output Modes section with Update mode
- Added options for all the sources and sinks

---------------------------
---------------------------

![image](https://cloud.githubusercontent.com/assets/663212/21665176/f150b224-d29f-11e6-8372-14d32da21db9.png)

---------------------------
---------------------------
<img width="931" alt="screen shot 2017-01-03 at 6 09 11 pm" src="https://cloud.githubusercontent.com/assets/663212/21629740/d21c9bb8-d1df-11e6-915b-488a59589fa6.png">
<img width="933" alt="screen shot 2017-01-03 at 6 10 00 pm" src="https://cloud.githubusercontent.com/assets/663212/21629749/e22bdabe-d1df-11e6-86d3-7e51d2f28dbc.png">

---------------------------
---------------------------
![image](https://cloud.githubusercontent.com/assets/663212/21665200/108e18fc-d2a0-11e6-8640-af598cab090b.png)
![image](https://cloud.githubusercontent.com/assets/663212/21665148/cfe414fa-d29f-11e6-9baa-4124ccbab093.png)
![image](https://cloud.githubusercontent.com/assets/663212/21665226/2e8f39e4-d2a0-11e6-85b1-7657e2df5491.png)

Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #16468 from tdas/SPARK-19074.
2017-01-06 11:29:01 -08:00
Michal Senkyr 903bb8e8a2 [SPARK-16792][SQL] Dataset containing a Case Class with a List type causes a CompileException (converting sequence to list)
## What changes were proposed in this pull request?

Added a `to` call at the end of the code generated by `ScalaReflection.deserializerFor` if the requested type is not a supertype of `WrappedArray[_]` that uses `CanBuildFrom[_, _, _]` to convert result into an arbitrary subtype of `Seq[_]`.

Care was taken to preserve the original deserialization where it is possible to avoid the overhead of conversion in cases where it is not needed

`ScalaReflection.serializerFor` could already be used to serialize any `Seq[_]` so it was not altered

`SQLImplicits` had to be altered and new implicit encoders added to permit serialization of other sequence types

Also fixes [SPARK-16815] Dataset[List[T]] leads to ArrayStoreException

## How was this patch tested?
```bash
./build/mvn -DskipTests clean package && ./dev/run-tests
```

Also manual execution of the following sets of commands in the Spark shell:
```scala
case class TestCC(key: Int, letters: List[String])

val ds1 = sc.makeRDD(Seq(
(List("D")),
(List("S","H")),
(List("F","H")),
(List("D","L","L"))
)).map(x=>(x.length,x)).toDF("key","letters").as[TestCC]

val test1=ds1.map{_.key}
test1.show
```

```scala
case class X(l: List[String])
spark.createDataset(Seq(List("A"))).map(X).show
```

```scala
spark.sqlContext.createDataset(sc.parallelize(List(1) :: Nil)).collect
```

After adding arbitrary sequence support also tested with the following commands:

```scala
case class QueueClass(q: scala.collection.immutable.Queue[Int])

spark.createDataset(Seq(List(1,2,3))).map(x => QueueClass(scala.collection.immutable.Queue(x: _*))).map(_.q.dequeue).collect
```

Author: Michal Senkyr <mike.senkyr@gmail.com>

Closes #16240 from michalsenkyr/sql-caseclass-list-fix.
2017-01-06 15:05:20 +08:00
Kevin Yu bcc510b021 [SPARK-18871][SQL] New test cases for IN/NOT IN subquery
## What changes were proposed in this pull request?
This PR extends the existing IN/NOT IN subquery test cases coverage, adds more test cases to the IN subquery test suite.

Based on the discussion, we will create  `subquery/in-subquery` sub structure under `sql/core/src/test/resources/sql-tests/inputs` directory.

This is the high level grouping for IN subquery:

`subquery/in-subquery/`
`subquery/in-subquery/simple-in.sql`
`subquery/in-subquery/in-group-by.sql (in parent side, subquery, and both)`
`subquery/in-subquery/not-in-group-by.sql`
`subquery/in-subquery/in-order-by.sql`
`subquery/in-subquery/in-limit.sql`
`subquery/in-subquery/in-having.sql`
`subquery/in-subquery/in-joins.sql`
`subquery/in-subquery/not-in-joins.sql`
`subquery/in-subquery/in-set-operations.sql`
`subquery/in-subquery/in-with-cte.sql`
`subquery/in-subquery/not-in-with-cte.sql`
subquery/in-subquery/in-multiple-columns.sql`

We will deliver it through multiple prs, this is the first pr for the IN subquery, it has

`subquery/in-subquery/simple-in.sql`
`subquery/in-subquery/in-group-by.sql (in parent side, subquery, and both)`

These are the results from running on DB2.
[Modified test file of in-group-by.sql used to run on DB2](https://github.com/apache/spark/files/683367/in-group-by.sql.db2.txt)
[Output of the run result on DB2](https://github.com/apache/spark/files/683362/in-group-by.sql.db2.out.txt)
[Modified test file of simple-in.sql used to run on DB2](https://github.com/apache/spark/files/683378/simple-in.sql.db2.txt)
[Output of the run result on DB2](https://github.com/apache/spark/files/683379/simple-in.sql.db2.out.txt)

## How was this patch tested?

This patch is adding tests.

Author: Kevin Yu <qyu@us.ibm.com>

Closes #16337 from kevinyu98/spark-18871.
2017-01-05 19:00:39 -08:00
Wenchen Fan cca945b6aa [SPARK-18885][SQL] unify CREATE TABLE syntax for data source and hive serde tables
## What changes were proposed in this pull request?

Today we have different syntax to create data source or hive serde tables, we should unify them to not confuse users and step forward to make hive a data source.

Please read https://issues.apache.org/jira/secure/attachment/12843835/CREATE-TABLE.pdf for  details.

TODO(for follow-up PRs):
1. TBLPROPERTIES is not added to the new syntax, we should decide if we wanna add it later.
2. `SHOW CREATE TABLE` should be updated to use the new syntax.
3. we should decide if we wanna change the behavior of `SET LOCATION`.

## How was this patch tested?

new tests

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16296 from cloud-fan/create-table.
2017-01-05 17:40:27 -08:00
Wenchen Fan 30345c43b7 [SPARK-19058][SQL] fix partition related behaviors with DataFrameWriter.saveAsTable
## What changes were proposed in this pull request?

When we append data to a partitioned table with `DataFrameWriter.saveAsTable`, there are 2 issues:
1. doesn't work when the partition has custom location.
2. will recover all partitions

This PR fixes them by moving the special partition handling code from `DataSourceAnalysis` to `InsertIntoHadoopFsRelationCommand`, so that the `DataFrameWriter.saveAsTable` code path can also benefit from it.

## How was this patch tested?

newly added regression tests

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16460 from cloud-fan/append.
2017-01-05 14:11:05 +08:00
Herman van Hovell 4262fb0d55 [SPARK-19070] Clean-up dataset actions
## What changes were proposed in this pull request?
Dataset actions currently spin off a new `Dataframe` only to track query execution. This PR simplifies this code path by using the `Dataset.queryExecution` directly. This PR also merges the typed and untyped action evaluation paths.

## How was this patch tested?
Existing tests.

Author: Herman van Hovell <hvanhovell@databricks.com>

Closes #16466 from hvanhovell/SPARK-19070.
2017-01-04 23:47:58 +08:00
Niranjan Padmanabhan a1e40b1f5d
[MINOR][DOCS] Remove consecutive duplicated words/typo in Spark Repo
## What changes were proposed in this pull request?
There are many locations in the Spark repo where the same word occurs consecutively. Sometimes they are appropriately placed, but many times they are not. This PR removes the inappropriately duplicated words.

## How was this patch tested?
N/A since only docs or comments were updated.

Author: Niranjan Padmanabhan <niranjan.padmanabhan@gmail.com>

Closes #16455 from neurons/np.structure_streaming_doc.
2017-01-04 15:07:29 +00:00
Wenchen Fan 101556d0fa [SPARK-19060][SQL] remove the supportsPartial flag in AggregateFunction
## What changes were proposed in this pull request?

Now all aggregation functions support partial aggregate, we can remove the `supportsPartual` flag in `AggregateFunction`

## How was this patch tested?

existing tests.

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16461 from cloud-fan/partial.
2017-01-04 12:46:30 +01:00
gatorsmile b67b35f76b [SPARK-19048][SQL] Delete Partition Location when Dropping Managed Partitioned Tables in InMemoryCatalog
### What changes were proposed in this pull request?
The data in the managed table should be deleted after table is dropped. However, if the partition location is not under the location of the partitioned table, it is not deleted as expected. Users can specify any location for the partition when they adding a partition.

This PR is to delete partition location when dropping managed partitioned tables stored in `InMemoryCatalog`.

### How was this patch tested?
Added test cases for both HiveExternalCatalog and InMemoryCatalog

Author: gatorsmile <gatorsmile@gmail.com>

Closes #16448 from gatorsmile/unsetSerdeProp.
2017-01-03 11:43:47 -08:00
Dongjoon Hyun 7a2b5f93bc [SPARK-18877][SQL] CSVInferSchema.inferField on DecimalType should find a common type with typeSoFar
## What changes were proposed in this pull request?

CSV type inferencing causes `IllegalArgumentException` on decimal numbers with heterogeneous precisions and scales because the current logic uses the last decimal type in a **partition**. Specifically, `inferRowType`, the **seqOp** of **aggregate**, returns the last decimal type. This PR fixes it to use `findTightestCommonType`.

**decimal.csv**
```
9.03E+12
1.19E+11
```

**BEFORE**
```scala
scala> spark.read.format("csv").option("inferSchema", true).load("decimal.csv").printSchema
root
 |-- _c0: decimal(3,-9) (nullable = true)

scala> spark.read.format("csv").option("inferSchema", true).load("decimal.csv").show
16/12/16 14:32:49 ERROR Executor: Exception in task 0.0 in stage 4.0 (TID 4)
java.lang.IllegalArgumentException: requirement failed: Decimal precision 4 exceeds max precision 3
```

**AFTER**
```scala
scala> spark.read.format("csv").option("inferSchema", true).load("decimal.csv").printSchema
root
 |-- _c0: decimal(4,-9) (nullable = true)

scala> spark.read.format("csv").option("inferSchema", true).load("decimal.csv").show
+---------+
|      _c0|
+---------+
|9.030E+12|
| 1.19E+11|
+---------+
```

## How was this patch tested?

Pass the newly add test case.

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #16320 from dongjoon-hyun/SPARK-18877.
2017-01-03 23:06:50 +08:00
Zhenhua Wang ae83c21125 [SPARK-18998][SQL] Add a cbo conf to switch between default statistics and estimated statistics
## What changes were proposed in this pull request?

We add a cbo configuration to switch between default stats and estimated stats.
We also define a new statistics method `planStats` in LogicalPlan with conf as its parameter, in order to pass the cbo switch and other estimation related configurations in the future. `planStats` is used on the caller sides (i.e. in Optimizer and Strategies) to make transformation decisions based on stats.

## How was this patch tested?

Add a test case using a dummy LogicalPlan.

Author: Zhenhua Wang <wzh_zju@163.com>

Closes #16401 from wzhfy/cboSwitch.
2017-01-03 12:19:52 +08:00
hyukjinkwon f1330b1d9e
[SPARK-19022][TESTS] Fix tests dependent on OS due to different newline characters
## What changes were proposed in this pull request?

There are two tests failing on Windows due to the different newlines.

```
 - StreamingQueryProgress - prettyJson *** FAILED *** (0 milliseconds)
 "{
    "id" : "39788670-6722-48b7-a248-df6ba08722ac",
    "runId" : "422282f1-3b81-4b47-a15d-82dda7e69390",
    "name" : "myName",
    ...
  }" did not equal "{
    "id" : "39788670-6722-48b7-a248-df6ba08722ac",
    "runId" : "422282f1-3b81-4b47-a15d-82dda7e69390",
    "name" : "myName",
    ...
  }"
  ...
```

```
 - StreamingQueryStatus - prettyJson *** FAILED *** (0 milliseconds)
 "{
    "message" : "active",
    "isDataAvailable" : true,
    "isTriggerActive" : false
  }" did not equal "{
    "message" : "active",
    "isDataAvailable" : true,
    "isTriggerActive" : false
  }"
  ...
```

The reason is, `pretty` in `org.json4s.pretty` writes OS-dependent newlines but the string defined in the tests are `\n`. This ends up with test failures.

This PR proposes to compare these regardless of newline concerns.

## How was this patch tested?

Manually tested via AppVeyor.

**Before**
https://ci.appveyor.com/project/spark-test/spark/build/417-newlines-fix-before

**After**
https://ci.appveyor.com/project/spark-test/spark/build/418-newlines-fix

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #16433 from HyukjinKwon/tests-StreamingQueryStatusAndProgressSuite.
2017-01-02 15:17:02 +00:00
Shixiong Zhu 2394047370 [SPARK-19050][SS][TESTS] Fix EventTimeWatermarkSuite 'delay in months and years handled correctly'
## What changes were proposed in this pull request?

`monthsSinceEpoch` in this test is like `math.floor(num)`, so `monthDiff` has two possible values.

## How was this patch tested?

Jenkins.

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16449 from zsxwing/watermark-test-hotfix.
2017-01-01 13:25:44 -08:00
Dongjoon Hyun b85e29437d [SPARK-18123][SQL] Use db column names instead of RDD column ones during JDBC Writing
## What changes were proposed in this pull request?

Apache Spark supports the following cases **by quoting RDD column names** while saving through JDBC.
- Allow reserved keyword as a column name, e.g., 'order'.
- Allow mixed-case colume names like the following, e.g., `[a: int, A: int]`.

  ``` scala
  scala> val df = sql("select 1 a, 1 A")
  df: org.apache.spark.sql.DataFrame = [a: int, A: int]
  ...
  scala> df.write.mode("overwrite").format("jdbc").options(option).save()
  scala> df.write.mode("append").format("jdbc").options(option).save()
  ```

This PR aims to use **database column names** instead of RDD column ones in order to support the following additionally.
Note that this case succeeds with `MySQL`, but fails on `Postgres`/`Oracle` before.

``` scala
val df1 = sql("select 1 a")
val df2 = sql("select 1 A")
...
df1.write.mode("overwrite").format("jdbc").options(option).save()
df2.write.mode("append").format("jdbc").options(option).save()
```
## How was this patch tested?

Pass the Jenkins test with a new testcase.

Author: Dongjoon Hyun <dongjoon@apache.org>
Author: gatorsmile <gatorsmile@gmail.com>

Closes #15664 from dongjoon-hyun/SPARK-18123.
2016-12-30 10:27:14 -08:00
hyukjinkwon 852782b83c
[SPARK-18922][TESTS] Fix more path-related test failures on Windows
## What changes were proposed in this pull request?

This PR proposes to fix the test failures due to different format of paths on Windows.

Failed tests are as below:

```
ColumnExpressionSuite:
- input_file_name, input_file_block_start, input_file_block_length - FileScanRDD *** FAILED *** (187 milliseconds)
  "file:///C:/projects/spark/target/tmp/spark-0b21b963-6cfa-411c-8d6f-e6a5e1e73bce/part-00001-c083a03a-e55e-4b05-9073-451de352d006.snappy.parquet" did not contain "C:\projects\spark\target\tmp\spark-0b21b963-6cfa-411c-8d6f-e6a5e1e73bce" (ColumnExpressionSuite.scala:545)

- input_file_name, input_file_block_start, input_file_block_length - HadoopRDD *** FAILED *** (172 milliseconds)
  "file:/C:/projects/spark/target/tmp/spark-5d0afa94-7c2f-463b-9db9-2e8403e2bc5f/part-00000-f6530138-9ad3-466d-ab46-0eeb6f85ed0b.txt" did not contain "C:\projects\spark\target\tmp\spark-5d0afa94-7c2f-463b-9db9-2e8403e2bc5f" (ColumnExpressionSuite.scala:569)

- input_file_name, input_file_block_start, input_file_block_length - NewHadoopRDD *** FAILED *** (156 milliseconds)
  "file:/C:/projects/spark/target/tmp/spark-a894c7df-c74d-4d19-82a2-a04744cb3766/part-00000-29674e3f-3fcf-4327-9b04-4dab1d46338d.txt" did not contain "C:\projects\spark\target\tmp\spark-a894c7df-c74d-4d19-82a2-a04744cb3766" (ColumnExpressionSuite.scala:598)
```

```
DataStreamReaderWriterSuite:
- source metadataPath *** FAILED *** (62 milliseconds)
  org.mockito.exceptions.verification.junit.ArgumentsAreDifferent: Argument(s) are different! Wanted:
streamSourceProvider.createSource(
    org.apache.spark.sql.SQLContext3b04133b,
    "C:\projects\spark\target\tmp\streaming.metadata-b05db6ae-c8dc-4ce4-b0d9-1eb8c84876c0/sources/0",
    None,
    "org.apache.spark.sql.streaming.test",
    Map()
);
-> at org.apache.spark.sql.streaming.test.DataStreamReaderWriterSuite$$anonfun$12.apply$mcV$sp(DataStreamReaderWriterSuite.scala:374)
Actual invocation has different arguments:
streamSourceProvider.createSource(
    org.apache.spark.sql.SQLContext3b04133b,
    "/C:/projects/spark/target/tmp/streaming.metadata-b05db6ae-c8dc-4ce4-b0d9-1eb8c84876c0/sources/0",
    None,
    "org.apache.spark.sql.streaming.test",
    Map()
);
```

```
GlobalTempViewSuite:
- CREATE GLOBAL TEMP VIEW USING *** FAILED *** (110 milliseconds)
  org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark  arget mpspark-960398ba-a0a1-45f6-a59a-d98533f9f519;
```

```
CreateTableAsSelectSuite:
- CREATE TABLE USING AS SELECT *** FAILED *** (0 milliseconds)
  java.lang.IllegalArgumentException: Can not create a Path from an empty string

- create a table, drop it and create another one with the same name *** FAILED *** (16 milliseconds)
  java.lang.IllegalArgumentException: Can not create a Path from an empty string

- create table using as select - with partitioned by *** FAILED *** (0 milliseconds)
  java.lang.IllegalArgumentException: Can not create a Path from an empty string

- create table using as select - with non-zero buckets *** FAILED *** (0 milliseconds)
  java.lang.IllegalArgumentException: Can not create a Path from an empty string
```

```
HiveMetadataCacheSuite:
- partitioned table is cached when partition pruning is true *** FAILED *** (532 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- partitioned table is cached when partition pruning is false *** FAILED *** (297 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);
```

```
MultiDatabaseSuite:
- createExternalTable() to non-default database - with USE *** FAILED *** (954 milliseconds)
  org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark  arget mpspark-0839d9a7-5e29-467a-9e3e-3e4cd618ee09;

- createExternalTable() to non-default database - without USE *** FAILED *** (500 milliseconds)
  org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark  arget mpspark-c7e24d73-1d8f-45e8-ab7d-53a83087aec3;

 - invalid database name and table names *** FAILED *** (31 milliseconds)
   "Path does not exist: file:/C:projectsspark  arget mpspark-15a2a494-3483-4876-80e5-ec396e704b77;" did not contain "`t:a` is not a valid name for tables/databases. Valid names only contain alphabet characters, numbers and _." (MultiDatabaseSuite.scala:296)
```

```
OrcQuerySuite:
 - SPARK-8501: Avoids discovery schema from empty ORC files *** FAILED *** (15 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

 - Verify the ORC conversion parameter: CONVERT_METASTORE_ORC *** FAILED *** (78 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

 - converted ORC table supports resolving mixed case field *** FAILED *** (297 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);
```

```
HadoopFsRelationTest - JsonHadoopFsRelationSuite, OrcHadoopFsRelationSuite, ParquetHadoopFsRelationSuite, SimpleTextHadoopFsRelationSuite:
 - Locality support for FileScanRDD *** FAILED *** (15 milliseconds)
   java.lang.IllegalArgumentException: Wrong FS: file://C:\projects\spark\target\tmp\spark-383d1f13-8783-47fd-964d-9c75e5eec50f, expected: file:///
```

```
HiveQuerySuite:
- CREATE TEMPORARY FUNCTION *** FAILED *** (0 milliseconds)
   java.net.MalformedURLException: For input string: "%5Cprojects%5Cspark%5Csql%5Chive%5Ctarget%5Cscala-2.11%5Ctest-classes%5CTestUDTF.jar"

 - ADD FILE command *** FAILED *** (500 milliseconds)
   java.net.URISyntaxException: Illegal character in opaque part at index 2: C:\projects\spark\sql\hive\target\scala-2.11\test-classes\data\files\v1.txt

 - ADD JAR command 2 *** FAILED *** (110 milliseconds)
   org.apache.spark.sql.AnalysisException: LOAD DATA input path does not exist: C:projectssparksqlhive  argetscala-2.11 est-classesdatafilessample.json;
```

```
PruneFileSourcePartitionsSuite:
 - PruneFileSourcePartitions should not change the output of LogicalRelation *** FAILED *** (15 milliseconds)
   org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);
```

```
HiveCommandSuite:
 - LOAD DATA LOCAL *** FAILED *** (109 milliseconds)
   org.apache.spark.sql.AnalysisException: LOAD DATA input path does not exist: C:projectssparksqlhive  argetscala-2.11 est-classesdatafilesemployee.dat;

 - LOAD DATA *** FAILED *** (93 milliseconds)
   java.net.URISyntaxException: Illegal character in opaque part at index 15: C:projectsspark arget mpemployee.dat7496657117354281006.tmp

 - Truncate Table *** FAILED *** (78 milliseconds)
   org.apache.spark.sql.AnalysisException: LOAD DATA input path does not exist: C:projectssparksqlhive  argetscala-2.11 est-classesdatafilesemployee.dat;
```

```
HiveExternalCatalogBackwardCompatibilitySuite:
- make sure we can read table created by old version of Spark *** FAILED *** (0 milliseconds)
  "[/C:/projects/spark/target/tmp/]spark-0554d859-74e1-..." did not equal "[C:\projects\spark\target\tmp\]spark-0554d859-74e1-..." (HiveExternalCatalogBackwardCompatibilitySuite.scala:213)
  org.scalatest.exceptions.TestFailedException

- make sure we can alter table location created by old version of Spark *** FAILED *** (110 milliseconds)
  java.net.URISyntaxException: Illegal character in opaque part at index 15: C:projectsspark	arget	mpspark-0e9b2c5f-49a1-4e38-a32a-c0ab1813a79f
```

```
ExternalCatalogSuite:
- create/drop/rename partitions should create/delete/rename the directory *** FAILED *** (610 milliseconds)
  java.net.URISyntaxException: Illegal character in opaque part at index 2: C:\projects\spark\target\tmp\spark-4c24f010-18df-437b-9fed-990c6f9adece
```

```
SQLQuerySuite:
- describe functions - temporary user defined functions *** FAILED *** (16 milliseconds)
  java.net.URISyntaxException: Illegal character in opaque part at index 22: C:projectssparksqlhive	argetscala-2.11	est-classesTestUDTF.jar

- specifying database name for a temporary table is not allowed *** FAILED *** (125 milliseconds)
  org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-a34c9814-a483-43f2-be29-37f616b6df91;
```

```
PartitionProviderCompatibilitySuite:
- convert partition provider to hive with repair table *** FAILED *** (281 milliseconds)
  org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-ee5fc96d-8c7d-4ebf-8571-a1d62736473e;

- when partition management is enabled, new tables have partition provider hive *** FAILED *** (187 milliseconds)
  org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-803ad4d6-3e8c-498d-9ca5-5cda5d9b2a48;

- when partition management is disabled, new tables have no partition provider *** FAILED *** (172 milliseconds)
  org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-c9fda9e2-4020-465f-8678-52cd72d0a58f;

- when partition management is disabled, we preserve the old behavior even for new tables *** FAILED *** (203 milliseconds)
  org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget
mpspark-f4a518a6-c49d-43d3-b407-0ddd76948e13;

- insert overwrite partition of legacy datasource table *** FAILED *** (188 milliseconds)
  org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-f4a518a6-c49d-43d3-b407-0ddd76948e79;

- insert overwrite partition of new datasource table overwrites just partition *** FAILED *** (219 milliseconds)
  org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-6ba3a88d-6f6c-42c5-a9f4-6d924a0616ff;

- SPARK-18544 append with saveAsTable - partition management true *** FAILED *** (173 milliseconds)
  org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-cd234a6d-9cb4-4d1d-9e51-854ae9543bbd;

- SPARK-18635 special chars in partition values - partition management true *** FAILED *** (2 seconds, 967 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- SPARK-18635 special chars in partition values - partition management false *** FAILED *** (62 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- SPARK-18659 insert overwrite table with lowercase - partition management true *** FAILED *** (63 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- SPARK-18544 append with saveAsTable - partition management false *** FAILED *** (266 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- SPARK-18659 insert overwrite table files - partition management false *** FAILED *** (63 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- SPARK-18659 insert overwrite table with lowercase - partition management false *** FAILED *** (78 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- sanity check table setup *** FAILED *** (31 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- insert into partial dynamic partitions *** FAILED *** (47 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- insert into fully dynamic partitions *** FAILED *** (62 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- insert into static partition *** FAILED *** (78 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- overwrite partial dynamic partitions *** FAILED *** (63 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- overwrite fully dynamic partitions *** FAILED *** (47 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- overwrite static partition *** FAILED *** (63 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);
```

```
MetastoreDataSourcesSuite:
- check change without refresh *** FAILED *** (203 milliseconds)
  org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-00713fe4-ca04-448c-bfc7-6c5e9a2ad2a1;

- drop, change, recreate *** FAILED *** (78 milliseconds)
  org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-2030a21b-7d67-4385-a65b-bb5e2bed4861;

- SPARK-15269 external data source table creation *** FAILED *** (78 milliseconds)
  org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-4d50fd4a-14bc-41d6-9232-9554dd233f86;

- CTAS *** FAILED *** (109 milliseconds)
  java.lang.IllegalArgumentException: Can not create a Path from an empty string

- CTAS with IF NOT EXISTS *** FAILED *** (109 milliseconds)
  java.lang.IllegalArgumentException: Can not create a Path from an empty string

- CTAS: persisted partitioned bucketed data source table *** FAILED *** (0 milliseconds)
  java.lang.IllegalArgumentException: Can not create a Path from an empty string

- SPARK-15025: create datasource table with path with select *** FAILED *** (16 milliseconds)
  java.lang.IllegalArgumentException: Can not create a Path from an empty string

- CTAS: persisted partitioned data source table *** FAILED *** (47 milliseconds)
  java.lang.IllegalArgumentException: Can not create a Path from an empty string
```

```
HiveMetastoreCatalogSuite:
- Persist non-partitioned parquet relation into metastore as managed table using CTAS *** FAILED *** (16 milliseconds)
  java.lang.IllegalArgumentException: Can not create a Path from an empty string

- Persist non-partitioned orc relation into metastore as managed table using CTAS *** FAILED *** (16 milliseconds)
  java.lang.IllegalArgumentException: Can not create a Path from an empty string
```

```
HiveUDFSuite:
- SPARK-11522 select input_file_name from non-parquet table *** FAILED *** (16 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);
```

```
QueryPartitionSuite:
- SPARK-13709: reading partitioned Avro table with nested schema *** FAILED *** (250 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);
```

```
ParquetHiveCompatibilitySuite:
- simple primitives *** FAILED *** (16 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- SPARK-10177 timestamp *** FAILED *** (0 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- array *** FAILED *** (16 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- map *** FAILED *** (16 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- struct *** FAILED *** (0 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);

- SPARK-16344: array of struct with a single field named 'array_element' *** FAILED *** (15 milliseconds)
  org.apache.spark.sql.AnalysisException: org.apache.hadoop.hive.ql.metadata.HiveException: MetaException(message:java.lang.IllegalArgumentException: Can not create a Path from an empty string);
```

## How was this patch tested?

Manually tested via AppVeyor.

```
ColumnExpressionSuite:
- input_file_name, input_file_block_start, input_file_block_length - FileScanRDD (234 milliseconds)
- input_file_name, input_file_block_start, input_file_block_length - HadoopRDD (235 milliseconds)
- input_file_name, input_file_block_start, input_file_block_length - NewHadoopRDD (203 milliseconds)
```

```
DataStreamReaderWriterSuite:
- source metadataPath (63 milliseconds)
```

```
GlobalTempViewSuite:
 - CREATE GLOBAL TEMP VIEW USING (436 milliseconds)
```

```
CreateTableAsSelectSuite:
- CREATE TABLE USING AS SELECT (171 milliseconds)
- create a table, drop it and create another one with the same name (422 milliseconds)
- create table using as select - with partitioned by (141 milliseconds)
- create table using as select - with non-zero buckets (125 milliseconds)
```

```
HiveMetadataCacheSuite:
- partitioned table is cached when partition pruning is true (3 seconds, 211 milliseconds)
- partitioned table is cached when partition pruning is false (1 second, 781 milliseconds)
```

```
MultiDatabaseSuite:
 - createExternalTable() to non-default database - with USE (797 milliseconds)
 - createExternalTable() to non-default database - without USE (640 milliseconds)
 - invalid database name and table names (62 milliseconds)
```

```
OrcQuerySuite:
 - SPARK-8501: Avoids discovery schema from empty ORC files (703 milliseconds)
 - Verify the ORC conversion parameter: CONVERT_METASTORE_ORC (750 milliseconds)
 - converted ORC table supports resolving mixed case field (625 milliseconds)
```

```
HadoopFsRelationTest - JsonHadoopFsRelationSuite, OrcHadoopFsRelationSuite, ParquetHadoopFsRelationSuite, SimpleTextHadoopFsRelationSuite:
 - Locality support for FileScanRDD (296 milliseconds)
```

```
HiveQuerySuite:
 - CREATE TEMPORARY FUNCTION (125 milliseconds)
 - ADD FILE command (250 milliseconds)
 - ADD JAR command 2 (609 milliseconds)
```

```
PruneFileSourcePartitionsSuite:
- PruneFileSourcePartitions should not change the output of LogicalRelation (359 milliseconds)
```

```
HiveCommandSuite:
 - LOAD DATA LOCAL (1 second, 829 milliseconds)
 - LOAD DATA (1 second, 735 milliseconds)
 - Truncate Table (1 second, 641 milliseconds)
```

```
HiveExternalCatalogBackwardCompatibilitySuite:
 - make sure we can read table created by old version of Spark (32 milliseconds)
 - make sure we can alter table location created by old version of Spark (125 milliseconds)
 - make sure we can rename table created by old version of Spark (281 milliseconds)
```

```
ExternalCatalogSuite:
- create/drop/rename partitions should create/delete/rename the directory (625 milliseconds)
```

```
SQLQuerySuite:
- describe functions - temporary user defined functions (31 milliseconds)
- specifying database name for a temporary table is not allowed (390 milliseconds)
```

```
PartitionProviderCompatibilitySuite:
 - convert partition provider to hive with repair table (813 milliseconds)
 - when partition management is enabled, new tables have partition provider hive (562 milliseconds)
 - when partition management is disabled, new tables have no partition provider (344 milliseconds)
 - when partition management is disabled, we preserve the old behavior even for new tables (422 milliseconds)
 - insert overwrite partition of legacy datasource table (750 milliseconds)
 - SPARK-18544 append with saveAsTable - partition management true (985 milliseconds)
 - SPARK-18635 special chars in partition values - partition management true (3 seconds, 328 milliseconds)
 - SPARK-18635 special chars in partition values - partition management false (2 seconds, 891 milliseconds)
 - SPARK-18659 insert overwrite table with lowercase - partition management true (750 milliseconds)
 - SPARK-18544 append with saveAsTable - partition management false (656 milliseconds)
 - SPARK-18659 insert overwrite table files - partition management false (922 milliseconds)
 - SPARK-18659 insert overwrite table with lowercase - partition management false (469 milliseconds)
 - sanity check table setup (937 milliseconds)
 - insert into partial dynamic partitions (2 seconds, 985 milliseconds)
 - insert into fully dynamic partitions (1 second, 937 milliseconds)
 - insert into static partition (1 second, 578 milliseconds)
 - overwrite partial dynamic partitions (7 seconds, 561 milliseconds)
 - overwrite fully dynamic partitions (1 second, 766 milliseconds)
 - overwrite static partition (1 second, 797 milliseconds)
```

```
MetastoreDataSourcesSuite:
 - check change without refresh (610 milliseconds)
 - drop, change, recreate (437 milliseconds)
 - SPARK-15269 external data source table creation (297 milliseconds)
 - CTAS with IF NOT EXISTS (437 milliseconds)
 - CTAS: persisted partitioned bucketed data source table (422 milliseconds)
 - SPARK-15025: create datasource table with path with select (265 milliseconds)
 - CTAS (438 milliseconds)
 - CTAS with IF NOT EXISTS (469 milliseconds)
 - CTAS: persisted partitioned bucketed data source table (406 milliseconds)
```

```
HiveMetastoreCatalogSuite:
 - Persist non-partitioned parquet relation into metastore as managed table using CTAS (406 milliseconds)
 - Persist non-partitioned orc relation into metastore as managed table using CTAS (313 milliseconds)
```

```
HiveUDFSuite:
 - SPARK-11522 select input_file_name from non-parquet table (3 seconds, 144 milliseconds)
```

```
QueryPartitionSuite:
 - SPARK-13709: reading partitioned Avro table with nested schema (1 second, 67 milliseconds)
```

```
ParquetHiveCompatibilitySuite:
 - simple primitives (745 milliseconds)
 - SPARK-10177 timestamp (375 milliseconds)
 - array (407 milliseconds)
 - map (409 milliseconds)
 - struct (437 milliseconds)
 - SPARK-16344: array of struct with a single field named 'array_element' (391 milliseconds)
```

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #16397 from HyukjinKwon/SPARK-18922-paths.
2016-12-30 11:16:03 +00:00
Dongjoon Hyun 752d9eeb9b [SPARK-19012][SQL] Fix createTempViewCommand to throw AnalysisException instead of ParseException
## What changes were proposed in this pull request?

Currently, `createTempView`, `createOrReplaceTempView`, and `createGlobalTempView` show `ParseExceptions` on invalid table names. We had better show better error message. Also, this PR also adds and updates the missing description on the API docs correctly.

**BEFORE**
```
scala> spark.range(10).createOrReplaceTempView("11111")
org.apache.spark.sql.catalyst.parser.ParseException:
mismatched input '11111' expecting {'SELECT', 'FROM', 'ADD', ...}(line 1, pos 0)

== SQL ==
11111
...
```

**AFTER**
```
scala> spark.range(10).createOrReplaceTempView("11111")
org.apache.spark.sql.AnalysisException: Invalid view name: 11111;
...
```

## How was this patch tested?

Pass the Jenkins with updated a test case.

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #16427 from dongjoon-hyun/SPARK-19012.
2016-12-29 21:22:13 +01:00
Wenchen Fan 7d19b6ab7d [SPARK-18567][SQL] Simplify CreateDataSourceTableAsSelectCommand
## What changes were proposed in this pull request?

The `CreateDataSourceTableAsSelectCommand` is quite complex now, as it has a lot of work to do if the table already exists:

1. throw exception if we don't want to ignore it.
2. do some check and adjust the schema if we want to append data.
3. drop the table and create it again if we want to overwrite.

The work 2 and 3 should be done by analyzer, so that we can also apply it to hive tables.

## How was this patch tested?

existing tests.

Author: Wenchen Fan <wenchen@databricks.com>

Closes #15996 from cloud-fan/append.
2016-12-28 21:50:21 -08:00
Kazuaki Ishizaki 93f35569fd [SPARK-16213][SQL] Reduce runtime overhead of a program that creates an primitive array in DataFrame
## What changes were proposed in this pull request?

This PR reduces runtime overhead of a program the creates an primitive array in DataFrame by using the similar approach to #15044. Generated code performs boxing operation in an assignment from InternalRow to an `Object[]` temporary array (at Lines 051 and 061 in the generated code before without this PR). If we know that type of array elements is primitive, we apply the following optimizations:
1. Eliminate a pair of `isNullAt()` and a null assignment
2. Allocate an primitive array instead of `Object[]` (eliminate boxing operations)
3. Create `UnsafeArrayData` by using `UnsafeArrayWriter` to keep a primitive array in a row format instead of doing non-lightweight operations in constructor of `GenericArrayData`
The PR also performs the same things for `CreateMap`.

Here are performance results of [DataFrame programs](6bf54ec5e2/sql/core/src/test/scala/org/apache/spark/sql/execution/benchmark/PrimitiveArrayBenchmark.scala (L83-L112)) by up to 17.9x over without this PR.

```
Without SPARK-16043
OpenJDK 64-Bit Server VM 1.8.0_91-b14 on Linux 4.4.11-200.fc22.x86_64
Intel Xeon E3-12xx v2 (Ivy Bridge)
Read a primitive array in DataFrame:     Best/Avg Time(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------
Int                                           3805 / 4150          0.0      507308.9       1.0X
Double                                        3593 / 3852          0.0      479056.9       1.1X

With SPARK-16043
Read a primitive array in DataFrame:     Best/Avg Time(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------
Int                                            213 /  271          0.0       28387.5       1.0X
Double                                         204 /  223          0.0       27250.9       1.0X
```
Note : #15780 is enabled for these measurements

An motivating example

``` java
val df = sparkContext.parallelize(Seq(0.0d, 1.0d), 1).toDF
df.selectExpr("Array(value + 1.1d, value + 2.2d)").show
```

Generated code without this PR

``` java
/* 005 */ final class GeneratedIterator extends org.apache.spark.sql.execution.BufferedRowIterator {
/* 006 */   private Object[] references;
/* 007 */   private scala.collection.Iterator[] inputs;
/* 008 */   private scala.collection.Iterator inputadapter_input;
/* 009 */   private UnsafeRow serializefromobject_result;
/* 010 */   private org.apache.spark.sql.catalyst.expressions.codegen.BufferHolder serializefromobject_holder;
/* 011 */   private org.apache.spark.sql.catalyst.expressions.codegen.UnsafeRowWriter serializefromobject_rowWriter;
/* 012 */   private Object[] project_values;
/* 013 */   private UnsafeRow project_result;
/* 014 */   private org.apache.spark.sql.catalyst.expressions.codegen.BufferHolder project_holder;
/* 015 */   private org.apache.spark.sql.catalyst.expressions.codegen.UnsafeRowWriter project_rowWriter;
/* 016 */   private org.apache.spark.sql.catalyst.expressions.codegen.UnsafeArrayWriter project_arrayWriter;
/* 017 */
/* 018 */   public GeneratedIterator(Object[] references) {
/* 019 */     this.references = references;
/* 020 */   }
/* 021 */
/* 022 */   public void init(int index, scala.collection.Iterator[] inputs) {
/* 023 */     partitionIndex = index;
/* 024 */     this.inputs = inputs;
/* 025 */     inputadapter_input = inputs[0];
/* 026 */     serializefromobject_result = new UnsafeRow(1);
/* 027 */     this.serializefromobject_holder = new org.apache.spark.sql.catalyst.expressions.codegen.BufferHolder(serializefromobject_result, 0);
/* 028 */     this.serializefromobject_rowWriter = new org.apache.spark.sql.catalyst.expressions.codegen.UnsafeRowWriter(serializefromobject_holder, 1);
/* 029 */     this.project_values = null;
/* 030 */     project_result = new UnsafeRow(1);
/* 031 */     this.project_holder = new org.apache.spark.sql.catalyst.expressions.codegen.BufferHolder(project_result, 32);
/* 032 */     this.project_rowWriter = new org.apache.spark.sql.catalyst.expressions.codegen.UnsafeRowWriter(project_holder, 1);
/* 033 */     this.project_arrayWriter = new org.apache.spark.sql.catalyst.expressions.codegen.UnsafeArrayWriter();
/* 034 */
/* 035 */   }
/* 036 */
/* 037 */   protected void processNext() throws java.io.IOException {
/* 038 */     while (inputadapter_input.hasNext()) {
/* 039 */       InternalRow inputadapter_row = (InternalRow) inputadapter_input.next();
/* 040 */       double inputadapter_value = inputadapter_row.getDouble(0);
/* 041 */
/* 042 */       final boolean project_isNull = false;
/* 043 */       this.project_values = new Object[2];
/* 044 */       boolean project_isNull1 = false;
/* 045 */
/* 046 */       double project_value1 = -1.0;
/* 047 */       project_value1 = inputadapter_value + 1.1D;
/* 048 */       if (false) {
/* 049 */         project_values[0] = null;
/* 050 */       } else {
/* 051 */         project_values[0] = project_value1;
/* 052 */       }
/* 053 */
/* 054 */       boolean project_isNull4 = false;
/* 055 */
/* 056 */       double project_value4 = -1.0;
/* 057 */       project_value4 = inputadapter_value + 2.2D;
/* 058 */       if (false) {
/* 059 */         project_values[1] = null;
/* 060 */       } else {
/* 061 */         project_values[1] = project_value4;
/* 062 */       }
/* 063 */
/* 064 */       final ArrayData project_value = new org.apache.spark.sql.catalyst.util.GenericArrayData(project_values);
/* 065 */       this.project_values = null;
/* 066 */       project_holder.reset();
/* 067 */
/* 068 */       project_rowWriter.zeroOutNullBytes();
/* 069 */
/* 070 */       if (project_isNull) {
/* 071 */         project_rowWriter.setNullAt(0);
/* 072 */       } else {
/* 073 */         // Remember the current cursor so that we can calculate how many bytes are
/* 074 */         // written later.
/* 075 */         final int project_tmpCursor = project_holder.cursor;
/* 076 */
/* 077 */         if (project_value instanceof UnsafeArrayData) {
/* 078 */           final int project_sizeInBytes = ((UnsafeArrayData) project_value).getSizeInBytes();
/* 079 */           // grow the global buffer before writing data.
/* 080 */           project_holder.grow(project_sizeInBytes);
/* 081 */           ((UnsafeArrayData) project_value).writeToMemory(project_holder.buffer, project_holder.cursor);
/* 082 */           project_holder.cursor += project_sizeInBytes;
/* 083 */
/* 084 */         } else {
/* 085 */           final int project_numElements = project_value.numElements();
/* 086 */           project_arrayWriter.initialize(project_holder, project_numElements, 8);
/* 087 */
/* 088 */           for (int project_index = 0; project_index < project_numElements; project_index++) {
/* 089 */             if (project_value.isNullAt(project_index)) {
/* 090 */               project_arrayWriter.setNullDouble(project_index);
/* 091 */             } else {
/* 092 */               final double project_element = project_value.getDouble(project_index);
/* 093 */               project_arrayWriter.write(project_index, project_element);
/* 094 */             }
/* 095 */           }
/* 096 */         }
/* 097 */
/* 098 */         project_rowWriter.setOffsetAndSize(0, project_tmpCursor, project_holder.cursor - project_tmpCursor);
/* 099 */       }
/* 100 */       project_result.setTotalSize(project_holder.totalSize());
/* 101 */       append(project_result);
/* 102 */       if (shouldStop()) return;
/* 103 */     }
/* 104 */   }
/* 105 */ }
```

Generated code with this PR

``` java
/* 005 */ final class GeneratedIterator extends org.apache.spark.sql.execution.BufferedRowIterator {
/* 006 */   private Object[] references;
/* 007 */   private scala.collection.Iterator[] inputs;
/* 008 */   private scala.collection.Iterator inputadapter_input;
/* 009 */   private UnsafeRow serializefromobject_result;
/* 010 */   private org.apache.spark.sql.catalyst.expressions.codegen.BufferHolder serializefromobject_holder;
/* 011 */   private org.apache.spark.sql.catalyst.expressions.codegen.UnsafeRowWriter serializefromobject_rowWriter;
/* 012 */   private UnsafeArrayData project_arrayData;
/* 013 */   private UnsafeRow project_result;
/* 014 */   private org.apache.spark.sql.catalyst.expressions.codegen.BufferHolder project_holder;
/* 015 */   private org.apache.spark.sql.catalyst.expressions.codegen.UnsafeRowWriter project_rowWriter;
/* 016 */   private org.apache.spark.sql.catalyst.expressions.codegen.UnsafeArrayWriter project_arrayWriter;
/* 017 */
/* 018 */   public GeneratedIterator(Object[] references) {
/* 019 */     this.references = references;
/* 020 */   }
/* 021 */
/* 022 */   public void init(int index, scala.collection.Iterator[] inputs) {
/* 023 */     partitionIndex = index;
/* 024 */     this.inputs = inputs;
/* 025 */     inputadapter_input = inputs[0];
/* 026 */     serializefromobject_result = new UnsafeRow(1);
/* 027 */     this.serializefromobject_holder = new org.apache.spark.sql.catalyst.expressions.codegen.BufferHolder(serializefromobject_result, 0);
/* 028 */     this.serializefromobject_rowWriter = new org.apache.spark.sql.catalyst.expressions.codegen.UnsafeRowWriter(serializefromobject_holder, 1);
/* 029 */
/* 030 */     project_result = new UnsafeRow(1);
/* 031 */     this.project_holder = new org.apache.spark.sql.catalyst.expressions.codegen.BufferHolder(project_result, 32);
/* 032 */     this.project_rowWriter = new org.apache.spark.sql.catalyst.expressions.codegen.UnsafeRowWriter(project_holder, 1);
/* 033 */     this.project_arrayWriter = new org.apache.spark.sql.catalyst.expressions.codegen.UnsafeArrayWriter();
/* 034 */
/* 035 */   }
/* 036 */
/* 037 */   protected void processNext() throws java.io.IOException {
/* 038 */     while (inputadapter_input.hasNext()) {
/* 039 */       InternalRow inputadapter_row = (InternalRow) inputadapter_input.next();
/* 040 */       double inputadapter_value = inputadapter_row.getDouble(0);
/* 041 */
/* 042 */       byte[] project_array = new byte[32];
/* 043 */       project_arrayData = new UnsafeArrayData();
/* 044 */       Platform.putLong(project_array, 16, 2);
/* 045 */       project_arrayData.pointTo(project_array, 16, 32);
/* 046 */
/* 047 */       boolean project_isNull1 = false;
/* 048 */
/* 049 */       double project_value1 = -1.0;
/* 050 */       project_value1 = inputadapter_value + 1.1D;
/* 051 */       if (false) {
/* 052 */         project_arrayData.setNullAt(0);
/* 053 */       } else {
/* 054 */         project_arrayData.setDouble(0, project_value1);
/* 055 */       }
/* 056 */
/* 057 */       boolean project_isNull4 = false;
/* 058 */
/* 059 */       double project_value4 = -1.0;
/* 060 */       project_value4 = inputadapter_value + 2.2D;
/* 061 */       if (false) {
/* 062 */         project_arrayData.setNullAt(1);
/* 063 */       } else {
/* 064 */         project_arrayData.setDouble(1, project_value4);
/* 065 */       }
/* 066 */       project_holder.reset();
/* 067 */
/* 068 */       // Remember the current cursor so that we can calculate how many bytes are
/* 069 */       // written later.
/* 070 */       final int project_tmpCursor = project_holder.cursor;
/* 071 */
/* 072 */       if (project_arrayData instanceof UnsafeArrayData) {
/* 073 */         final int project_sizeInBytes = ((UnsafeArrayData) project_arrayData).getSizeInBytes();
/* 074 */         // grow the global buffer before writing data.
/* 075 */         project_holder.grow(project_sizeInBytes);
/* 076 */         ((UnsafeArrayData) project_arrayData).writeToMemory(project_holder.buffer, project_holder.cursor);
/* 077 */         project_holder.cursor += project_sizeInBytes;
/* 078 */
/* 079 */       } else {
/* 080 */         final int project_numElements = project_arrayData.numElements();
/* 081 */         project_arrayWriter.initialize(project_holder, project_numElements, 8);
/* 082 */
/* 083 */         for (int project_index = 0; project_index < project_numElements; project_index++) {
/* 084 */           if (project_arrayData.isNullAt(project_index)) {
/* 085 */             project_arrayWriter.setNullDouble(project_index);
/* 086 */           } else {
/* 087 */             final double project_element = project_arrayData.getDouble(project_index);
/* 088 */             project_arrayWriter.write(project_index, project_element);
/* 089 */           }
/* 090 */         }
/* 091 */       }
/* 092 */
/* 093 */       project_rowWriter.setOffsetAndSize(0, project_tmpCursor, project_holder.cursor - project_tmpCursor);
/* 094 */       project_result.setTotalSize(project_holder.totalSize());
/* 095 */       append(project_result);
/* 096 */       if (shouldStop()) return;
/* 097 */     }
/* 098 */   }
/* 099 */ }
```
## How was this patch tested?

Added unit tests into `DataFrameComplexTypeSuite`

Author: Kazuaki Ishizaki <ishizaki@jp.ibm.com>
Author: Liang-Chi Hsieh <viirya@gmail.com>

Closes #13909 from kiszk/SPARK-16213.
2016-12-29 10:59:37 +08:00
Carson Wang 2a5f52a714
[MINOR][DOC] Fix doc of ForeachWriter to use writeStream
## What changes were proposed in this pull request?

Fix the document of `ForeachWriter` to use `writeStream` instead of `write` for a streaming dataset.

## How was this patch tested?
Docs only.

Author: Carson Wang <carson.wang@intel.com>

Closes #16419 from carsonwang/FixDoc.
2016-12-28 12:12:44 +00:00
uncleGen 76e9bd7488
[SPARK-18960][SQL][SS] Avoid double reading file which is being copied.
## What changes were proposed in this pull request?

In HDFS, when we copy a file into target directory, there will a temporary `._COPY_` file for a period of time. The duration depends on file size. If we do not skip this file, we will may read the same data for two times.

## How was this patch tested?
update unit test

Author: uncleGen <hustyugm@gmail.com>

Closes #16370 from uncleGen/SPARK-18960.
2016-12-28 10:42:47 +00:00
gatorsmile 5ac62043cf [SPARK-18992][SQL] Move spark.sql.hive.thriftServer.singleSession to SQLConf
### What changes were proposed in this pull request?

Since `spark.sql.hive.thriftServer.singleSession` is a configuration of SQL component, this conf can be moved from `SparkConf` to `StaticSQLConf`.

When we introduced `spark.sql.hive.thriftServer.singleSession`, all the SQL configuration are session specific. They can be modified in different sessions.

In Spark 2.1, static SQL configuration is added. It is a perfect fit for `spark.sql.hive.thriftServer.singleSession`. Previously, we did the same move for `spark.sql.warehouse.dir` from `SparkConf` to `StaticSQLConf`

### How was this patch tested?
Added test cases in HiveThriftServer2Suites.scala

Author: gatorsmile <gatorsmile@gmail.com>

Closes #16392 from gatorsmile/hiveThriftServerSingleSession.
2016-12-28 10:16:22 +08:00
Yin Huai 2404d8e54b Revert "[SPARK-18990][SQL] make DatasetBenchmark fairer for Dataset"
This reverts commit a05cc425a0.
2016-12-27 10:03:52 -08:00
Wenchen Fan a05cc425a0 [SPARK-18990][SQL] make DatasetBenchmark fairer for Dataset
## What changes were proposed in this pull request?

Currently `DatasetBenchmark` use `case class Data(l: Long, s: String)` as the record type of `RDD` and `Dataset`, which introduce serialization overhead only to `Dataset` and is unfair.

This PR use `Long` as the record type, to be fairer for `Dataset`

## How was this patch tested?

existing tests

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16391 from cloud-fan/benchmark.
2016-12-27 22:42:28 +08:00
Dongjoon Hyun c2a2069dae [SPARK-19004][SQL] Fix JDBCWriteSuite.testH2Dialect by removing getCatalystType
## What changes were proposed in this pull request?

`JDBCSuite` and `JDBCWriterSuite` have their own `testH2Dialect`s for their testing purposes.

This PR fixes `testH2Dialect` in `JDBCWriterSuite` by removing `getCatalystType` implementation in order to return correct types. Currently, it always returns `Some(StringType)` incorrectly. Note that, for the `testH2Dialect` in `JDBCSuite`, it's intentional because of the test case `Remap types via JdbcDialects`.

## How was this patch tested?

This is a test only update.

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #16409 from dongjoon-hyun/SPARK-H2-DIALECT.
2016-12-27 06:26:56 -08:00
Wenchen Fan 8a7db8a608 [SPARK-18980][SQL] implement Aggregator with TypedImperativeAggregate
## What changes were proposed in this pull request?

Currently we implement `Aggregator` with `DeclarativeAggregate`, which will serialize/deserialize the buffer object every time we process an input.

This PR implements `Aggregator` with `TypedImperativeAggregate` and avoids to serialize/deserialize buffer object many times. The benchmark shows we get about 2 times speed up.

For simple buffer object that doesn't need serialization, we still go with `DeclarativeAggregate`, to avoid performance regression.

## How was this patch tested?

N/A

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16383 from cloud-fan/aggregator.
2016-12-26 22:10:20 +08:00
hyukjinkwon d6cbec7598 [SPARK-18943][SQL] Avoid per-record type dispatch in CSV when reading
## What changes were proposed in this pull request?

`CSVRelation.csvParser` does type dispatch for each value in each row. We can prevent this because the schema is already kept in `CSVRelation`.

So, this PR proposes that converters are created first according to the schema, and then apply them to each.

I just ran some small benchmarks as below after resembling the logics in 7c33b0fd05/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/csv/CSVFileFormat.scala (L170-L178) to test the updated logics.

```scala
test("Benchmark for CSV converter") {
  var numMalformedRecords = 0
  val N = 500 << 12
  val schema = StructType(
    StructField("a", StringType) ::
    StructField("b", StringType) ::
    StructField("c", StringType) ::
    StructField("d", StringType) :: Nil)

  val row = Array("1.0", "test", "2015-08-20 14:57:00", "FALSE")
  val data = spark.sparkContext.parallelize(List.fill(N)(row))
  val parser = CSVRelation.csvParser(schema, schema.fieldNames, CSVOptions())

  val benchmark = new Benchmark("CSV converter", N)
  benchmark.addCase("cast CSV string tokens", 10) { _ =>
    data.flatMap { recordTokens =>
      parser(recordTokens, numMalformedRecords)
    }.collect()
  }
  benchmark.run()
}
```

**Before**

```
CSV converter:                           Best/Avg Time(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------
cast CSV string tokens                        1061 / 1130          1.9         517.9       1.0X
```

**After**

```
CSV converter:                           Best/Avg Time(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------
cast CSV string tokens                         940 / 1011          2.2         459.2       1.0X
```

## How was this patch tested?

Tests in `CSVTypeCastSuite` and `CSVRelation`

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #16351 from HyukjinKwon/type-dispatch.
2016-12-24 23:28:34 +08:00
Liang-Chi Hsieh 07fcbea516
[SPARK-18800][SQL] Correct the assert in UnsafeKVExternalSorter which ensures array size
## What changes were proposed in this pull request?

`UnsafeKVExternalSorter` uses `UnsafeInMemorySorter` to sort the records of `BytesToBytesMap` if it is given a map.

Currently we use the number of keys in `BytesToBytesMap` to determine if the array used for sort is enough or not. We has an assert that ensures the size of the array is enough: `map.numKeys() <= map.getArray().size() / 2`.

However, each record in the map takes two entries in the array, one is record pointer, another is key prefix. So the correct assert should be `map.numKeys() * 2 <= map.getArray().size() / 2`.

## How was this patch tested?

N/A

Please review http://spark.apache.org/contributing.html before opening a pull request.

Author: Liang-Chi Hsieh <viirya@gmail.com>

Closes #16232 from viirya/SPARK-18800-fix-UnsafeKVExternalSorter.
2016-12-24 12:05:49 +00:00
wangzhenhua 3cff816157 [SPARK-18911][SQL] Define CatalogStatistics to interact with metastore and convert it to Statistics in relations
## What changes were proposed in this pull request?

Statistics in LogicalPlan should use attributes to refer to columns rather than column names, because two columns from two relations can have the same column name. But CatalogTable doesn't have the concepts of attribute or broadcast hint in Statistics. Therefore, putting Statistics in CatalogTable is confusing.

We define a different statistic structure in CatalogTable, which is only responsible for interacting with metastore, and is converted to statistics in LogicalPlan when it is used.

## How was this patch tested?

add test cases

Author: wangzhenhua <wangzhenhua@huawei.com>
Author: Zhenhua Wang <wzh_zju@163.com>

Closes #16323 from wzhfy/nameToAttr.
2016-12-24 15:34:44 +08:00
Shixiong Zhu 2246ce88ae [SPARK-18985][SS] Add missing @InterfaceStability.Evolving for Structured Streaming APIs
## What changes were proposed in this pull request?

Add missing InterfaceStability.Evolving for Structured Streaming APIs

## How was this patch tested?

Compiling the codes.

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16385 from zsxwing/SPARK-18985.
2016-12-22 16:21:09 -08:00
Reynold Xin 2615100055 [SPARK-18973][SQL] Remove SortPartitions and RedistributeData
## What changes were proposed in this pull request?
SortPartitions and RedistributeData logical operators are not actually used and can be removed. Note that we do have a Sort operator (with global flag false) that subsumed SortPartitions.

## How was this patch tested?
Also updated test cases to reflect the removal.

Author: Reynold Xin <rxin@databricks.com>

Closes #16381 from rxin/SPARK-18973.
2016-12-22 19:35:09 +01:00
hyukjinkwon 76622c661f [SPARK-16975][SQL][FOLLOWUP] Do not duplicately check file paths in data sources implementing FileFormat
## What changes were proposed in this pull request?

This PR cleans up duplicated checking for file paths in implemented data sources and prevent to attempt to list twice in ORC data source.

https://github.com/apache/spark/pull/14585 handles a problem for the partition column name having `_` and the issue itself is resolved correctly. However, it seems the data sources implementing `FileFormat` are validating the paths duplicately. Assuming from the comment in `CSVFileFormat`, `// TODO: Move filtering.`, I guess we don't have to check this duplicately.

   Currently, this seems being filtered in `PartitioningAwareFileIndex.shouldFilterOut` and`PartitioningAwareFileIndex.isDataPath`. So, `FileFormat.inferSchema` will always receive leaf files. For example, running to codes below:

   ``` scala
   spark.range(10).withColumn("_locality_code", $"id").write.partitionBy("_locality_code").save("/tmp/parquet")
   spark.read.parquet("/tmp/parquet")
   ```

   gives the paths below without directories but just valid data files:

   ``` bash
   /tmp/parquet/_col=0/part-r-00000-094a8efa-bece-4b50-b54c-7918d1f7b3f8.snappy.parquet
   /tmp/parquet/_col=1/part-r-00000-094a8efa-bece-4b50-b54c-7918d1f7b3f8.snappy.parquet
   /tmp/parquet/_col=2/part-r-00000-25de2b50-225a-4bcf-a2bc-9eb9ed407ef6.snappy.parquet
   ...
   ```

   to `FileFormat.inferSchema`.

## How was this patch tested?

Unit test added in `HadoopFsRelationTest` and related existing tests.

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #14627 from HyukjinKwon/SPARK-16975.
2016-12-22 10:00:20 -08:00
hyukjinkwon 4186aba632
[SPARK-18922][TESTS] Fix more resource-closing-related and path-related test failures in identified ones on Windows
## What changes were proposed in this pull request?

There are several tests failing due to resource-closing-related and path-related  problems on Windows as below.

- `SQLQuerySuite`:

```
- specifying database name for a temporary table is not allowed *** FAILED *** (125 milliseconds)
  org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark  arget mpspark-1f4471ab-aac0-4239-ae35-833d54b37e52;
  at org.apache.spark.sql.execution.datasources.DataSource$$anonfun$14.apply(DataSource.scala:382)
  at org.apache.spark.sql.execution.datasources.DataSource$$anonfun$14.apply(DataSource.scala:370)
```

- `JsonSuite`:

```
- Loading a JSON dataset from a text file with SQL *** FAILED *** (94 milliseconds)
  org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark  arget mpspark-c918a8b7-fc09-433c-b9d0-36c0f78ae918;
  at org.apache.spark.sql.execution.datasources.DataSource$$anonfun$14.apply(DataSource.scala:382)
  at org.apache.spark.sql.execution.datasources.DataSource$$anonfun$14.apply(DataSource.scala:370)
```

- `StateStoreSuite`:

```
- SPARK-18342: commit fails when rename fails *** FAILED *** (16 milliseconds)
  java.lang.IllegalArgumentException: java.net.URISyntaxException: Relative path in absolute URI: StateStoreSuite29777261fs://C:%5Cprojects%5Cspark%5Ctarget%5Ctmp%5Cspark-ef349862-7281-4963-aaf3-add0d670a4ad%5C?????-2218c2f8-2cf6-4f80-9cdf-96354e8246a77685899733421033312/0
  at org.apache.hadoop.fs.Path.initialize(Path.java:206)
  at org.apache.hadoop.fs.Path.<init>(Path.java:116)
  at org.apache.hadoop.fs.Path.<init>(Path.java:89)
  ...
  Cause: java.net.URISyntaxException: Relative path in absolute URI: StateStoreSuite29777261fs://C:%5Cprojects%5Cspark%5Ctarget%5Ctmp%5Cspark-ef349862-7281-4963-aaf3-add0d670a4ad%5C?????-2218c2f8-2cf6-4f80-9cdf-96354e8246a77685899733421033312/0
  at java.net.URI.checkPath(URI.java:1823)
  at java.net.URI.<init>(URI.java:745)
  at org.apache.hadoop.fs.Path.initialize(Path.java:203)
```

- `HDFSMetadataLogSuite`:

```
- FileManager: FileContextManager *** FAILED *** (94 milliseconds)
  java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-415bb0bd-396b-444d-be82-04599e025f21
  at org.apache.spark.util.Utils$.deleteRecursively(Utils.scala:1010)
  at org.apache.spark.sql.test.SQLTestUtils$class.withTempDir(SQLTestUtils.scala:127)
  at org.apache.spark.sql.execution.streaming.HDFSMetadataLogSuite.withTempDir(HDFSMetadataLogSuite.scala:38)

- FileManager: FileSystemManager *** FAILED *** (78 milliseconds)
  java.io.IOException: Failed to delete: C:\projects\spark\target\tmp\spark-ef8222cd-85aa-47c0-a396-bc7979e15088
  at org.apache.spark.util.Utils$.deleteRecursively(Utils.scala:1010)
  at org.apache.spark.sql.test.SQLTestUtils$class.withTempDir(SQLTestUtils.scala:127)
  at org.apache.spark.sql.execution.streaming.HDFSMetadataLogSuite.withTempDir(HDFSMetadataLogSuite.scala:38)
```

And, there are some tests being failed due to the length limitation on cmd in Windows as below:

- `LauncherBackendSuite`:

```
- local: launcher handle *** FAILED *** (30 seconds, 120 milliseconds)
  The code passed to eventually never returned normally. Attempted 283 times over 30.0960053 seconds. Last failure message: The reference was null. (LauncherBackendSuite.scala:56)
  org.scalatest.exceptions.TestFailedDueToTimeoutException:
  at org.scalatest.concurrent.Eventually$class.tryTryAgain$1(Eventually.scala:420)
  at org.scalatest.concurrent.Eventually$class.eventually(Eventually.scala:438)

- standalone/client: launcher handle *** FAILED *** (30 seconds, 47 milliseconds)
  The code passed to eventually never returned normally. Attempted 282 times over 30.037987100000002 seconds. Last failure message: The reference was null. (LauncherBackendSuite.scala:56)
  org.scalatest.exceptions.TestFailedDueToTimeoutException:
  at org.scalatest.concurrent.Eventually$class.tryTryAgain$1(Eventually.scala:420)
  at org.scalatest.concurrent.Eventually$class.eventually(Eventually.scala:438)
```

The executed command is, https://gist.github.com/HyukjinKwon/d3fdd2e694e5c022992838a618a516bd, which is 16K length; however, the length limitation is 8K on Windows. So, it is being failed to launch.

This PR proposes to fix the test failures on Windows and skip the tests failed due to the length limitation

## How was this patch tested?

Manually tested via AppVeyor

**Before**

`SQLQuerySuite `: https://ci.appveyor.com/project/spark-test/spark/build/306-pr-references
`JsonSuite`: https://ci.appveyor.com/project/spark-test/spark/build/307-pr-references
`StateStoreSuite` : https://ci.appveyor.com/project/spark-test/spark/build/305-pr-references
`HDFSMetadataLogSuite`: https://ci.appveyor.com/project/spark-test/spark/build/304-pr-references
`LauncherBackendSuite`: https://ci.appveyor.com/project/spark-test/spark/build/303-pr-references

**After**

`SQLQuerySuite`: https://ci.appveyor.com/project/spark-test/spark/build/293-SQLQuerySuite
`JsonSuite`: https://ci.appveyor.com/project/spark-test/spark/build/294-JsonSuite
`StateStoreSuite`: https://ci.appveyor.com/project/spark-test/spark/build/297-StateStoreSuite
`HDFSMetadataLogSuite`: https://ci.appveyor.com/project/spark-test/spark/build/319-pr-references
`LauncherBackendSuite`: failed test skipped.

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #16335 from HyukjinKwon/more-fixes-on-windows.
2016-12-22 16:15:54 +00:00
Reynold Xin 2e861df96e [DOC] bucketing is applicable to all file-based data sources
## What changes were proposed in this pull request?
Starting Spark 2.1.0, bucketing feature is available for all file-based data sources. This patch fixes some function docs that haven't yet been updated to reflect that.

## How was this patch tested?
N/A

Author: Reynold Xin <rxin@databricks.com>

Closes #16349 from rxin/ds-doc.
2016-12-21 23:46:33 -08:00
Reynold Xin 7c5b7b3a2e [SQL] Minor readability improvement for partition handling code
## What changes were proposed in this pull request?
This patch includes minor changes to improve readability for partition handling code. I'm in the middle of implementing some new feature and found some naming / implicit type inference not as intuitive.

## How was this patch tested?
This patch should have no semantic change and the changes should be covered by existing test cases.

Author: Reynold Xin <rxin@databricks.com>

Closes #16378 from rxin/minor-fix.
2016-12-22 15:29:56 +08:00
Shixiong Zhu ff7d82a207 [SPARK-18908][SS] Creating StreamingQueryException should check if logicalPlan is created
## What changes were proposed in this pull request?

This PR audits places using `logicalPlan` in StreamExecution and ensures they all handles the case that `logicalPlan` cannot be created.

In addition, this PR also fixes the following issues in `StreamingQueryException`:
- `StreamingQueryException` and `StreamExecution` are cycle-dependent because in the `StreamingQueryException`'s constructor, it calls `StreamExecution`'s `toDebugString` which uses `StreamingQueryException`. Hence it will output `null` value in the error message.
- Duplicated stack trace when calling Throwable.printStackTrace because StreamingQueryException's toString contains the stack trace.

## How was this patch tested?

The updated `test("max files per trigger - incorrect values")`. I found this issue when I switched from `testStream` to the real codes to verify the failure in this test.

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16322 from zsxwing/SPARK-18907.
2016-12-21 22:02:57 -08:00
Takeshi YAMAMURO b41ec99778 [SPARK-18528][SQL] Fix a bug to initialise an iterator of aggregation buffer
## What changes were proposed in this pull request?
This pr is to fix an `NullPointerException` issue caused by a following `limit + aggregate` query;
```
scala> val df = Seq(("a", 1), ("b", 2), ("c", 1), ("d", 5)).toDF("id", "value")
scala> df.limit(2).groupBy("id").count().show
WARN TaskSetManager: Lost task 0.0 in stage 9.0 (TID 8204, lvsp20hdn012.stubprod.com): java.lang.NullPointerException
at org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIterator.agg_doAggregateWithKeys$(Unknown Source)
at org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIterator.processNext(Unknown Source)
```
The root culprit is that [`$doAgg()`](https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/aggregate/HashAggregateExec.scala#L596) skips an initialization of [the buffer iterator](https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/aggregate/HashAggregateExec.scala#L603); `BaseLimitExec` sets `stopEarly=true` and `$doAgg()` exits in the middle without the initialization.

## How was this patch tested?
Added a test to check if no exception happens for limit + aggregates in `DataFrameAggregateSuite.scala`.

Author: Takeshi YAMAMURO <linguin.m.s@gmail.com>

Closes #15980 from maropu/SPARK-18528.
2016-12-22 01:53:33 +01:00
Tathagata Das 83a6ace0d1 [SPARK-18234][SS] Made update mode public
## What changes were proposed in this pull request?

Made update mode public. As part of that here are the changes.
- Update DatastreamWriter to accept "update"
- Changed package of InternalOutputModes from o.a.s.sql to o.a.s.sql.catalyst
- Added update mode state removing with watermark to StateStoreSaveExec

## How was this patch tested?

Added new tests in changed modules

Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #16360 from tdas/SPARK-18234.
2016-12-21 16:43:17 -08:00
Ryan Williams afd9bc1d8a [SPARK-17807][CORE] split test-tags into test-JAR
Remove spark-tag's compile-scope dependency (and, indirectly, spark-core's compile-scope transitive-dependency) on scalatest by splitting test-oriented tags into spark-tags' test JAR.

Alternative to #16303.

Author: Ryan Williams <ryan.blake.williams@gmail.com>

Closes #16311 from ryan-williams/tt.
2016-12-21 16:37:20 -08:00
Reynold Xin 354e936187 [SPARK-18775][SQL] Limit the max number of records written per file
## What changes were proposed in this pull request?
Currently, Spark writes a single file out per task, sometimes leading to very large files. It would be great to have an option to limit the max number of records written per file in a task, to avoid humongous files.

This patch introduces a new write config option `maxRecordsPerFile` (default to a session-wide setting `spark.sql.files.maxRecordsPerFile`) that limits the max number of records written to a single file. A non-positive value indicates there is no limit (same behavior as not having this flag).

## How was this patch tested?
Added test cases in PartitionedWriteSuite for both dynamic partition insert and non-dynamic partition insert.

Author: Reynold Xin <rxin@databricks.com>

Closes #16204 from rxin/SPARK-18775.
2016-12-21 23:50:35 +01:00
Tathagata Das 607a1e63db [SPARK-18894][SS] Fix event time watermark delay threshold specified in months or years
## What changes were proposed in this pull request?

Two changes
- Fix how delays specified in months and years are translated to milliseconds
- Following up on #16258, not show watermark when there is no watermarking in the query

## How was this patch tested?
Updated and new unit tests

Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #16304 from tdas/SPARK-18834-1.
2016-12-21 10:44:20 -08:00
Wenchen Fan b7650f11c7 [SPARK-18947][SQL] SQLContext.tableNames should not call Catalog.listTables
## What changes were proposed in this pull request?

It's a huge waste to call `Catalog.listTables` in `SQLContext.tableNames`, which only need the table names, while `Catalog.listTables` will get the table metadata for each table name.

## How was this patch tested?

N/A

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16352 from cloud-fan/minor.
2016-12-21 19:39:00 +08:00
gatorsmile 24c0c94128 [SPARK-18949][SQL] Add recoverPartitions API to Catalog
### What changes were proposed in this pull request?

Currently, we only have a SQL interface for recovering all the partitions in the directory of a table and update the catalog. `MSCK REPAIR TABLE` or `ALTER TABLE table RECOVER PARTITIONS`. (Actually, very hard for me to remember `MSCK` and have no clue what it means)

After the new "Scalable Partition Handling", the table repair becomes much more important for making visible the data in the created data source partitioned table.

Thus, this PR is to add it into the Catalog interface. After this PR, users can repair the table by
```Scala
spark.catalog.recoverPartitions("testTable")
```

### How was this patch tested?
Modified the existing test cases.

Author: gatorsmile <gatorsmile@gmail.com>

Closes #16356 from gatorsmile/repairTable.
2016-12-20 23:40:02 -08:00
Burak Yavuz b2dd8ec6b2 [SPARK-18900][FLAKY-TEST] StateStoreSuite.maintenance
## What changes were proposed in this pull request?

It was pretty flaky before 10 days ago.
https://spark-tests.appspot.com/test-details?suite_name=org.apache.spark.sql.execution.streaming.state.StateStoreSuite&test_name=maintenance

Since no code changes went into this code path to not be so flaky, I'm just increasing the timeouts such that load related flakiness shouldn't be a problem. As you may see from the testing, I haven't been able to reproduce it.

## How was this patch tested?

2000 retries 5 times

Author: Burak Yavuz <brkyvz@gmail.com>

Closes #16314 from brkyvz/maint-flaky.
2016-12-20 19:28:18 -08:00
Burak Yavuz caed89321f [SPARK-18927][SS] MemorySink for StructuredStreaming can't recover from checkpoint if location is provided in SessionConf
## What changes were proposed in this pull request?

Checkpoint Location can be defined for a StructuredStreaming on a per-query basis by the `DataStreamWriter` options, but it can also be provided through SparkSession configurations. It should be able to recover in both cases when the OutputMode is Complete for MemorySinks.

## How was this patch tested?

Unit tests

Author: Burak Yavuz <brkyvz@gmail.com>

Closes #16342 from brkyvz/chk-rec.
2016-12-20 14:19:35 -08:00
Reynold Xin 150d26cad4 Tiny style improvement. 2016-12-19 22:50:23 -08:00
Wenchen Fan f923c849e5 [SPARK-18899][SPARK-18912][SPARK-18913][SQL] refactor the error checking when append data to an existing table
## What changes were proposed in this pull request?

When we append data to an existing table with `DataFrameWriter.saveAsTable`, we will do various checks to make sure the appended data is consistent with the existing data.

However, we get the information of the existing table by matching the table relation, instead of looking at the table metadata. This is error-prone, e.g. we only check the number of columns for `HadoopFsRelation`, we forget to check bucketing, etc.

This PR refactors the error checking by looking at the metadata of the existing table, and fix several bugs:
* SPARK-18899: We forget to check if the specified bucketing matched the existing table, which may lead to a problematic table that has different bucketing in different data files.
* SPARK-18912: We forget to check the number of columns for non-file-based data source table
* SPARK-18913: We don't support append data to a table with special column names.

## How was this patch tested?
new regression test.

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16313 from cloud-fan/bug1.
2016-12-19 20:03:33 -08:00
Josh Rosen 5857b9ac2d [SPARK-18928] Check TaskContext.isInterrupted() in FileScanRDD, JDBCRDD & UnsafeSorter
## What changes were proposed in this pull request?

In order to respond to task cancellation, Spark tasks must periodically check `TaskContext.isInterrupted()`, but this check is missing on a few critical read paths used in Spark SQL, including `FileScanRDD`, `JDBCRDD`, and UnsafeSorter-based sorts. This can cause interrupted / cancelled tasks to continue running and become zombies (as also described in #16189).

This patch aims to fix this problem by adding `TaskContext.isInterrupted()` checks to these paths. Note that I could have used `InterruptibleIterator` to simply wrap a bunch of iterators but in some cases this would have an adverse performance penalty or might not be effective due to certain special uses of Iterators in Spark SQL. Instead, I inlined `InterruptibleIterator`-style logic into existing iterator subclasses.

## How was this patch tested?

Tested manually in `spark-shell` with two different reproductions of non-cancellable tasks, one involving scans of huge files and another involving sort-merge joins that spill to disk. Both causes of zombie tasks are fixed by the changes added here.

Author: Josh Rosen <joshrosen@databricks.com>

Closes #16340 from JoshRosen/sql-task-interruption.
2016-12-20 01:19:38 +01:00
Shixiong Zhu 4faa8a3ec0 [SPARK-18904][SS][TESTS] Merge two FileStreamSourceSuite files
## What changes were proposed in this pull request?

Merge two FileStreamSourceSuite files into one file.

## How was this patch tested?

Jenkins

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16315 from zsxwing/FileStreamSourceSuite.
2016-12-16 15:04:11 -08:00
hyukjinkwon ed84cd0684
[MINOR][BUILD] Fix lint-check failures and javadoc8 break
## What changes were proposed in this pull request?

This PR proposes to fix lint-check failures and javadoc8 break.

Few errors were introduced as below:

**lint-check failures**

```
[ERROR] src/test/java/org/apache/spark/network/TransportClientFactorySuite.java:[45,1] (imports) RedundantImport: Duplicate import to line 43 - org.apache.spark.network.util.MapConfigProvider.
[ERROR] src/main/java/org/apache/spark/unsafe/types/CalendarInterval.java:[255,10] (modifier) RedundantModifier: Redundant 'final' modifier.
```

**javadoc8**

```
[error] .../spark/sql/core/target/java/org/apache/spark/sql/streaming/StreamingQueryProgress.java:19: error: bad use of '>'
[error]  *                   "max" -> "2016-12-05T20:54:20.827Z"  // maximum event time seen in this trigger
[error]                             ^
[error] .../spark/sql/core/target/java/org/apache/spark/sql/streaming/StreamingQueryProgress.java:20: error: bad use of '>'
[error]  *                   "min" -> "2016-12-05T20:54:20.827Z"  // minimum event time seen in this trigger
[error]                             ^
[error] .../spark/sql/core/target/java/org/apache/spark/sql/streaming/StreamingQueryProgress.java:21: error: bad use of '>'
[error]  *                   "avg" -> "2016-12-05T20:54:20.827Z"  // average event time seen in this trigger
[error]                             ^
[error] .../spark/sql/core/target/java/org/apache/spark/sql/streaming/StreamingQueryProgress.java:22: error: bad use of '>'
[error]  *                   "watermark" -> "2016-12-05T20:54:20.827Z"  // watermark used in this trigger
[error]
```

## How was this patch tested?

Manually checked as below:

**lint-check failures**

```
./dev/lint-java
Checkstyle checks passed.
```

**javadoc8**

This seems hidden in the API doc but I manually checked after removing access modifier as below:

It looks not rendering properly (scaladoc).

![2016-12-16 3 40 34](https://cloud.githubusercontent.com/assets/6477701/21255175/8df1fe6e-c3ad-11e6-8cda-ce7f76c6677a.png)

After this PR, it renders as below:

- scaladoc
  ![2016-12-16 3 40 23](https://cloud.githubusercontent.com/assets/6477701/21255135/4a11dab6-c3ad-11e6-8ab2-b091c4f45029.png)

- javadoc
  ![2016-12-16 3 41 10](https://cloud.githubusercontent.com/assets/6477701/21255137/4bba1d9c-c3ad-11e6-9b88-62f1f697b56a.png)

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #16307 from HyukjinKwon/lint-javadoc8.
2016-12-16 17:49:43 +00:00
Takeshi YAMAMURO dc2a4d4ad4 [SPARK-18108][SQL] Fix a schema inconsistent bug that makes a parquet reader fail to read data
## What changes were proposed in this pull request?
A vectorized parquet reader fails to read column data if data schema and partition schema overlap with each other and inferred types in the partition schema differ from ones in the data schema. An example code to reproduce this bug is as follows;

```
scala> case class A(a: Long, b: Int)
scala> val as = Seq(A(1, 2))
scala> spark.createDataFrame(as).write.parquet("/data/a=1/")
scala> val df = spark.read.parquet("/data/")
scala> df.printSchema
root
 |-- a: long (nullable = true)
 |-- b: integer (nullable = true)
scala> df.collect
java.lang.NullPointerException
        at org.apache.spark.sql.execution.vectorized.OnHeapColumnVector.getLong(OnHeapColumnVector.java:283)
        at org.apache.spark.sql.execution.vectorized.ColumnarBatch$Row.getLong(ColumnarBatch.java:191)
        at org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.apply(Unknown Source)
        at org.apache.spark.sql.catalyst.expressions.GeneratedClass$SpecificUnsafeProjection.apply(Unknown Source)
        at scala.collection.Iterator$$anon$11.next(Iterator.scala:409)
        at scala.collection.Iterator$$anon$11.next(Iterator.scala:409)
```
The root cause is that a logical layer (`HadoopFsRelation`) and a physical layer (`VectorizedParquetRecordReader`) have a different assumption on partition schema; the logical layer trusts the data schema to infer the type the overlapped partition columns, and, on the other hand, the physical layer trusts partition schema which is inferred from path string. To fix this bug, this pr simply updates `HadoopFsRelation.schema` to respect the partition columns position in data schema and respect the partition columns type in partition schema.

## How was this patch tested?
Add tests in `ParquetPartitionDiscoverySuite`

Author: Takeshi YAMAMURO <linguin.m.s@gmail.com>

Closes #16030 from maropu/SPARK-18108.
2016-12-16 22:44:42 +08:00
Shixiong Zhu d7f3058e17 [SPARK-18850][SS] Make StreamExecution and progress classes serializable
## What changes were proposed in this pull request?

This PR adds StreamingQueryWrapper to make StreamExecution and progress classes serializable because it is too easy for it to get captured with normal usage. If StreamingQueryWrapper gets captured in a closure but no place calls its methods, it should not fail the Spark tasks. However if its methods are called, then this PR will throw a better message.

## How was this patch tested?

`test("StreamingQuery should be Serializable but cannot be used in executors")`
`test("progress classes should be Serializable")`

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16272 from zsxwing/SPARK-18850.
2016-12-16 00:42:39 -08:00
Burak Yavuz 9c7f83b028 [SPARK-18868][FLAKY-TEST] Deflake StreamingQueryListenerSuite: single listener, check trigger...
## What changes were proposed in this pull request?

Use `recentProgress` instead of `lastProgress` and filter out last non-zero value. Also add eventually to the latest assertQuery similar to first `assertQuery`

## How was this patch tested?

Ran test 1000 times

Author: Burak Yavuz <brkyvz@gmail.com>

Closes #16287 from brkyvz/SPARK-18868.
2016-12-15 15:46:03 -08:00
Shixiong Zhu 68a6dc974b [SPARK-18826][SS] Add 'latestFirst' option to FileStreamSource
## What changes were proposed in this pull request?

When starting a stream with a lot of backfill and maxFilesPerTrigger, the user could often want to start with most recent files first. This would let you keep low latency for recent data and slowly backfill historical data.

This PR adds a new option `latestFirst` to control this behavior. When it's true, `FileStreamSource` will sort the files by the modified time from latest to oldest, and take the first `maxFilesPerTrigger` files as a new batch.

## How was this patch tested?

The added test.

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16251 from zsxwing/newest-first.
2016-12-15 13:17:51 -08:00
jiangxingbo 01e14bf303 [SPARK-17910][SQL] Allow users to update the comment of a column
## What changes were proposed in this pull request?

Right now, once a user set the comment of a column with create table command, he/she cannot update the comment. It will be useful to provide a public interface (e.g. SQL) to do that.

This PR implements the following SQL statement:
```
ALTER TABLE table [PARTITION partition_spec]
CHANGE [COLUMN] column_old_name column_new_name column_dataType
[COMMENT column_comment]
[FIRST | AFTER column_name];
```

For further expansion, we could support alter `name`/`dataType`/`index` of a column too.

## How was this patch tested?

Add new test cases in `ExternalCatalogSuite` and `SessionCatalogSuite`.
Add sql file test for `ALTER TABLE CHANGE COLUMN` statement.

Author: jiangxingbo <jiangxb1987@gmail.com>

Closes #15717 from jiangxb1987/change-column.
2016-12-15 10:09:42 -08:00
Wenchen Fan d6f11a12a1 [SPARK-18856][SQL] non-empty partitioned table should not report zero size
## What changes were proposed in this pull request?

In `DataSource`, if the table is not analyzed, we will use 0 as the default value for table size. This is dangerous, we may broadcast a large table and cause OOM. We should use `defaultSizeInBytes` instead.

## How was this patch tested?

new regression test

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16280 from cloud-fan/bug.
2016-12-14 21:03:56 -08:00
Reynold Xin ffdd1fcd1e [SPARK-18854][SQL] numberedTreeString and apply(i) inconsistent for subqueries
## What changes were proposed in this pull request?
This is a bug introduced by subquery handling. numberedTreeString (which uses generateTreeString under the hood) numbers trees including innerChildren (used to print subqueries), but apply (which uses getNodeNumbered) ignores innerChildren. As a result, apply(i) would return the wrong plan node if there are subqueries.

This patch fixes the bug.

## How was this patch tested?
Added a test case in SubquerySuite.scala to test both the depth-first traversal of numbering as well as making sure the two methods are consistent.

Author: Reynold Xin <rxin@databricks.com>

Closes #16277 from rxin/SPARK-18854.
2016-12-14 16:12:14 -08:00
Shixiong Zhu 1ac6567bdb [SPARK-18852][SS] StreamingQuery.lastProgress should be null when recentProgress is empty
## What changes were proposed in this pull request?

Right now `StreamingQuery.lastProgress` throws NoSuchElementException and it's hard to be used in Python since Python user will just see Py4jError.

This PR just makes it return null instead.

## How was this patch tested?

`test("lastProgress should be null when recentProgress is empty")`

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16273 from zsxwing/SPARK-18852.
2016-12-14 13:36:41 -08:00
hyukjinkwon 89ae26dcdb [SPARK-18753][SQL] Keep pushed-down null literal as a filter in Spark-side post-filter for FileFormat datasources
## What changes were proposed in this pull request?

Currently, `FileSourceStrategy` does not handle the case when the pushed-down filter is `Literal(null)` and removes it at the post-filter in Spark-side.

For example, the codes below:

```scala
val df = Seq(Tuple1(Some(true)), Tuple1(None), Tuple1(Some(false))).toDF()
df.filter($"_1" === "true").explain(true)
```

shows it keeps `null` properly.

```
== Parsed Logical Plan ==
'Filter ('_1 = true)
+- LocalRelation [_1#17]

== Analyzed Logical Plan ==
_1: boolean
Filter (cast(_1#17 as double) = cast(true as double))
+- LocalRelation [_1#17]

== Optimized Logical Plan ==
Filter (isnotnull(_1#17) && null)
+- LocalRelation [_1#17]

== Physical Plan ==
*Filter (isnotnull(_1#17) && null)       << Here `null` is there
+- LocalTableScan [_1#17]
```

However, when we read it back from Parquet,

```scala
val path = "/tmp/testfile"
df.write.parquet(path)
spark.read.parquet(path).filter($"_1" === "true").explain(true)
```

`null` is removed at the post-filter.

```
== Parsed Logical Plan ==
'Filter ('_1 = true)
+- Relation[_1#11] parquet

== Analyzed Logical Plan ==
_1: boolean
Filter (cast(_1#11 as double) = cast(true as double))
+- Relation[_1#11] parquet

== Optimized Logical Plan ==
Filter (isnotnull(_1#11) && null)
+- Relation[_1#11] parquet

== Physical Plan ==
*Project [_1#11]
+- *Filter isnotnull(_1#11)       << Here `null` is missing
   +- *FileScan parquet [_1#11] Batched: true, Format: ParquetFormat, Location: InMemoryFileIndex[file:/tmp/testfile], PartitionFilters: [null], PushedFilters: [IsNotNull(_1)], ReadSchema: struct<_1:boolean>
```

This PR fixes it to keep it properly. In more details,

```scala
val partitionKeyFilters =
  ExpressionSet(normalizedFilters.filter(_.references.subsetOf(partitionSet)))
```

This keeps this `null` in `partitionKeyFilters` as `Literal` always don't have `children` and `references` is being empty  which is always the subset of `partitionSet`.

And then in

```scala
val afterScanFilters = filterSet -- partitionKeyFilters
```

`null` is always removed from the post filter. So, if the referenced fields are empty, it should be applied into data columns too.

After this PR, it becomes as below:

```
== Parsed Logical Plan ==
'Filter ('_1 = true)
+- Relation[_1#276] parquet

== Analyzed Logical Plan ==
_1: boolean
Filter (cast(_1#276 as double) = cast(true as double))
+- Relation[_1#276] parquet

== Optimized Logical Plan ==
Filter (isnotnull(_1#276) && null)
+- Relation[_1#276] parquet

== Physical Plan ==
*Project [_1#276]
+- *Filter (isnotnull(_1#276) && null)
   +- *FileScan parquet [_1#276] Batched: true, Format: ParquetFormat, Location: InMemoryFileIndex[file:/private/var/folders/9j/gf_c342d7d150mwrxvkqnc180000gn/T/spark-a5d59bdb-5b..., PartitionFilters: [null], PushedFilters: [IsNotNull(_1)], ReadSchema: struct<_1:boolean>
```

## How was this patch tested?

Unit test in `FileSourceStrategySuite`

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #16184 from HyukjinKwon/SPARK-18753.
2016-12-14 11:29:11 -08:00
hyukjinkwon c6b8eb71a9
[SPARK-18842][TESTS][LAUNCHER] De-duplicate paths in classpaths in commands for local-cluster mode to work around the path length limitation on Windows
## What changes were proposed in this pull request?

Currently, some tests are being failed and hanging on Windows due to this problem. For the reason in SPARK-18718, some tests using `local-cluster` mode were disabled on Windows due to the length limitation by paths given to classpaths.

The limitation seems roughly 32K (see the [blog in MS](https://blogs.msdn.microsoft.com/oldnewthing/20031210-00/?p=41553/) and [another reference](https://support.thoughtworks.com/hc/en-us/articles/213248526-Getting-around-maximum-command-line-length-is-32767-characters-on-Windows)) but in `local-cluster` mode, executors were being launched as processes with the command such as [here](https://gist.github.com/HyukjinKwon/5bc81061c250d4af5a180869b59d42ea) in (only) tests.

This length is roughly 40K due to the classpaths given to `java` command. However, it seems duplicates are almost half of them. So, if we deduplicate the paths, it seems reduced to roughly 20K with the command, [here](https://gist.github.com/HyukjinKwon/dad0c8db897e5e094684a2dc6a417790).

Maybe, we should consider as some more paths are added in the future but it seems better than disabling all the tests for now with minimised changes.

Therefore, this PR proposes to deduplicate the paths in classpaths in case of launching executors as processes in `local-cluster` mode.

## How was this patch tested?

Existing tests in `ShuffleSuite` and `BroadcastJoinSuite` manually via AppVeyor

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #16266 from HyukjinKwon/disable-local-cluster-tests.
2016-12-14 19:24:24 +00:00
Nattavut Sutyanyong cccd64393e [SPARK-18814][SQL] CheckAnalysis rejects TPCDS query 32
## What changes were proposed in this pull request?
Move the checking of GROUP BY column in correlated scalar subquery from CheckAnalysis
to Analysis to fix a regression caused by SPARK-18504.

This problem can be reproduced with a simple script now.

Seq((1,1)).toDF("pk","pv").createOrReplaceTempView("p")
Seq((1,1)).toDF("ck","cv").createOrReplaceTempView("c")
sql("select * from p,c where p.pk=c.ck and c.cv = (select avg(c1.cv) from c c1 where c1.ck = p.pk)").show

The requirements are:
1. We need to reference the same table twice in both the parent and the subquery. Here is the table c.
2. We need to have a correlated predicate but to a different table. Here is from c (as c1) in the subquery to p in the parent.
3. We will then "deduplicate" c1.ck in the subquery to `ck#<n1>#<n2>` at `Project` above `Aggregate` of `avg`. Then when we compare `ck#<n1>#<n2>` and the original group by column `ck#<n1>` by their canonicalized form, which is #<n2> != #<n1>. That's how we trigger the exception added in SPARK-18504.

## How was this patch tested?

SubquerySuite and a simplified version of TPCDS-Q32

Author: Nattavut Sutyanyong <nsy.can@gmail.com>

Closes #16246 from nsyca/18814.
2016-12-14 11:09:31 +01:00
Wenchen Fan 3e307b4959 [SPARK-18566][SQL] remove OverwriteOptions
## What changes were proposed in this pull request?

`OverwriteOptions` was introduced in https://github.com/apache/spark/pull/15705, to carry the information of static partitions. However, after further refactor, this information becomes duplicated and we can remove `OverwriteOptions`.

## How was this patch tested?

N/A

Author: Wenchen Fan <wenchen@databricks.com>

Closes #15995 from cloud-fan/overwrite.
2016-12-14 11:30:34 +08:00
Weiqing Yang ae5b2d3e46 [SPARK-18746][SQL] Add implicit encoder for BigDecimal, timestamp and date
## What changes were proposed in this pull request?
Add implicit encoders for BigDecimal, timestamp and date.

## How was this patch tested?
Add an unit test.  Pass build, unit tests, and some tests below .
Before:
```
scala> spark.createDataset(Seq(new java.math.BigDecimal(10)))
<console>:24: error: Unable to find encoder for type stored in a Dataset.  Primitive types (Int, String, etc) and Product types (case classes) are supported by importing spark.implicits._  Support for serializing other types will be added in future releases.
       spark.createDataset(Seq(new java.math.BigDecimal(10)))
                          ^

scala>
```
After:
```
scala> spark.createDataset(Seq(new java.math.BigDecimal(10)))
res0: org.apache.spark.sql.Dataset[java.math.BigDecimal] = [value: decimal(38,18)]
```

Author: Weiqing Yang <yangweiqing001@gmail.com>

Closes #16176 from weiqingy/SPARK-18746.
2016-12-14 09:48:38 +08:00
Tathagata Das c68fb426d4 [SPARK-18834][SS] Expose event time stats through StreamingQueryProgress
## What changes were proposed in this pull request?

- Changed `StreamingQueryProgress.watermark` to `StreamingQueryProgress.queryTimestamps` which is a `Map[String, String]` containing the following keys: "eventTime.max", "eventTime.min", "eventTime.avg", "processingTime", "watermark". All of them UTC formatted strings.

- Renamed `StreamingQuery.timestamp` to `StreamingQueryProgress.triggerTimestamp` to differentiate from `queryTimestamps`. It has the timestamp of when the trigger was started.

## How was this patch tested?

Updated tests

Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #16258 from tdas/SPARK-18834.
2016-12-13 14:14:25 -08:00
jiangxingbo 5572ccf86b [SPARK-17932][SQL][FOLLOWUP] Change statement SHOW TABLES EXTENDED to SHOW TABLE EXTENDED
## What changes were proposed in this pull request?

Change the statement `SHOW TABLES [EXTENDED] [(IN|FROM) database_name] [[LIKE] 'identifier_with_wildcards'] [PARTITION(partition_spec)]` to the following statements:

- SHOW TABLES [(IN|FROM) database_name] [[LIKE] 'identifier_with_wildcards']
- SHOW TABLE EXTENDED [(IN|FROM) database_name] LIKE 'identifier_with_wildcards' [PARTITION(partition_spec)]

After this change, the statements `SHOW TABLE/SHOW TABLES` have the same syntax with that HIVE has.

## How was this patch tested?
Modified the test sql file `show-tables.sql`;
Modified the test suite `DDLSuite`.

Author: jiangxingbo <jiangxb1987@gmail.com>

Closes #16262 from jiangxb1987/show-table-extended.
2016-12-13 19:04:34 +01:00
Marcelo Vanzin f280ccf449 [SPARK-18835][SQL] Don't expose Guava types in the JavaTypeInference API.
This avoids issues during maven tests because of shading.

Author: Marcelo Vanzin <vanzin@cloudera.com>

Closes #16260 from vanzin/SPARK-18835.
2016-12-13 10:02:19 -08:00
Shixiong Zhu fb3081d3b3 [SPARK-13747][CORE] Fix potential ThreadLocal leaks in RPC when using ForkJoinPool
## What changes were proposed in this pull request?

Some places in SQL may call `RpcEndpointRef.askWithRetry` (e.g., ParquetFileFormat.buildReader -> SparkContext.broadcast -> ... -> BlockManagerMaster.updateBlockInfo -> RpcEndpointRef.askWithRetry), which will finally call `Await.result`. It may cause `java.lang.IllegalArgumentException: spark.sql.execution.id is already set` when running in Scala ForkJoinPool.

This PR includes the following changes to fix this issue:

- Remove `ThreadUtils.awaitResult`
- Rename `ThreadUtils. awaitResultInForkJoinSafely` to `ThreadUtils.awaitResult`
- Replace `Await.result` in RpcTimeout with `ThreadUtils.awaitResult`.

## How was this patch tested?

Jenkins

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16230 from zsxwing/fix-SPARK-13747.
2016-12-13 09:53:22 -08:00
Jacek Laskowski 096f868b74
[MINOR][CORE][SQL] Remove explicit RDD and Partition overrides
## What changes were proposed in this pull request?

I **believe** that I _only_ removed duplicated code (that adds nothing but noise). I'm gonna remove the comment after Jenkins has built the changes with no issues and Spark devs has agreed to include the changes.

Remove explicit `RDD` and `Partition` overrides (that turn out code duplication)

## How was this patch tested?

Local build. Awaiting Jenkins.

…cation)

Author: Jacek Laskowski <jacek@japila.pl>

Closes #16145 from jaceklaskowski/rdd-overrides-removed.
2016-12-13 09:40:16 +00:00
Andrew Ray 46d30ac484 [SPARK-18717][SQL] Make code generation for Scala Map work with immutable.Map also
## What changes were proposed in this pull request?

Fixes compile errors in generated code when user has case class with a `scala.collections.immutable.Map` instead of a `scala.collections.Map`. Since ArrayBasedMapData.toScalaMap returns the immutable version we can make it work with both.

## How was this patch tested?

Additional unit tests.

Author: Andrew Ray <ray.andrew@gmail.com>

Closes #16161 from aray/fix-map-codegen.
2016-12-13 15:49:22 +08:00
Shixiong Zhu 417e45c584 [SPARK-18796][SS] StreamingQueryManager should not block when starting a query
## What changes were proposed in this pull request?

Major change in this PR:
- Add `pendingQueryNames` and `pendingQueryIds` to track that are going to start but not yet put into `activeQueries` so that we don't need to hold a lock when starting a query.

Minor changes:
- Fix a potential NPE when the user sets `checkpointLocation` using SQLConf but doesn't specify a query name.
- Add missing docs in `StreamingQueryListener`

## How was this patch tested?

Jenkins

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16220 from zsxwing/SPARK-18796.
2016-12-12 22:31:22 -08:00
Marcelo Vanzin 476b34c23a [SPARK-18752][HIVE] isSrcLocal" value should be set from user query.
The value of the "isSrcLocal" parameter passed to Hive's loadTable and
loadPartition methods needs to be set according to the user query (e.g.
"LOAD DATA LOCAL"), and not the current code that tries to guess what
it should be.

For existing versions of Hive the current behavior is probably ok, but
some recent changes in the Hive code changed the semantics slightly,
making code that sets "isSrcLocal" to "true" incorrectly to do the
wrong thing. It would end up moving the parent directory of the files
into the final location, instead of the file themselves, resulting
in a table that cannot be read.

I modified HiveCommandSuite so that existing "LOAD DATA" tests are run
both in local and non-local mode, since the semantics are slightly different.
The tests include a few new checks to make sure the semantics follow
what Hive describes in its documentation.

Tested with existing unit tests and also ran some Hive integration tests
with a version of Hive containing the changes that surfaced the problem.

Author: Marcelo Vanzin <vanzin@cloudera.com>

Closes #16179 from vanzin/SPARK-18752.
2016-12-12 14:19:42 -08:00
meknio bf42c2db57 [SPARK-16297][SQL] Fix mapping Microsoft SQLServer dialect
The problem is if it is run with no fix throws an exception and causes the following error:

  "Cannot specify a column width on data type bit."

The problem stems from the fact that the "java.sql.types.BIT" type is mapped as BIT[n] that really must be mapped as BIT.
This concerns the type Boolean.

As for the type String with maximum length of characters it must be mapped as VARCHAR (MAX) instead of TEXT which is a type deprecated in SQLServer.

Here is the list of mappings for SQL Server:
https://msdn.microsoft.com/en-us/library/ms378878(v=sql.110).aspx

Closes #13944 from meknio/master.
2016-12-12 12:54:39 -08:00
Tyson Condie 83a42897ae [SPARK-18790][SS] Keep a general offset history of stream batches
## What changes were proposed in this pull request?

Instead of only keeping the minimum number of offsets around, we should keep enough information to allow us to roll back n batches and reexecute the stream starting from a given point. In particular, we should create a config in SQLConf, spark.sql.streaming.retainedBatches that defaults to 100 and ensure that we keep enough log files in the following places to roll back the specified number of batches:
the offsets that are present in each batch
versions of the state store
the files lists stored for the FileStreamSource
the metadata log stored by the FileStreamSink

marmbrus zsxwing

## How was this patch tested?

The following tests were added.

### StreamExecution offset metadata
Test added to StreamingQuerySuite that ensures offset metadata is garbage collected according to minBatchesRetain

### CompactibleFileStreamLog
Tests added in CompactibleFileStreamLogSuite to ensure that logs are purged starting before the first compaction file that proceeds the current batch id - minBatchesToRetain.

Please review http://spark.apache.org/contributing.html before opening a pull request.

Author: Tyson Condie <tcondie@gmail.com>

Closes #16219 from tcondie/offset_hist.
2016-12-11 23:38:31 -08:00
wangzhenhua a29ee55aaa [SPARK-18815][SQL] Fix NPE when collecting column stats for string/binary column having only null values
## What changes were proposed in this pull request?

During column stats collection, average and max length will be null if a column of string/binary type has only null values. To fix this, I use default size when avg/max length is null.

## How was this patch tested?

Add a test for handling null columns

Author: wangzhenhua <wangzhenhua@huawei.com>

Closes #16243 from wzhfy/nullStats.
2016-12-10 21:25:29 -08:00
hyukjinkwon e094d01156
[SPARK-18803][TESTS] Fix JarEntry-related & path-related test failures and skip some tests by path length limitation on Windows
## What changes were proposed in this pull request?

This PR proposes to fix some tests being failed on Windows as below for several problems.

### Incorrect path handling

- FileSuite
  ```
  [info] - binary file input as byte array *** FAILED *** (500 milliseconds)
  [info]   "file:/C:/projects/spark/target/tmp/spark-e7c3a3b8-0a4b-4a7f-9ebe-7c4883e48624/record-bytestream-00000.bin" did not contain "C:\projects\spark\target\tmp\spark-e7c3a3b8-0a4b-4a7f-9ebe-7c4883e48624\record-bytestream-00000.bin" (FileSuite.scala:258)
  [info]   org.scalatest.exceptions.TestFailedException:
  [info]   at org.scalatest.Assertions$class.newAssertionFailedException(Assertions.scala:500)
  ...
  ```
  ```
  [info] - Get input files via old Hadoop API *** FAILED *** (1 second, 94 milliseconds)
  [info]   Set("/C:/projects/spark/target/tmp/spark-cf5b1f8b-c5ed-43e0-8d17-546ebbfa8200/output/part-00000", "/C:/projects/spark/target/tmp/spark-cf5b1f8b-c5ed-43e0-8d17-546ebbfa8200/output/part-00001") did not equal Set("C:\projects\spark\target\tmp\spark-cf5b1f8b-c5ed-43e0-8d17-546ebbfa8200\output/part-00000", "C:\projects\spark\target\tmp\spark-cf5b1f8b-c5ed-43e0-8d17-546ebbfa8200\output/part-00001") (FileSuite.scala:535)
  [info]   org.scalatest.exceptions.TestFailedException:
  [info]   at org.scalatest.Assertions$class.newAssertionFailedException(Assertions.scala:500)
  ...
  ```

  ```
  [info] - Get input files via new Hadoop API *** FAILED *** (313 milliseconds)
  [info]   Set("/C:/projects/spark/target/tmp/spark-12bc1540-1111-4df6-9c4d-79e0e614407c/output/part-00000", "/C:/projects/spark/target/tmp/spark-12bc1540-1111-4df6-9c4d-79e0e614407c/output/part-00001") did not equal Set("C:\projects\spark\target\tmp\spark-12bc1540-1111-4df6-9c4d-79e0e614407c\output/part-00000", "C:\projects\spark\target\tmp\spark-12bc1540-1111-4df6-9c4d-79e0e614407c\output/part-00001") (FileSuite.scala:549)
  [info]   org.scalatest.exceptions.TestFailedException:
  ...
  ```

- TaskResultGetterSuite

  ```
  [info] - handling results larger than max RPC message size *** FAILED *** (1 second, 579 milliseconds)
  [info]   1 did not equal 0 Expect result to be removed from the block manager. (TaskResultGetterSuite.scala:129)
  [info]   org.scalatest.exceptions.TestFailedException:
  [info]   ...
  [info]   Cause: java.net.URISyntaxException: Illegal character in path at index 12: string:///C:\projects\spark\target\tmp\spark-93c485af-68da-440f-a907-aac7acd5fc25\repro\MyException.java
  [info]   at java.net.URI$Parser.fail(URI.java:2848)
  [info]   at java.net.URI$Parser.checkChars(URI.java:3021)
  ...
  ```
  ```
  [info] - failed task deserialized with the correct classloader (SPARK-11195) *** FAILED *** (0 milliseconds)
  [info]   java.lang.IllegalArgumentException: Illegal character in path at index 12: string:///C:\projects\spark\target\tmp\spark-93c485af-68da-440f-a907-aac7acd5fc25\repro\MyException.java
  [info]   at java.net.URI.create(URI.java:852)
  ...
  ```

- SparkSubmitSuite

  ```
  [info]   java.lang.IllegalArgumentException: Illegal character in path at index 12: string:///C:\projects\spark\target\tmp\1481210831381-0\870903339\MyLib.java
  [info]   at java.net.URI.create(URI.java:852)
  [info]   at org.apache.spark.TestUtils$.org$apache$spark$TestUtils$$createURI(TestUtils.scala:112)
  ...
  ```

### Incorrect separate for JarEntry

After the path fix from above, then `TaskResultGetterSuite` throws another exception as below:

```
[info] - failed task deserialized with the correct classloader (SPARK-11195) *** FAILED *** (907 milliseconds)
[info]   java.lang.ClassNotFoundException: repro.MyException
[info]   at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
...
```

This is because `Paths.get` concatenates the given paths to an OS-specific path (Windows `\` and Linux `/`). However, for `JarEntry` we should comply ZIP specification meaning it should be always `/` according to ZIP specification.

See `4.4.17 file name: (Variable)` in https://pkware.cachefly.net/webdocs/casestudies/APPNOTE.TXT

### Long path problem on Windows

Some tests in `ShuffleSuite` via `ShuffleNettySuite` were skipped due to the same reason with SPARK-18718

## How was this patch tested?

Manually via AppVeyor.

**Before**

- `FileSuite`, `TaskResultGetterSuite`,`SparkSubmitSuite`
  https://ci.appveyor.com/project/spark-test/spark/build/164-tmp-windows-base (please grep each to check each)
- `ShuffleSuite`
  https://ci.appveyor.com/project/spark-test/spark/build/157-tmp-windows-base

**After**

- `FileSuite`
  https://ci.appveyor.com/project/spark-test/spark/build/166-FileSuite
- `TaskResultGetterSuite`
  https://ci.appveyor.com/project/spark-test/spark/build/173-TaskResultGetterSuite
- `SparkSubmitSuite`
  https://ci.appveyor.com/project/spark-test/spark/build/167-SparkSubmitSuite
- `ShuffleSuite`
  https://ci.appveyor.com/project/spark-test/spark/build/176-ShuffleSuite

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #16234 from HyukjinKwon/test-errors-windows.
2016-12-10 19:55:22 +00:00
gatorsmile 422a45cf04 [SPARK-18766][SQL] Push Down Filter Through BatchEvalPython (Python UDF)
### What changes were proposed in this pull request?
Currently, when users use Python UDF in Filter, BatchEvalPython is always generated below FilterExec. However, not all the predicates need to be evaluated after Python UDF execution. Thus, this PR is to push down the determinisitc predicates through `BatchEvalPython`.
```Python
>>> df = spark.createDataFrame([(1, "1"), (2, "2"), (1, "2"), (1, "2")], ["key", "value"])
>>> from pyspark.sql.functions import udf, col
>>> from pyspark.sql.types import BooleanType
>>> my_filter = udf(lambda a: a < 2, BooleanType())
>>> sel = df.select(col("key"), col("value")).filter((my_filter(col("key"))) & (df.value < "2"))
>>> sel.explain(True)
```
Before the fix, the plan looks like
```
== Optimized Logical Plan ==
Filter ((isnotnull(value#1) && <lambda>(key#0L)) && (value#1 < 2))
+- LogicalRDD [key#0L, value#1]

== Physical Plan ==
*Project [key#0L, value#1]
+- *Filter ((isnotnull(value#1) && pythonUDF0#9) && (value#1 < 2))
   +- BatchEvalPython [<lambda>(key#0L)], [key#0L, value#1, pythonUDF0#9]
      +- Scan ExistingRDD[key#0L,value#1]
```

After the fix, the plan looks like
```
== Optimized Logical Plan ==
Filter ((isnotnull(value#1) && <lambda>(key#0L)) && (value#1 < 2))
+- LogicalRDD [key#0L, value#1]

== Physical Plan ==
*Project [key#0L, value#1]
+- *Filter pythonUDF0#9: boolean
   +- BatchEvalPython [<lambda>(key#0L)], [key#0L, value#1, pythonUDF0#9]
      +- *Filter (isnotnull(value#1) && (value#1 < 2))
         +- Scan ExistingRDD[key#0L,value#1]
```

### How was this patch tested?
Added both unit test cases for `BatchEvalPythonExec` and also add an end-to-end test case in Python test suite.

Author: gatorsmile <gatorsmile@gmail.com>

Closes #16193 from gatorsmile/pythonUDFPredicatePushDown.
2016-12-10 08:47:45 -08:00
Huaxin Gao c5172568b5 [SPARK-17460][SQL] Make sure sizeInBytes in Statistics will not overflow
## What changes were proposed in this pull request?

1. In SparkStrategies.canBroadcast, I will add the check   plan.statistics.sizeInBytes >= 0
2. In LocalRelations.statistics, when calculate the statistics, I will change the size to BigInt so it won't overflow.

## How was this patch tested?

I will add a test case to make sure the statistics.sizeInBytes won't overflow.

Author: Huaxin Gao <huaxing@us.ibm.com>

Closes #16175 from huaxingao/spark-17460.
2016-12-10 22:41:40 +08:00
Burak Yavuz 63c9159870 [SPARK-18811] StreamSource resolution should happen in stream execution thread
## What changes were proposed in this pull request?

When you start a stream, if we are trying to resolve the source of the stream, for example if we need to resolve partition columns, this could take a long time. This long execution time should not block the main thread where `query.start()` was called on. It should happen in the stream execution thread possibly before starting any triggers.

## How was this patch tested?

Unit test added. Made sure test fails with no code changes.

Author: Burak Yavuz <brkyvz@gmail.com>

Closes #16238 from brkyvz/SPARK-18811.
2016-12-09 22:49:51 -08:00
Kazuaki Ishizaki d60ab5fd9b [SPARK-18745][SQL] Fix signed integer overflow due to toInt cast
## What changes were proposed in this pull request?

This PR avoids that a result of a cast `toInt` is negative due to signed integer overflow (e.g. 0x0000_0000_1???????L.toInt < 0 ). This PR performs casts after we can ensure the value is within range of signed integer (the result of `max(array.length, ???)` is always integer).

## How was this patch tested?

Manually executed query68 of TPC-DS with 100TB

Author: Kazuaki Ishizaki <ishizaki@jp.ibm.com>

Closes #16235 from kiszk/SPARK-18745.
2016-12-09 23:13:36 +01:00
Xiangrui Meng fd48d80a61 [SPARK-17822][R] Make JVMObjectTracker a member variable of RBackend
## What changes were proposed in this pull request?

* This PR changes `JVMObjectTracker` from `object` to `class` and let its instance associated with each RBackend. So we can manage the lifecycle of JVM objects when there are multiple `RBackend` sessions. `RBackend.close` will clear the object tracker explicitly.
* I assume that `SQLUtils` and `RRunner` do not need to track JVM instances, which could be wrong.
* Small refactor of `SerDe.sqlSerDe` to increase readability.

## How was this patch tested?

* Added unit tests for `JVMObjectTracker`.
* Wait for Jenkins to run full tests.

Author: Xiangrui Meng <meng@databricks.com>

Closes #16154 from mengxr/SPARK-17822.
2016-12-09 07:51:46 -08:00
Tathagata Das 458fa3325e [SPARK-18776][SS] Make Offset for FileStreamSource corrected formatted in json
## What changes were proposed in this pull request?

- Changed FileStreamSource to use new FileStreamSourceOffset rather than LongOffset. The field is named as `logOffset` to make it more clear that this is a offset in the file stream log.
- Fixed bug in FileStreamSourceLog, the field endId in the FileStreamSourceLog.get(startId, endId) was not being used at all. No test caught it earlier. Only my updated tests caught it.

Other minor changes
- Dont use batchId in the FileStreamSource, as calling it batch id is extremely miss leading. With multiple sources, it may happen that a new batch has no new data from a file source. So offset of FileStreamSource != batchId after that batch.

## How was this patch tested?

Updated unit test.

Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #16205 from tdas/SPARK-18776.
2016-12-08 17:53:34 -08:00
Reynold Xin 5f894d23a5 [SPARK-18760][SQL] Consistent format specification for FileFormats
## What changes were proposed in this pull request?
This patch fixes the format specification in explain for file sources (Parquet and Text formats are the only two that are different from the rest):

Before:
```
scala> spark.read.text("test.text").explain()
== Physical Plan ==
*FileScan text [value#15] Batched: false, Format: org.apache.spark.sql.execution.datasources.text.TextFileFormatxyz, Location: InMemoryFileIndex[file:/scratch/rxin/spark/test.text], PartitionFilters: [], PushedFilters: [], ReadSchema: struct<value:string>
```

After:
```
scala> spark.read.text("test.text").explain()
== Physical Plan ==
*FileScan text [value#15] Batched: false, Format: Text, Location: InMemoryFileIndex[file:/scratch/rxin/spark/test.text], PartitionFilters: [], PushedFilters: [], ReadSchema: struct<value:string>
```

Also closes #14680.

## How was this patch tested?
Verified in spark-shell.

Author: Reynold Xin <rxin@databricks.com>

Closes #16187 from rxin/SPARK-18760.
2016-12-08 12:52:05 -08:00
Liang-Chi Hsieh 6a5a7254dc [SPARK-18667][PYSPARK][SQL] Change the way to group row in BatchEvalPythonExec so input_file_name function can work with UDF in pyspark
## What changes were proposed in this pull request?

`input_file_name` doesn't return filename when working with UDF in PySpark. An example shows the problem:

    from pyspark.sql.functions import *
    from pyspark.sql.types import *

    def filename(path):
        return path

    sourceFile = udf(filename, StringType())
    spark.read.json("tmp.json").select(sourceFile(input_file_name())).show()

    +---------------------------+
    |filename(input_file_name())|
    +---------------------------+
    |                           |
    +---------------------------+

The cause of this issue is, we group rows in `BatchEvalPythonExec` for batching processing of PythonUDF. Currently we group rows first and then evaluate expressions on the rows. If the data is less than the required number of rows for a group, the iterator will be consumed to the end before the evaluation. However, once the iterator reaches the end, we will unset input filename. So the input_file_name expression can't return correct filename.

This patch fixes the approach to group the batch of rows. We evaluate the expression first and then group evaluated results to batch.

## How was this patch tested?

Added unit test to PySpark.

Please review http://spark.apache.org/contributing.html before opening a pull request.

Author: Liang-Chi Hsieh <viirya@gmail.com>

Closes #16115 from viirya/fix-py-udf-input-filename.
2016-12-08 23:22:18 +08:00
hyukjinkwon 7f3c778fd0
[SPARK-18718][TESTS] Skip some test failures due to path length limitation and fix tests to pass on Windows
## What changes were proposed in this pull request?

There are some tests failed on Windows due to the wrong format of path and the limitation of path length as below:

This PR proposes both to fix the failed tests by fixing the path for the tests below:

- `InsertSuite`
  ```
  Exception encountered when attempting to run a suite with class name: org.apache.spark.sql.sources.InsertSuite *** ABORTED *** (12 seconds, 547 milliseconds)
      org.apache.spark.sql.AnalysisException: Path does not exist: file:/C:projectsspark	arget	mpspark-177945ef-9128-42b4-8c07-de31f78bbbd6;
      at org.apache.spark.sql.execution.datasources.DataSource$$anonfun$14.apply(DataSource.scala:382)
      at org.apache.spark.sql.execution.datasources.DataSource$$anonfun$14.apply(DataSource.scala:370)
      at scala.collection.TraversableLike$$anonfun$flatMap$1.apply(TraversableLike.scala:241)
  ```

- `PathOptionSuite`
  ```
  - path option also exist for write path *** FAILED *** (1 second, 93 milliseconds)
    "C:[projectsspark	arget	mp]spark-5ab34a58-df8d-..." did not equal "C:[\projects\spark\target\tmp\]spark-5ab34a58-df8d-..." (PathOptionSuite.scala:93)
    org.scalatest.exceptions.TestFailedException:
        at org.scalatest.Assertions$class.newAssertionFailedException(Assertions.scala:500)
        at org.scalatest.FunSuite.newAssertionFailedException(FunSuite.scala:1555)
    ...
  ```

- `UDFSuite`
  ```
  - SPARK-8005 input_file_name *** FAILED *** (2 seconds, 234 milliseconds)
    "file:///C:/projects/spark/target/tmp/spark-e4e5720a-2006-48f9-8b11-797bf59794bf/part-00001-26fb05e4-603d-471d-ae9d-b9549e0c7765.snappy.parquet" did not contain "C:\projects\spark\target\tmp\spark-e4e5720a-2006-48f9-8b11-797bf59794bf" (UDFSuite.scala:67)
    org.scalatest.exceptions.TestFailedException:
      at org.scalatest.Assertions$class.newAssertionFailedException(Assertions.scala:500)
      at org.scalatest.FunSuite.newAssertionFailedException(FunSuite.scala:1555)
    ...
  ```

and to skip the tests belows which are being failed on Windows due to path length limitation.

- `SparkLauncherSuite`
  ```
  Test org.apache.spark.launcher.SparkLauncherSuite.testChildProcLauncher failed: java.lang.AssertionError: expected:<0> but was:<1>, took 0.062 sec
    at org.apache.spark.launcher.SparkLauncherSuite.testChildProcLauncher(SparkLauncherSuite.java:177)
      ...
  ```

  The stderr from the process is `The filename or extension is too long` which is equivalent to the one below.

- `BroadcastJoinSuite`
  ```
  04:09:40.882 ERROR org.apache.spark.deploy.worker.ExecutorRunner: Error running executor
  java.io.IOException: Cannot run program "C:\Progra~1\Java\jdk1.8.0\bin\java" (in directory "C:\projects\spark\work\app-20161205040542-0000\51658"): CreateProcess error=206, The filename or extension is too long
      at java.lang.ProcessBuilder.start(ProcessBuilder.java:1048)
      at org.apache.spark.deploy.worker.ExecutorRunner.org$apache$spark$deploy$worker$ExecutorRunner$$fetchAndRunExecutor(ExecutorRunner.scala:167)
      at org.apache.spark.deploy.worker.ExecutorRunner$$anon$1.run(ExecutorRunner.scala:73)
  Caused by: java.io.IOException: CreateProcess error=206, The filename or extension is too long
      at java.lang.ProcessImpl.create(Native Method)
      at java.lang.ProcessImpl.<init>(ProcessImpl.java:386)
      at java.lang.ProcessImpl.start(ProcessImpl.java:137)
      at java.lang.ProcessBuilder.start(ProcessBuilder.java:1029)
      ... 2 more
  04:09:40.929 ERROR org.apache.spark.deploy.worker.ExecutorRunner: Error running executor

    (appearently infinite same error messages)

  ...
  ```

## How was this patch tested?

Manually tested via AppVeyor.

**Before**

`InsertSuite`: https://ci.appveyor.com/project/spark-test/spark/build/148-InsertSuite-pr
`PathOptionSuite`: https://ci.appveyor.com/project/spark-test/spark/build/139-PathOptionSuite-pr
`UDFSuite`: https://ci.appveyor.com/project/spark-test/spark/build/143-UDFSuite-pr
`SparkLauncherSuite`: https://ci.appveyor.com/project/spark-test/spark/build/141-SparkLauncherSuite-pr
`BroadcastJoinSuite`: https://ci.appveyor.com/project/spark-test/spark/build/145-BroadcastJoinSuite-pr

**After**

`PathOptionSuite`: https://ci.appveyor.com/project/spark-test/spark/build/140-PathOptionSuite-pr
`SparkLauncherSuite`: https://ci.appveyor.com/project/spark-test/spark/build/142-SparkLauncherSuite-pr
`UDFSuite`: https://ci.appveyor.com/project/spark-test/spark/build/144-UDFSuite-pr
`InsertSuite`: https://ci.appveyor.com/project/spark-test/spark/build/147-InsertSuite-pr
`BroadcastJoinSuite`: https://ci.appveyor.com/project/spark-test/spark/build/149-BroadcastJoinSuite-pr

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #16147 from HyukjinKwon/fix-tests.
2016-12-08 23:02:05 +08:00
Shixiong Zhu b47b892e45 [SPARK-18774][CORE][SQL] Ignore non-existing files when ignoreCorruptFiles is enabled
## What changes were proposed in this pull request?

When `ignoreCorruptFiles` is enabled, it's better to also ignore non-existing files.

## How was this patch tested?

Jenkins

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16203 from zsxwing/ignore-file-not-found.
2016-12-07 22:37:04 -08:00
Tathagata Das 9ab725eabb [SPARK-18758][SS] StreamingQueryListener events from a StreamingQuery should be sent only to the listeners in the same session as the query
## What changes were proposed in this pull request?

Listeners added with `sparkSession.streams.addListener(l)` are added to a SparkSession. So events only from queries in the same session as a listener should be posted to the listener. Currently, all the events gets rerouted through the Spark's main listener bus, that is,
- StreamingQuery posts event to StreamingQueryListenerBus. Only the queries associated with the same session as the bus posts events to it.
- StreamingQueryListenerBus posts event to Spark's main LiveListenerBus as a SparkEvent.
- StreamingQueryListenerBus also subscribes to LiveListenerBus events thus getting back the posted event in a different thread.
- The received is posted to the registered listeners.

The problem is that *all StreamingQueryListenerBuses in all sessions* gets the events and posts them to their listeners. This is wrong.

In this PR, I solve it by making StreamingQueryListenerBus track active queries (by their runIds) when a query posts the QueryStarted event to the bus. This allows the rerouted events to be filtered using the tracked queries.

Note that this list needs to be maintained separately
from the `StreamingQueryManager.activeQueries` because a terminated query is cleared from
`StreamingQueryManager.activeQueries` as soon as it is stopped, but the this ListenerBus must
clear a query only after the termination event of that query has been posted lazily, much after the query has been terminated.

Credit goes to zsxwing for coming up with the initial idea.

## How was this patch tested?
Updated test harness code to use the correct session, and added new unit test.

Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #16186 from tdas/SPARK-18758.
2016-12-07 19:23:27 -08:00
Nathan Howell bec0a9217b [SPARK-18654][SQL] Remove unreachable patterns in makeRootConverter
## What changes were proposed in this pull request?

`makeRootConverter` is only called with a `StructType` value. By making this method less general we can remove pattern matches, which are never actually hit outside of the test suite.

## How was this patch tested?

The existing tests.

Author: Nathan Howell <nhowell@godaddy.com>

Closes #16084 from NathanHowell/SPARK-18654.
2016-12-07 16:52:05 -08:00
Michael Armbrust 70b2bf717d [SPARK-18754][SS] Rename recentProgresses to recentProgress
Based on an informal survey, users find this option easier to understand / remember.

Author: Michael Armbrust <michael@databricks.com>

Closes #16182 from marmbrus/renameRecentProgress.
2016-12-07 15:36:29 -08:00
Shixiong Zhu edc87e1892 [SPARK-18588][TESTS] Fix flaky test: KafkaSourceStressForDontFailOnDataLossSuite
## What changes were proposed in this pull request?

Fixed the following failures:

```
org.scalatest.exceptions.TestFailedDueToTimeoutException: The code passed to eventually never returned normally. Attempted 3745 times over 1.0000790851666665 minutes. Last failure message: assertion failed: failOnDataLoss-0 not deleted after timeout.
```

```
sbt.ForkMain$ForkError: org.apache.spark.sql.streaming.StreamingQueryException: Query query-66 terminated with exception: null
	at org.apache.spark.sql.execution.streaming.StreamExecution.org$apache$spark$sql$execution$streaming$StreamExecution$$runBatches(StreamExecution.scala:252)
	at org.apache.spark.sql.execution.streaming.StreamExecution$$anon$1.run(StreamExecution.scala:146)
Caused by: sbt.ForkMain$ForkError: java.lang.NullPointerException: null
	at java.util.ArrayList.addAll(ArrayList.java:577)
	at org.apache.kafka.clients.Metadata.getClusterForCurrentTopics(Metadata.java:257)
	at org.apache.kafka.clients.Metadata.update(Metadata.java:177)
	at org.apache.kafka.clients.NetworkClient$DefaultMetadataUpdater.handleResponse(NetworkClient.java:605)
	at org.apache.kafka.clients.NetworkClient$DefaultMetadataUpdater.maybeHandleCompletedReceive(NetworkClient.java:582)
	at org.apache.kafka.clients.NetworkClient.handleCompletedReceives(NetworkClient.java:450)
	at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:269)
	at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.clientPoll(ConsumerNetworkClient.java:360)
	at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:224)
	at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:192)
	at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.awaitPendingRequests(ConsumerNetworkClient.java:260)
	at org.apache.kafka.clients.consumer.internals.AbstractCoordinator.ensureActiveGroup(AbstractCoordinator.java:222)
	at org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.ensurePartitionAssignment(ConsumerCoordinator.java:366)
	at org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:978)
	at org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:938)
	at
...
```

## How was this patch tested?

Tested in #16048 by running many times.

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16109 from zsxwing/fix-kafka-flaky-test.
2016-12-07 13:47:44 -08:00
Shixiong Zhu dbf3e298a1 [SPARK-18764][CORE] Add a warning log when skipping a corrupted file
## What changes were proposed in this pull request?

It's better to add a warning log when skipping a corrupted file. It will be helpful when we want to finish the job first, then find them in the log and fix these files.

## How was this patch tested?

Jenkins

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16192 from zsxwing/SPARK-18764.
2016-12-07 10:30:05 -08:00
Andrew Ray f1fca81b16 [SPARK-17760][SQL] AnalysisException with dataframe pivot when groupBy column is not attribute
## What changes were proposed in this pull request?

Fixes AnalysisException for pivot queries that have group by columns that are expressions and not attributes by substituting the expressions output attribute in the second aggregation and final projection.

## How was this patch tested?

existing and additional unit tests

Author: Andrew Ray <ray.andrew@gmail.com>

Closes #16177 from aray/SPARK-17760.
2016-12-07 04:44:14 -08:00
Tathagata Das 5c6bcdbda4 [SPARK-18671][SS][TEST-MAVEN] Follow up PR to fix test for Maven
## What changes were proposed in this pull request?

Maven compilation seem to not allow resource is sql/test to be easily referred to in kafka-0-10-sql tests. So moved the kafka-source-offset-version-2.1.0 from sql test resources to kafka-0-10-sql test resources.

## How was this patch tested?

Manually ran maven test

Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #16183 from tdas/SPARK-18671-1.
2016-12-06 21:51:38 -08:00
Tathagata Das 539bb3cf95 [SPARK-18734][SS] Represent timestamp in StreamingQueryProgress as formatted string instead of millis
## What changes were proposed in this pull request?

Easier to read while debugging as a formatted string (in ISO8601 format) than in millis

## How was this patch tested?
Updated unit tests

Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #16166 from tdas/SPARK-18734.
2016-12-06 17:04:26 -08:00
Tathagata Das 1ef6b296d7 [SPARK-18671][SS][TEST] Added tests to ensure stability of that all Structured Streaming log formats
## What changes were proposed in this pull request?

To be able to restart StreamingQueries across Spark version, we have already made the logs (offset log, file source log, file sink log) use json. We should added tests with actual json files in the Spark such that any incompatible changes in reading the logs is immediately caught. This PR add tests for FileStreamSourceLog, FileStreamSinkLog, and OffsetSeqLog.

## How was this patch tested?
new unit tests

Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #16128 from tdas/SPARK-18671.
2016-12-06 13:05:22 -08:00
Reynold Xin cb1f10b468 [SPARK-18714][SQL] Add a simple time function to SparkSession
## What changes were proposed in this pull request?
Many Spark developers often want to test the runtime of some function in interactive debugging and testing. This patch adds a simple time function to SparkSession:

```
scala> spark.time { spark.range(1000).count() }
Time taken: 77 ms
res1: Long = 1000
```

## How was this patch tested?
I tested this interactively in spark-shell.

Author: Reynold Xin <rxin@databricks.com>

Closes #16140 from rxin/SPARK-18714.
2016-12-06 11:48:11 -08:00
Shixiong Zhu 7863c62379 [SPARK-18721][SS] Fix ForeachSink with watermark + append
## What changes were proposed in this pull request?

Right now ForeachSink creates a new physical plan, so StreamExecution cannot retrieval metrics and watermark.

This PR changes ForeachSink to manually convert InternalRows to objects without creating a new plan.

## How was this patch tested?

`test("foreach with watermark: append")`.

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16160 from zsxwing/SPARK-18721.
2016-12-05 20:35:24 -08:00
Michael Allman 772ddbeaa6 [SPARK-18572][SQL] Add a method listPartitionNames to ExternalCatalog
(Link to Jira issue: https://issues.apache.org/jira/browse/SPARK-18572)

## What changes were proposed in this pull request?

Currently Spark answers the `SHOW PARTITIONS` command by fetching all of the table's partition metadata from the external catalog and constructing partition names therefrom. The Hive client has a `getPartitionNames` method which is many times faster for this purpose, with the performance improvement scaling with the number of partitions in a table.

To test the performance impact of this PR, I ran the `SHOW PARTITIONS` command on two Hive tables with large numbers of partitions. One table has ~17,800 partitions, and the other has ~95,000 partitions. For the purposes of this PR, I'll call the former table `table1` and the latter table `table2`. I ran 5 trials for each table with before-and-after versions of this PR. The results are as follows:

Spark at bdc8153, `SHOW PARTITIONS table1`, times in seconds:
7.901
3.983
4.018
4.331
4.261

Spark at bdc8153, `SHOW PARTITIONS table2`
(Timed out after 10 minutes with a `SocketTimeoutException`.)

Spark at this PR, `SHOW PARTITIONS table1`, times in seconds:
3.801
0.449
0.395
0.348
0.336

Spark at this PR, `SHOW PARTITIONS table2`, times in seconds:
5.184
1.63
1.474
1.519
1.41

Taking the best times from each trial, we get a 12x performance improvement for a table with ~17,800 partitions and at least a 426x improvement for a table with ~95,000 partitions. More significantly, the latter command doesn't even complete with the current code in master.

This is actually a patch we've been using in-house at VideoAmp since Spark 1.1. It's made all the difference in the practical usability of our largest tables. Even with tables with about 1,000 partitions there's a performance improvement of about 2-3x.

## How was this patch tested?

I added a unit test to `VersionsSuite` which tests that the Hive client's `getPartitionNames` method returns the correct number of partitions.

Author: Michael Allman <michael@videoamp.com>

Closes #15998 from mallman/spark-18572-list_partition_names.
2016-12-06 11:33:35 +08:00
Shixiong Zhu 4af142f557 [SPARK-18722][SS] Move no data rate limit from StreamExecution to ProgressReporter
## What changes were proposed in this pull request?

Move no data rate limit from StreamExecution to ProgressReporter to make `recentProgresses` and listener events consistent.

## How was this patch tested?

Jenkins

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16155 from zsxwing/SPARK-18722.
2016-12-05 18:51:07 -08:00
root 508de38c99 [SPARK-18555][SQL] DataFrameNaFunctions.fill miss up original values in long integers
## What changes were proposed in this pull request?

   DataSet.na.fill(0) used on a DataSet which has a long value column, it will change the original long value.

   The reason is that the type of the function fill's param is Double, and the numeric columns are always cast to double(`fillCol[Double](f, value)`) .
```
  def fill(value: Double, cols: Seq[String]): DataFrame = {
    val columnEquals = df.sparkSession.sessionState.analyzer.resolver
    val projections = df.schema.fields.map { f =>
      // Only fill if the column is part of the cols list.
      if (f.dataType.isInstanceOf[NumericType] && cols.exists(col => columnEquals(f.name, col))) {
        fillCol[Double](f, value)
      } else {
        df.col(f.name)
      }
    }
    df.select(projections : _*)
  }
```

 For example:
```
scala> val df = Seq[(Long, Long)]((1, 2), (-1, -2), (9123146099426677101L, 9123146560113991650L)).toDF("a", "b")
df: org.apache.spark.sql.DataFrame = [a: bigint, b: bigint]

scala> df.show
+-------------------+-------------------+
|                  a|                  b|
+-------------------+-------------------+
|                  1|                  2|
|                 -1|                 -2|
|9123146099426677101|9123146560113991650|
+-------------------+-------------------+

scala> df.na.fill(0).show
+-------------------+-------------------+
|                  a|                  b|
+-------------------+-------------------+
|                  1|                  2|
|                 -1|                 -2|
|9123146099426676736|9123146560113991680|
+-------------------+-------------------+
 ```

the original values changed [which is not we expected result]:
```
 9123146099426677101 -> 9123146099426676736
 9123146560113991650 -> 9123146560113991680
```

## How was this patch tested?

unit test added.

Author: root <root@iZbp1gsnrlfzjxh82cz80vZ.(none)>

Closes #15994 from windpiger/nafillMissupOriginalValue.
2016-12-05 18:39:56 -08:00
gatorsmile 2398fde450 [SPARK-18720][SQL][MINOR] Code Refactoring of withColumn
### What changes were proposed in this pull request?
Our existing withColumn for adding metadata can simply use the existing public withColumn API.

### How was this patch tested?
The existing test cases cover it.

Author: gatorsmile <gatorsmile@gmail.com>

Closes #16152 from gatorsmile/withColumnRefactoring.
2016-12-06 10:23:42 +08:00
Tathagata Das bb57bfe97d [SPARK-18657][SPARK-18668] Make StreamingQuery.id persists across restart and not auto-generate StreamingQuery.name
## What changes were proposed in this pull request?
Here are the major changes in this PR.
- Added the ability to recover `StreamingQuery.id` from checkpoint location, by writing the id to `checkpointLoc/metadata`.
- Added `StreamingQuery.runId` which is unique for every query started and does not persist across restarts. This is to identify each restart of a query separately (same as earlier behavior of `id`).
- Removed auto-generation of `StreamingQuery.name`. The purpose of name was to have the ability to define an identifier across restarts, but since id is precisely that, there is no need for a auto-generated name. This means name becomes purely cosmetic, and is null by default.
- Added `runId` to `StreamingQueryListener` events and `StreamingQueryProgress`.

Implementation details
- Renamed existing `StreamExecutionMetadata` to `OffsetSeqMetadata`, and moved it to the file `OffsetSeq.scala`, because that is what this metadata is tied to. Also did some refactoring to make the code cleaner (got rid of a lot of `.json` and `.getOrElse("{}")`).
- Added the `id` as the new `StreamMetadata`.
- When a StreamingQuery is created it gets or writes the `StreamMetadata` from `checkpointLoc/metadata`.
- All internal logging in `StreamExecution` uses `(name, id, runId)` instead of just `name`

TODO
- [x] Test handling of name=null in json generation of StreamingQueryProgress
- [x] Test handling of name=null in json generation of StreamingQueryListener events
- [x] Test python API of runId

## How was this patch tested?
Updated unit tests and new unit tests

Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #16113 from tdas/SPARK-18657.
2016-12-05 18:17:38 -08:00
Shixiong Zhu 1b2785c3d0 [SPARK-18729][SS] Move DataFrame.collect out of synchronized block in MemorySink
## What changes were proposed in this pull request?

Move DataFrame.collect out of synchronized block so that we can query content in MemorySink when `DataFrame.collect` is running.

## How was this patch tested?

Jenkins

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16162 from zsxwing/SPARK-18729.
2016-12-05 18:15:55 -08:00
Liang-Chi Hsieh 3ba69b6485 [SPARK-18634][PYSPARK][SQL] Corruption and Correctness issues with exploding Python UDFs
## What changes were proposed in this pull request?

As reported in the Jira, there are some weird issues with exploding Python UDFs in SparkSQL.

The following test code can reproduce it. Notice: the following test code is reported to return wrong results in the Jira. However, as I tested on master branch, it causes exception and so can't return any result.

    >>> from pyspark.sql.functions import *
    >>> from pyspark.sql.types import *
    >>>
    >>> df = spark.range(10)
    >>>
    >>> def return_range(value):
    ...   return [(i, str(i)) for i in range(value - 1, value + 1)]
    ...
    >>> range_udf = udf(return_range, ArrayType(StructType([StructField("integer_val", IntegerType()),
    ...                                                     StructField("string_val", StringType())])))
    >>>
    >>> df.select("id", explode(range_udf(df.id))).show()
    Traceback (most recent call last):
      File "<stdin>", line 1, in <module>
      File "/spark/python/pyspark/sql/dataframe.py", line 318, in show
        print(self._jdf.showString(n, 20))
      File "/spark/python/lib/py4j-0.10.4-src.zip/py4j/java_gateway.py", line 1133, in __call__
      File "/spark/python/pyspark/sql/utils.py", line 63, in deco
        return f(*a, **kw)
      File "/spark/python/lib/py4j-0.10.4-src.zip/py4j/protocol.py", line 319, in get_return_value py4j.protocol.Py4JJavaError: An error occurred while calling o126.showString.: java.lang.AssertionError: assertion failed
        at scala.Predef$.assert(Predef.scala:156)
        at org.apache.spark.sql.execution.CodegenSupport$class.consume(WholeStageCodegenExec.scala:120)
        at org.apache.spark.sql.execution.GenerateExec.consume(GenerateExec.scala:57)

The cause of this issue is, in `ExtractPythonUDFs` we insert `BatchEvalPythonExec` to run PythonUDFs in batch. `BatchEvalPythonExec` will add extra outputs (e.g., `pythonUDF0`) to original plan. In above case, the original `Range` only has one output `id`. After `ExtractPythonUDFs`, the added `BatchEvalPythonExec` has two outputs `id` and `pythonUDF0`.

Because the output of `GenerateExec` is given after analysis phase, in above case, it is the combination of `id`, i.e., the output of `Range`, and `col`. But in planning phase, we change `GenerateExec`'s child plan to `BatchEvalPythonExec` with additional output attributes.

It will cause no problem in non wholestage codegen. Because when evaluating the additional attributes are projected out the final output of `GenerateExec`.

However, as `GenerateExec` now supports wholestage codegen, the framework will input all the outputs of the child plan to `GenerateExec`. Then when consuming `GenerateExec`'s output data (i.e., calling `consume`), the number of output attributes is different to the output variables in wholestage codegen.

To solve this issue, this patch only gives the generator's output to `GenerateExec` after analysis phase. `GenerateExec`'s output is the combination of its child plan's output and the generator's output. So when we change `GenerateExec`'s child, its output is still correct.

## How was this patch tested?

Added test cases to PySpark.

Please review http://spark.apache.org/contributing.html before opening a pull request.

Author: Liang-Chi Hsieh <viirya@gmail.com>

Closes #16120 from viirya/fix-py-udf-with-generator.
2016-12-05 17:50:43 -08:00
Wenchen Fan 01a7d33d08 [SPARK-18711][SQL] should disable subexpression elimination for LambdaVariable
## What changes were proposed in this pull request?

This is kind of a long-standing bug, it's hidden until https://github.com/apache/spark/pull/15780 , which may add `AssertNotNull` on top of `LambdaVariable` and thus enables subexpression elimination.

However, subexpression elimination will evaluate the common expressions at the beginning, which is invalid for `LambdaVariable`. `LambdaVariable` usually represents loop variable, which can't be evaluated ahead of the loop.

This PR skips expressions containing `LambdaVariable` when doing subexpression elimination.

## How was this patch tested?

updated test in `DatasetAggregatorSuite`

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16143 from cloud-fan/aggregator.
2016-12-05 11:37:13 -08:00
Shixiong Zhu 246012859f [SPARK-18694][SS] Add StreamingQuery.explain and exception to Python and fix StreamingQueryException
## What changes were proposed in this pull request?

- Add StreamingQuery.explain and exception to Python.
- Fix StreamingQueryException to not expose `OffsetSeq`.

## How was this patch tested?

Jenkins

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16125 from zsxwing/py-streaming-explain.
2016-12-05 11:36:11 -08:00
Reynold Xin e9730b707d [SPARK-18702][SQL] input_file_block_start and input_file_block_length
## What changes were proposed in this pull request?
We currently have function input_file_name to get the path of the input file, but don't have functions to get the block start offset and length. This patch introduces two functions:

1. input_file_block_start: returns the file block start offset, or -1 if not available.

2. input_file_block_length: returns the file block length, or -1 if not available.

## How was this patch tested?
Updated existing test cases in ColumnExpressionSuite that covered input_file_name to also cover the two new functions.

Author: Reynold Xin <rxin@databricks.com>

Closes #16133 from rxin/SPARK-18702.
2016-12-04 21:51:10 -08:00
Eric Liang d9eb4c7215 [SPARK-18661][SQL] Creating a partitioned datasource table should not scan all files for table
## What changes were proposed in this pull request?

Even though in 2.1 creating a partitioned datasource table will not populate the partition data by default (until the user issues MSCK REPAIR TABLE), it seems we still scan the filesystem for no good reason.

We should avoid doing this when the user specifies a schema.

## How was this patch tested?

Perf stat tests.

Author: Eric Liang <ekl@databricks.com>

Closes #16090 from ericl/spark-18661.
2016-12-04 20:44:04 +08:00
Nattavut Sutyanyong 4a3c09601b [SPARK-18582][SQL] Whitelist LogicalPlan operators allowed in correlated subqueries
## What changes were proposed in this pull request?

This fix puts an explicit list of operators that Spark supports for correlated subqueries.

## How was this patch tested?

Run sql/test, catalyst/test and add a new test case on Generate.

Author: Nattavut Sutyanyong <nsy.can@gmail.com>

Closes #16046 from nsyca/spark18455.0.
2016-12-03 11:36:26 -08:00
Josh Rosen 7c33b0fd05 [SPARK-18362][SQL] Use TextFileFormat in implementation of CSVFileFormat
## What changes were proposed in this pull request?

This patch significantly improves the IO / file listing performance of schema inference in Spark's built-in CSV data source.

Previously, this data source used the legacy `SparkContext.hadoopFile` and `SparkContext.hadoopRDD` methods to read files during its schema inference step, causing huge file-listing bottlenecks on the driver.

This patch refactors this logic to use Spark SQL's `text` data source to read files during this step. The text data source still performs some unnecessary file listing (since in theory we already have resolved the table prior to schema inference and therefore should be able to scan without performing _any_ extra listing), but that listing is much faster and takes place in parallel. In one production workload operating over tens of thousands of files, this change managed to reduce schema inference time from 7 minutes to 2 minutes.

A similar problem also affects the JSON file format and this patch originally fixed that as well, but I've decided to split that change into a separate patch so as not to conflict with changes in another JSON PR.

## How was this patch tested?

Existing unit tests, plus manual benchmarking on a production workload.

Author: Josh Rosen <joshrosen@databricks.com>

Closes #15813 from JoshRosen/use-text-data-source-in-csv-and-json.
2016-12-02 21:14:34 -08:00
Reynold Xin c7c7265950 [SPARK-18695] Bump master branch version to 2.2.0-SNAPSHOT
## What changes were proposed in this pull request?
This patch bumps master branch version to 2.2.0-SNAPSHOT.

## How was this patch tested?
N/A

Author: Reynold Xin <rxin@databricks.com>

Closes #16126 from rxin/SPARK-18695.
2016-12-02 21:09:37 -08:00
Shixiong Zhu 56a503df5c [SPARK-18670][SS] Limit the number of StreamingQueryListener.StreamProgressEvent when there is no data
## What changes were proposed in this pull request?

This PR adds a sql conf `spark.sql.streaming.noDataReportInterval` to control how long to wait before outputing the next StreamProgressEvent when there is no data.

## How was this patch tested?

The added unit test.

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16108 from zsxwing/SPARK-18670.
2016-12-02 12:42:47 -08:00
Eric Liang 7935c8470c [SPARK-18659][SQL] Incorrect behaviors in overwrite table for datasource tables
## What changes were proposed in this pull request?

Two bugs are addressed here
1. INSERT OVERWRITE TABLE sometime crashed when catalog partition management was enabled. This was because when dropping partitions after an overwrite operation, the Hive client will attempt to delete the partition files. If the entire partition directory was dropped, this would fail. The PR fixes this by adding a flag to control whether the Hive client should attempt to delete files.
2. The static partition spec for OVERWRITE TABLE was not correctly resolved to the case-sensitive original partition names. This resulted in the entire table being overwritten if you did not correctly capitalize your partition names.

cc yhuai cloud-fan

## How was this patch tested?

Unit tests. Surprisingly, the existing overwrite table tests did not catch these edge cases.

Author: Eric Liang <ekl@databricks.com>

Closes #16088 from ericl/spark-18659.
2016-12-02 21:59:02 +08:00
Dongjoon Hyun 55d528f2ba [SPARK-18419][SQL] JDBCRelation.insert should not remove Spark options
## What changes were proposed in this pull request?

Currently, `JDBCRelation.insert` removes Spark options too early by mistakenly using `asConnectionProperties`. Spark options like `numPartitions` should be passed into `DataFrameWriter.jdbc` correctly. This bug have been **hidden** because `JDBCOptions.asConnectionProperties` fails to filter out the mixed-case options. This PR aims to fix both.

**JDBCRelation.insert**
```scala
override def insert(data: DataFrame, overwrite: Boolean): Unit = {
  val url = jdbcOptions.url
  val table = jdbcOptions.table
- val properties = jdbcOptions.asConnectionProperties
+ val properties = jdbcOptions.asProperties
  data.write
    .mode(if (overwrite) SaveMode.Overwrite else SaveMode.Append)
    .jdbc(url, table, properties)
```

**JDBCOptions.asConnectionProperties**
```scala
scala> import org.apache.spark.sql.execution.datasources.jdbc.JDBCOptions
scala> import org.apache.spark.sql.catalyst.util.CaseInsensitiveMap
scala> new JDBCOptions(Map("url" -> "jdbc:mysql://localhost:3306/temp", "dbtable" -> "t1", "numPartitions" -> "10")).asConnectionProperties
res0: java.util.Properties = {numpartitions=10}
scala> new JDBCOptions(new CaseInsensitiveMap(Map("url" -> "jdbc:mysql://localhost:3306/temp", "dbtable" -> "t1", "numPartitions" -> "10"))).asConnectionProperties
res1: java.util.Properties = {numpartitions=10}
```

## How was this patch tested?

Pass the Jenkins with a new testcase.

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #15863 from dongjoon-hyun/SPARK-18419.
2016-12-02 21:48:22 +08:00
Eric Liang 294163ee93 [SPARK-18679][SQL] Fix regression in file listing performance for non-catalog tables
## What changes were proposed in this pull request?

In Spark 2.1 ListingFileCatalog was significantly refactored (and renamed to InMemoryFileIndex). This introduced a regression where parallelism could only be introduced at the very top of the tree. However, in many cases (e.g. `spark.read.parquet(topLevelDir)`), the top of the tree is only a single directory.

This PR simplifies and fixes the parallel recursive listing code to allow parallelism to be introduced at any level during recursive descent (though note that once we decide to list a sub-tree in parallel, the sub-tree is listed in serial on executors).

cc mallman  cloud-fan

## How was this patch tested?

Checked metrics in unit tests.

Author: Eric Liang <ekl@databricks.com>

Closes #16112 from ericl/spark-18679.
2016-12-02 20:59:39 +08:00
Weiqing Yang 2159bf8b2c
[SPARK-18629][SQL] Fix numPartition of JDBCSuite Testcase
## What changes were proposed in this pull request?
Fix numPartition of JDBCSuite Testcase.

## How was this patch tested?
Before:
Run any one of the test cases in JDBCSuite, you will get the following warning.
```
10:34:26.389 WARN org.apache.spark.sql.execution.datasources.jdbc.JDBCRelation: The number of partitions is reduced because the specified number of partitions is less than the difference between upper bound and lower bound. Updated number of partitions: 3; Input number of partitions: 4; Lower bound: 1; Upper bound: 4.
```
After: Pass tests without the warning.

Author: Weiqing Yang <yangweiqing001@gmail.com>

Closes #16062 from weiqingy/SPARK-18629.
2016-12-02 11:53:15 +00:00
Cheng Lian ca63916372 [SPARK-17213][SQL] Disable Parquet filter push-down for string and binary columns due to PARQUET-686
This PR targets to both master and branch-2.1.

## What changes were proposed in this pull request?

Due to PARQUET-686, Parquet doesn't do string comparison correctly while doing filter push-down for string columns. This PR disables filter push-down for both string and binary columns to work around this issue. Binary columns are also affected because some Parquet data models (like Hive) may store string columns as a plain Parquet `binary` instead of a `binary (UTF8)`.

## How was this patch tested?

New test case added in `ParquetFilterSuite`.

Author: Cheng Lian <lian@databricks.com>

Closes #16106 from liancheng/spark-17213-bad-string-ppd.
2016-12-01 22:02:45 -08:00
Nathan Howell c82f16c15e [SPARK-18658][SQL] Write text records directly to a FileOutputStream
## What changes were proposed in this pull request?

This replaces uses of `TextOutputFormat` with an `OutputStream`, which will either write directly to the filesystem or indirectly via a compressor (if so configured). This avoids intermediate buffering.

The inverse of this (reading directly from a stream) is necessary for streaming large JSON records (when `wholeFile` is enabled) so I wanted to keep the read and write paths symmetric.

## How was this patch tested?

Existing unit tests.

Author: Nathan Howell <nhowell@godaddy.com>

Closes #16089 from NathanHowell/SPARK-18658.
2016-12-01 21:40:49 -08:00
Reynold Xin d3c90b74ed [SPARK-18663][SQL] Simplify CountMinSketch aggregate implementation
## What changes were proposed in this pull request?
SPARK-18429 introduced count-min sketch aggregate function for SQL, but the implementation and testing is more complicated than needed. This simplifies the test cases and removes support for data types that don't have clear equality semantics:

1. Removed support for floating point and decimal types.

2. Removed the heavy randomized tests. The underlying CountMinSketch implementation already had pretty good test coverage through randomized tests, and the SPARK-18429 implementation is just to add an aggregate function wrapper around CountMinSketch. There is no need for randomized tests at three different levels of the implementations.

## How was this patch tested?
A lot of the change is to simplify test cases.

Author: Reynold Xin <rxin@databricks.com>

Closes #16093 from rxin/SPARK-18663.
2016-12-01 21:38:52 -08:00
Kazuaki Ishizaki 38b9e69623 [SPARK-18284][SQL] Make ExpressionEncoder.serializer.nullable precise
## What changes were proposed in this pull request?

This PR makes `ExpressionEncoder.serializer.nullable` for flat encoder for a primitive type `false`. Since it is `true` for now, it is too conservative.
While `ExpressionEncoder.schema` has correct information (e.g. `<IntegerType, false>`), `serializer.head.nullable` of `ExpressionEncoder`, which got from `encoderFor[T]`, is always false. It is too conservative.

This is accomplished by checking whether a type is one of primitive types. If it is `true`, `nullable` should be `false`.

## How was this patch tested?

Added new tests for encoder and dataframe

Author: Kazuaki Ishizaki <ishizaki@jp.ibm.com>

Closes #15780 from kiszk/SPARK-18284.
2016-12-02 12:30:13 +08:00
sureshthalamati 70c5549ee9 [SPARK-18141][SQL] Fix to quote column names in the predicate clause of the JDBC RDD generated sql statement
## What changes were proposed in this pull request?

SQL query generated for the JDBC data source is not quoting columns in the predicate clause. When the source table has quoted column names,  spark jdbc read fails with column not found error incorrectly.

Error:
org.h2.jdbc.JdbcSQLException: Column "ID" not found;
Source SQL statement:
SELECT "Name","Id" FROM TEST."mixedCaseCols" WHERE (Id < 1)

This PR fixes by quoting column names in the generated  SQL for predicate clause  when filters are pushed down to the data source.

Source SQL statement after the fix:
SELECT "Name","Id" FROM TEST."mixedCaseCols" WHERE ("Id" < 1)

## How was this patch tested?

Added new test case to the JdbcSuite

Author: sureshthalamati <suresh.thalamati@gmail.com>

Closes #15662 from sureshthalamati/filter_quoted_cols-SPARK-18141.
2016-12-01 19:13:38 -08:00
Wenchen Fan e653484710 [SPARK-18674][SQL] improve the error message of using join
## What changes were proposed in this pull request?

The current error message of USING join is quite confusing, for example:
```
scala> val df1 = List(1,2,3).toDS.withColumnRenamed("value", "c1")
df1: org.apache.spark.sql.DataFrame = [c1: int]

scala> val df2 = List(1,2,3).toDS.withColumnRenamed("value", "c2")
df2: org.apache.spark.sql.DataFrame = [c2: int]

scala> df1.join(df2, usingColumn = "c1")
org.apache.spark.sql.AnalysisException: using columns ['c1] can not be resolved given input columns: [c1, c2] ;;
'Join UsingJoin(Inner,List('c1))
:- Project [value#1 AS c1#3]
:  +- LocalRelation [value#1]
+- Project [value#7 AS c2#9]
   +- LocalRelation [value#7]
```

after this PR, it becomes:
```
scala> val df1 = List(1,2,3).toDS.withColumnRenamed("value", "c1")
df1: org.apache.spark.sql.DataFrame = [c1: int]

scala> val df2 = List(1,2,3).toDS.withColumnRenamed("value", "c2")
df2: org.apache.spark.sql.DataFrame = [c2: int]

scala> df1.join(df2, usingColumn = "c1")
org.apache.spark.sql.AnalysisException: USING column `c1` can not be resolved with the right join side, the right output is: [c2];
```

## How was this patch tested?

updated tests

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16100 from cloud-fan/natural.
2016-12-01 11:53:12 -08:00
gatorsmile b28fe4a4a9 [SPARK-18538][SQL] Fix Concurrent Table Fetching Using DataFrameReader JDBC APIs
### What changes were proposed in this pull request?
The following two `DataFrameReader` JDBC APIs ignore the user-specified parameters of parallelism degree.

```Scala
  def jdbc(
      url: String,
      table: String,
      columnName: String,
      lowerBound: Long,
      upperBound: Long,
      numPartitions: Int,
      connectionProperties: Properties): DataFrame
```

```Scala
  def jdbc(
      url: String,
      table: String,
      predicates: Array[String],
      connectionProperties: Properties): DataFrame
```

This PR is to fix the issues. To verify the behavior correctness, we improve the plan output of `EXPLAIN` command by adding `numPartitions` in the `JDBCRelation` node.

Before the fix,
```
== Physical Plan ==
*Scan JDBCRelation(TEST.PEOPLE) [NAME#1896,THEID#1897] ReadSchema: struct<NAME:string,THEID:int>
```

After the fix,
```
== Physical Plan ==
*Scan JDBCRelation(TEST.PEOPLE) [numPartitions=3] [NAME#1896,THEID#1897] ReadSchema: struct<NAME:string,THEID:int>
```
### How was this patch tested?
Added the verification logics on all the test cases for JDBC concurrent fetching.

Author: gatorsmile <gatorsmile@gmail.com>

Closes #15975 from gatorsmile/jdbc.
2016-12-01 15:42:30 +08:00
Shixiong Zhu c4979f6ea8 [SPARK-18655][SS] Ignore Structured Streaming 2.0.2 logs in history server
## What changes were proposed in this pull request?

As `queryStatus` in StreamingQueryListener events was removed in #15954, parsing 2.0.2 structured streaming logs will throw the following errror:

```
[info]   com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException: Unrecognized field "queryStatus" (class org.apache.spark.sql.streaming.StreamingQueryListener$QueryTerminatedEvent), not marked as ignorable (2 known properties: "id", "exception"])
[info]  at [Source: {"Event":"org.apache.spark.sql.streaming.StreamingQueryListener$QueryTerminatedEvent","queryStatus":{"name":"query-1","id":1,"timestamp":1480491532753,"inputRate":0.0,"processingRate":0.0,"latency":null,"sourceStatuses":[{"description":"FileStreamSource[file:/Users/zsx/stream]","offsetDesc":"#0","inputRate":0.0,"processingRate":0.0,"triggerDetails":{"latency.getOffset.source":"1","triggerId":"1"}}],"sinkStatus":{"description":"FileSink[/Users/zsx/stream2]","offsetDesc":"[#0]"},"triggerDetails":{}},"exception":null}; line: 1, column: 521] (through reference chain: org.apache.spark.sql.streaming.QueryTerminatedEvent["queryStatus"])
[info]   at com.fasterxml.jackson.databind.exc.UnrecognizedPropertyException.from(UnrecognizedPropertyException.java:51)
[info]   at com.fasterxml.jackson.databind.DeserializationContext.reportUnknownProperty(DeserializationContext.java:839)
[info]   at com.fasterxml.jackson.databind.deser.std.StdDeserializer.handleUnknownProperty(StdDeserializer.java:1045)
[info]   at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.handleUnknownProperty(BeanDeserializerBase.java:1352)
[info]   at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.handleUnknownProperties(BeanDeserializerBase.java:1306)
[info]   at com.fasterxml.jackson.databind.deser.BeanDeserializer._deserializeUsingPropertyBased(BeanDeserializer.java:453)
[info]   at com.fasterxml.jackson.databind.deser.BeanDeserializerBase.deserializeFromObjectUsingNonDefault(BeanDeserializerBase.java:1099)
...
```

This PR just ignores such errors and adds a test to make sure we can read 2.0.2 logs.

## How was this patch tested?

`query-event-logs-version-2.0.2.txt` has all types of events generated by Structured Streaming in Spark 2.0.2. `testQuietly("ReplayListenerBus should ignore broken event jsons generated in 2.0.2")` verified we can load them without any error.

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #16085 from zsxwing/SPARK-18655.
2016-11-30 16:18:53 -08:00
Wenchen Fan f135b70fd5 [SPARK-18251][SQL] the type of Dataset can't be Option of non-flat type
## What changes were proposed in this pull request?

For input object of non-flat type, we can't encode it to row if it's null, as Spark SQL doesn't allow the entire row to be null, only its columns can be null. That's the reason we forbid users to use top level null objects in https://github.com/apache/spark/pull/13469

However, if users wrap non-flat type with `Option`, then we may still encoder top level null object to row, which is not allowed.

This PR fixes this case, and suggests users to wrap their type with `Tuple1` if they do wanna top level null objects.

## How was this patch tested?

new test

Author: Wenchen Fan <wenchen@databricks.com>

Closes #15979 from cloud-fan/option.
2016-11-30 13:36:17 -08:00
jiangxingbo c24076dcf8 [SPARK-17932][SQL] Support SHOW TABLES EXTENDED LIKE 'identifier_with_wildcards' statement
## What changes were proposed in this pull request?

Currently we haven't implemented `SHOW TABLE EXTENDED` in Spark 2.0. This PR is to implement the statement.
Goals:
1. Support `SHOW TABLES EXTENDED LIKE 'identifier_with_wildcards'`;
2. Explicitly output an unsupported error message for `SHOW TABLES [EXTENDED] ... PARTITION` statement;
3. Improve test cases for `SHOW TABLES` statement.

## How was this patch tested?
1. Add new test cases in file `show-tables.sql`.
2. Modify tests for `SHOW TABLES` in `DDLSuite`.

Author: jiangxingbo <jiangxb1987@gmail.com>

Closes #15958 from jiangxb1987/show-table-extended.
2016-11-30 03:59:25 -08:00
gatorsmile 2eb093decb [SPARK-17897][SQL] Fixed IsNotNull Constraint Inference Rule
### What changes were proposed in this pull request?
The `constraints` of an operator is the expressions that evaluate to `true` for all the rows produced. That means, the expression result should be neither `false` nor `unknown` (NULL). Thus, we can conclude that `IsNotNull` on all the constraints, which are generated by its own predicates or propagated from the children. The constraint can be a complex expression. For better usage of these constraints, we try to push down `IsNotNull` to the lowest-level expressions (i.e., `Attribute`). `IsNotNull` can be pushed through an expression when it is null intolerant. (When the input is NULL, the null-intolerant expression always evaluates to NULL.)

Below is the existing code we have for `IsNotNull` pushdown.
```Scala
  private def scanNullIntolerantExpr(expr: Expression): Seq[Attribute] = expr match {
    case a: Attribute => Seq(a)
    case _: NullIntolerant | IsNotNull(_: NullIntolerant) =>
      expr.children.flatMap(scanNullIntolerantExpr)
    case _ => Seq.empty[Attribute]
  }
```

**`IsNotNull` itself is not null-intolerant.** It converts `null` to `false`. If the expression does not include any `Not`-like expression, it works; otherwise, it could generate a wrong result. This PR is to fix the above function by removing the `IsNotNull` from the inference. After the fix, when a constraint has a `IsNotNull` expression, we infer new attribute-specific `IsNotNull` constraints if and only if `IsNotNull` appears in the root.

Without the fix, the following test case will return empty.
```Scala
val data = Seq[java.lang.Integer](1, null).toDF("key")
data.filter("not key is not null").show()
```
Before the fix, the optimized plan is like
```
== Optimized Logical Plan ==
Project [value#1 AS key#3]
+- Filter (isnotnull(value#1) && NOT isnotnull(value#1))
   +- LocalRelation [value#1]
```

After the fix, the optimized plan is like
```
== Optimized Logical Plan ==
Project [value#1 AS key#3]
+- Filter NOT isnotnull(value#1)
   +- LocalRelation [value#1]
```

### How was this patch tested?
Added a test

Author: gatorsmile <gatorsmile@gmail.com>

Closes #16067 from gatorsmile/isNotNull2.
2016-11-30 19:40:58 +08:00
Herman van Hovell 879ba71110 [SPARK-18622][SQL] Fix the datatype of the Sum aggregate function
## What changes were proposed in this pull request?
The result of a `sum` aggregate function is typically a Decimal, Double or a Long. Currently the output dataType is based on input's dataType.

The `FunctionArgumentConversion` rule will make sure that the input is promoted to the largest type, and that also ensures that the output uses a (hopefully) sufficiently large output dataType. The issue is that sum is in a resolved state when we cast the input type, this means that rules assuming that the dataType of the expression does not change anymore could have been applied in the mean time. This is what happens if we apply `WidenSetOperationTypes` before applying the casts, and this breaks analysis.

The most straight forward and future proof solution is to make `sum` always output the widest dataType in its class (Long for IntegralTypes, Decimal for DecimalTypes & Double for FloatType and DoubleType). This PR implements that solution.

We should move expression specific type casting rules into the given Expression at some point.

## How was this patch tested?
Added (regression) tests to SQLQueryTestSuite's `union.sql`.

Author: Herman van Hovell <hvanhovell@databricks.com>

Closes #16063 from hvanhovell/SPARK-18622.
2016-11-30 15:25:33 +08:00
Tathagata Das bc09a2b8c3 [SPARK-18516][STRUCTURED STREAMING] Follow up PR to add StreamingQuery.status to Python
## What changes were proposed in this pull request?
- Add StreamingQueryStatus.json
- Make it not case class (to avoid unnecessarily exposing implicit object StreamingQueryStatus, consistent with StreamingQueryProgress)
- Add StreamingQuery.status to Python
- Fix post-termination status

## How was this patch tested?
New unit tests

Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #16075 from tdas/SPARK-18516-1.
2016-11-29 23:08:56 -08:00
Herman van Hovell af9789a4f5 [SPARK-18632][SQL] AggregateFunction should not implement ImplicitCastInputTypes
## What changes were proposed in this pull request?
`AggregateFunction` currently implements `ImplicitCastInputTypes` (which enables implicit input type casting). There are actually quite a few situations in which we don't need this, or require more control over our input. A recent example is the aggregate for `CountMinSketch` which should only take string, binary or integral types inputs.

This PR removes `ImplicitCastInputTypes` from the `AggregateFunction` and makes a case-by-case decision on what kind of input validation we should use.

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

Author: Herman van Hovell <hvanhovell@databricks.com>

Closes #16066 from hvanhovell/SPARK-18632.
2016-11-29 20:05:15 -08:00
Tathagata Das c3d08e2f29 [SPARK-18516][SQL] Split state and progress in streaming
This PR separates the status of a `StreamingQuery` into two separate APIs:
 - `status` - describes the status of a `StreamingQuery` at this moment, including what phase of processing is currently happening and if data is available.
 - `recentProgress` - an array of statistics about the most recent microbatches that have executed.

A recent progress contains the following information:
```
{
  "id" : "2be8670a-fce1-4859-a530-748f29553bb6",
  "name" : "query-29",
  "timestamp" : 1479705392724,
  "inputRowsPerSecond" : 230.76923076923077,
  "processedRowsPerSecond" : 10.869565217391303,
  "durationMs" : {
    "triggerExecution" : 276,
    "queryPlanning" : 3,
    "getBatch" : 5,
    "getOffset" : 3,
    "addBatch" : 234,
    "walCommit" : 30
  },
  "currentWatermark" : 0,
  "stateOperators" : [ ],
  "sources" : [ {
    "description" : "KafkaSource[Subscribe[topic-14]]",
    "startOffset" : {
      "topic-14" : {
        "2" : 0,
        "4" : 1,
        "1" : 0,
        "3" : 0,
        "0" : 0
      }
    },
    "endOffset" : {
      "topic-14" : {
        "2" : 1,
        "4" : 2,
        "1" : 0,
        "3" : 0,
        "0" : 1
      }
    },
    "numRecords" : 3,
    "inputRowsPerSecond" : 230.76923076923077,
    "processedRowsPerSecond" : 10.869565217391303
  } ]
}
```

Additionally, in order to make it possible to correlate progress updates across restarts, we change the `id` field from an integer that is unique with in the JVM to a `UUID` that is globally unique.

Author: Tathagata Das <tathagata.das1565@gmail.com>
Author: Michael Armbrust <michael@databricks.com>

Closes #15954 from marmbrus/queryProgress.
2016-11-29 17:24:17 -08:00
Nattavut Sutyanyong 3600635215 [SPARK-18614][SQL] Incorrect predicate pushdown from ExistenceJoin
## What changes were proposed in this pull request?

ExistenceJoin should be treated the same as LeftOuter and LeftAnti, not InnerLike and LeftSemi. This is not currently exposed because the rewrite of [NOT] EXISTS OR ... to ExistenceJoin happens in rule RewritePredicateSubquery, which is in a separate rule set and placed after the rule PushPredicateThroughJoin. During the transformation in the rule PushPredicateThroughJoin, an ExistenceJoin never exists.

The semantics of ExistenceJoin says we need to preserve all the rows from the left table through the join operation as if it is a regular LeftOuter join. The ExistenceJoin augments the LeftOuter operation with a new column called exists, set to true when the join condition in the ON clause is true and false otherwise. The filter of any rows will happen in the Filter operation above the ExistenceJoin.

Example:

A(c1, c2): { (1, 1), (1, 2) }
// B can be any value as it is irrelevant in this example
B(c1): { (NULL) }

select A.*
from   A
where  exists (select 1 from B where A.c1 = A.c2)
       or A.c2=2

In this example, the correct result is all the rows from A. If the pattern ExistenceJoin around line 935 in Optimizer.scala is indeed active, the code will push down the predicate A.c1 = A.c2 to be a Filter on relation A, which will incorrectly filter the row (1,2) from A.

## How was this patch tested?

Since this is not an exposed case, no new test cases is added. The scenario is discovered via a code review of another PR and confirmed to be valid with peer.

Author: Nattavut Sutyanyong <nsy.can@gmail.com>

Closes #16044 from nsyca/spark-18614.
2016-11-29 15:27:43 -08:00
Mark Hamstra f8878a4c6f [SPARK-18631][SQL] Changed ExchangeCoordinator re-partitioning to avoid more data skew
## What changes were proposed in this pull request?

Re-partitioning logic in ExchangeCoordinator changed so that adding another pre-shuffle partition to the post-shuffle partition will not be done if doing so would cause the size of the post-shuffle partition to exceed the target partition size.

## How was this patch tested?

Existing tests updated to reflect new expectations.

Author: Mark Hamstra <markhamstra@gmail.com>

Closes #16065 from markhamstra/SPARK-17064.
2016-11-29 15:01:12 -08:00
wangzhenhua d57a594b8b [SPARK-18429][SQL] implement a new Aggregate for CountMinSketch
## What changes were proposed in this pull request?

This PR implements a new Aggregate to generate count min sketch, which is a wrapper of CountMinSketch.

## How was this patch tested?

add test cases

Author: wangzhenhua <wangzhenhua@huawei.com>

Closes #15877 from wzhfy/cms.
2016-11-29 13:16:46 -08:00
Tyson Condie f643fe47f4 [SPARK-18498][SQL] Revise HDFSMetadataLog API for better testing
Revise HDFSMetadataLog API such that metadata object serialization and final batch file write are separated. This will allow serialization checks without worrying about batch file name formats. marmbrus zsxwing

Existing tests already ensure this API faithfully support core functionality i.e., creation of batch files.

Author: Tyson Condie <tcondie@gmail.com>

Closes #15924 from tcondie/SPARK-18498.

Signed-off-by: Michael Armbrust <michael@databricks.com>
2016-11-29 12:37:36 -08:00
hyukjinkwon f830bb9170
[SPARK-3359][DOCS] Make javadoc8 working for unidoc/genjavadoc compatibility in Java API documentation
## What changes were proposed in this pull request?

This PR make `sbt unidoc` complete with Java 8.

This PR roughly includes several fixes as below:

- Fix unrecognisable class and method links in javadoc by changing it from `[[..]]` to `` `...` ``

  ```diff
  - * A column that will be computed based on the data in a [[DataFrame]].
  + * A column that will be computed based on the data in a `DataFrame`.
  ```

- Fix throws annotations so that they are recognisable in javadoc

- Fix URL links to `<a href="http..."></a>`.

  ```diff
  - * [[http://en.wikipedia.org/wiki/Decision_tree_learning Decision tree]] model for regression.
  + * <a href="http://en.wikipedia.org/wiki/Decision_tree_learning">
  + * Decision tree (Wikipedia)</a> model for regression.
  ```

  ```diff
  -   * see http://en.wikipedia.org/wiki/Receiver_operating_characteristic
  +   * see <a href="http://en.wikipedia.org/wiki/Receiver_operating_characteristic">
  +   * Receiver operating characteristic (Wikipedia)</a>
  ```

- Fix < to > to

  - `greater than`/`greater than or equal to` or `less than`/`less than or equal to` where applicable.

  - Wrap it with `{{{...}}}` to print them in javadoc or use `{code ...}` or `{literal ..}`. Please refer https://github.com/apache/spark/pull/16013#discussion_r89665558

- Fix `</p>` complaint

## How was this patch tested?

Manually tested by `jekyll build` with Java 7 and 8

```
java version "1.7.0_80"
Java(TM) SE Runtime Environment (build 1.7.0_80-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)
```

```
java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)
```

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #16013 from HyukjinKwon/SPARK-3359-errors-more.
2016-11-29 09:41:32 +00:00
Tyson Condie 3c0beea475 [SPARK-18339][SPARK-18513][SQL] Don't push down current_timestamp for filters in StructuredStreaming and persist batch and watermark timestamps to offset log.
## What changes were proposed in this pull request?

For the following workflow:
1. I have a column called time which is at minute level precision in a Streaming DataFrame
2. I want to perform groupBy time, count
3. Then I want my MemorySink to only have the last 30 minutes of counts and I perform this by
.where('time >= current_timestamp().cast("long") - 30 * 60)
what happens is that the `filter` gets pushed down before the aggregation, and the filter happens on the source data for the aggregation instead of the result of the aggregation (where I actually want to filter).
I guess the main issue here is that `current_timestamp` is non-deterministic in the streaming context and shouldn't be pushed down the filter.
Does this require us to store the `current_timestamp` for each trigger of the streaming job, that is something to discuss.

Furthermore, we want to persist current batch timestamp and watermark timestamp to the offset log so that these values are consistent across multiple executions of the same batch.

brkyvz zsxwing tdas

## How was this patch tested?

A test was added to StreamingAggregationSuite ensuring the above use case is handled. The test injects a stream of time values (in seconds) to a query that runs in complete mode and only outputs the (count) aggregation results for the past 10 seconds.

Author: Tyson Condie <tcondie@gmail.com>

Closes #15949 from tcondie/SPARK-18339.
2016-11-28 23:07:17 -08:00
Eric Liang e2318ede04 [SPARK-18544][SQL] Append with df.saveAsTable writes data to wrong location
## What changes were proposed in this pull request?

We failed to properly propagate table metadata for existing tables for the saveAsTable command. This caused a downstream component to think the table was MANAGED, writing data to the wrong location.

## How was this patch tested?

Unit test that fails before the patch.

Author: Eric Liang <ekl@databricks.com>

Closes #15983 from ericl/spark-18544.
2016-11-28 21:58:01 -08:00
Herman van Hovell d449988b88 [SPARK-18058][SQL][TRIVIAL] Use dataType.sameResult(...) instead equality on asNullable datatypes
## What changes were proposed in this pull request?
This is absolutely minor. PR https://github.com/apache/spark/pull/15595 uses `dt1.asNullable == dt2.asNullable` expressions in a few places. It is however more efficient to call `dt1.sameType(dt2)`. I have replaced every instance of the first pattern with the second pattern (3/5 were introduced by #15595).

## How was this patch tested?
Existing tests.

Author: Herman van Hovell <hvanhovell@databricks.com>

Closes #16041 from hvanhovell/SPARK-18058.
2016-11-28 21:43:33 -08:00
Cheng Lian 2e809903d4 [SPARK-18403][SQL] Fix unsafe data false sharing issue in ObjectHashAggregateExec
## What changes were proposed in this pull request?

This PR fixes a random OOM issue occurred while running `ObjectHashAggregateSuite`.

This issue can be steadily reproduced under the following conditions:

1. The aggregation must be evaluated using `ObjectHashAggregateExec`;
2. There must be an input column whose data type involves `ArrayType` (an input column of `MapType` may even cause SIGSEGV);
3. Sort-based aggregation fallback must be triggered during evaluation.

The root cause is that while falling back to sort-based aggregation, we must sort and feed already evaluated partial aggregation buffers living in the hash map to the sort-based aggregator using an external sorter. However, the underlying mutable byte buffer of `UnsafeRow`s produced by the iterator of the external sorter is reused and may get overwritten when the iterator steps forward. After the last entry is consumed, the byte buffer points to a block of uninitialized memory filled by `5a`. Therefore, while reading an `UnsafeArrayData` out of the `UnsafeRow`, `5a5a5a5a` is treated as array size and triggers a memory allocation for a ridiculously large array and immediately blows up the JVM with an OOM.

To fix this issue, we only need to add `.copy()` accordingly.

## How was this patch tested?

New regression test case added in `ObjectHashAggregateSuite`.

Author: Cheng Lian <lian@databricks.com>

Closes #15976 from liancheng/investigate-oom.
2016-11-29 09:01:03 +08:00
Kazuaki Ishizaki ad67993b73 [SPARK-17680][SQL][TEST] Added test cases for InMemoryRelation
## What changes were proposed in this pull request?

This pull request adds test cases for the following cases:
- keep all data types with null or without null
- access `CachedBatch` disabling whole stage codegen
- access only some columns in `CachedBatch`

This PR is a part of https://github.com/apache/spark/pull/15219. Here are motivations to add these tests. When https://github.com/apache/spark/pull/15219 is enabled, the first two cases are handled by specialized (generated) code. The third one is a pitfall.

In general, even for now, it would be helpful to increase test coverage.
## How was this patch tested?

added test suites itself

Author: Kazuaki Ishizaki <ishizaki@jp.ibm.com>

Closes #15462 from kiszk/columnartestsuites.
2016-11-28 14:06:37 -05:00
Wenchen Fan 185642846e [SQL][MINOR] DESC should use 'Catalog' as partition provider
## What changes were proposed in this pull request?

`CatalogTable` has a parameter named `tracksPartitionsInCatalog`, and in `CatalogTable.toString` we use `"Partition Provider: Catalog"` to represent it. This PR fixes `DESC TABLE` to make it consistent with `CatalogTable.toString`.

## How was this patch tested?

N/A

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16035 from cloud-fan/minor.
2016-11-28 10:57:17 -08:00
Wenchen Fan d31ff9b7ca [SPARK-17732][SQL] Revert ALTER TABLE DROP PARTITION should support comparators
## What changes were proposed in this pull request?

https://github.com/apache/spark/pull/15704 will fail if we use int literal in `DROP PARTITION`, and we have reverted it in branch-2.1.

This PR reverts it in master branch, and add a regression test for it, to make sure the master branch is healthy.

## How was this patch tested?

new regression test

Author: Wenchen Fan <wenchen@databricks.com>

Closes #16036 from cloud-fan/revert.
2016-11-28 08:46:00 -08:00
Herman van Hovell 38e29824d9 [SPARK-18597][SQL] Do not push-down join conditions to the right side of a LEFT ANTI join
## What changes were proposed in this pull request?
We currently push down join conditions of a Left Anti join to both sides of the join. This is similar to Inner, Left Semi and Existence (a specialized left semi) join. The problem is that this changes the semantics of the join; a left anti join filters out rows that matches the join condition.

This PR fixes this by only pushing down conditions to the left hand side of the join. This is similar to the behavior of left outer join.

## How was this patch tested?
Added tests to `FilterPushdownSuite.scala` and created a SQLQueryTestSuite file for left anti joins with a regression test.

Author: Herman van Hovell <hvanhovell@databricks.com>

Closes #16026 from hvanhovell/SPARK-18597.
2016-11-28 07:10:52 -08:00
gatorsmile 9f273c5173 [SPARK-17783][SQL] Hide Credentials in CREATE and DESC FORMATTED/EXTENDED a PERSISTENT/TEMP Table for JDBC
### What changes were proposed in this pull request?

We should never expose the Credentials in the EXPLAIN and DESC FORMATTED/EXTENDED command. However, below commands exposed the credentials.

In the related PR: https://github.com/apache/spark/pull/10452

> URL patterns to specify credential seems to be vary between different databases.

Thus, we hide the whole `url` value if it contains the keyword `password`. We also hide the `password` property.

Before the fix, the command outputs look like:

``` SQL
CREATE TABLE tab1
USING org.apache.spark.sql.jdbc
OPTIONS (
 url 'jdbc:h2:mem:testdb0;user=testUser;password=testPass',
 dbtable 'TEST.PEOPLE',
 user 'testUser',
 password '$password')

DESC FORMATTED tab1
DESC EXTENDED tab1
```

Before the fix,
- The output of SQL statement EXPLAIN
```
== Physical Plan ==
ExecutedCommand
   +- CreateDataSourceTableCommand CatalogTable(
	Table: `tab1`
	Created: Wed Nov 16 23:00:10 PST 2016
	Last Access: Wed Dec 31 15:59:59 PST 1969
	Type: MANAGED
	Provider: org.apache.spark.sql.jdbc
	Storage(Properties: [url=jdbc:h2:mem:testdb0;user=testUser;password=testPass, dbtable=TEST.PEOPLE, user=testUser, password=testPass])), false
```

- The output of `DESC FORMATTED`
```
...
|Storage Desc Parameters:    |                                                                  |       |
|  url                       |jdbc:h2:mem:testdb0;user=testUser;password=testPass               |       |
|  dbtable                   |TEST.PEOPLE                                                       |       |
|  user                      |testUser                                                          |       |
|  password                  |testPass                                                          |       |
+----------------------------+------------------------------------------------------------------+-------+
```

- The output of `DESC EXTENDED`
```
|# Detailed Table Information|CatalogTable(
	Table: `default`.`tab1`
	Created: Wed Nov 16 23:00:10 PST 2016
	Last Access: Wed Dec 31 15:59:59 PST 1969
	Type: MANAGED
	Schema: [StructField(NAME,StringType,false), StructField(THEID,IntegerType,false)]
	Provider: org.apache.spark.sql.jdbc
	Storage(Location: file:/Users/xiaoli/IdeaProjects/sparkDelivery/spark-warehouse/tab1, Properties: [url=jdbc:h2:mem:testdb0;user=testUser;password=testPass, dbtable=TEST.PEOPLE, user=testUser, password=testPass]))|       |
```

After the fix,
- The output of SQL statement EXPLAIN
```
== Physical Plan ==
ExecutedCommand
   +- CreateDataSourceTableCommand CatalogTable(
	Table: `tab1`
	Created: Wed Nov 16 22:43:49 PST 2016
	Last Access: Wed Dec 31 15:59:59 PST 1969
	Type: MANAGED
	Provider: org.apache.spark.sql.jdbc
	Storage(Properties: [url=###, dbtable=TEST.PEOPLE, user=testUser, password=###])), false
```
- The output of `DESC FORMATTED`
```
...
|Storage Desc Parameters:    |                                                                  |       |
|  url                       |###                                                               |       |
|  dbtable                   |TEST.PEOPLE                                                       |       |
|  user                      |testUser                                                          |       |
|  password                  |###                                                               |       |
+----------------------------+------------------------------------------------------------------+-------+
```

- The output of `DESC EXTENDED`
```
|# Detailed Table Information|CatalogTable(
	Table: `default`.`tab1`
	Created: Wed Nov 16 22:43:49 PST 2016
	Last Access: Wed Dec 31 15:59:59 PST 1969
	Type: MANAGED
	Schema: [StructField(NAME,StringType,false), StructField(THEID,IntegerType,false)]
	Provider: org.apache.spark.sql.jdbc
	Storage(Location: file:/Users/xiaoli/IdeaProjects/sparkDelivery/spark-warehouse/tab1, Properties: [url=###, dbtable=TEST.PEOPLE, user=testUser, password=###]))|       |
```

### How was this patch tested?

Added test cases

Author: gatorsmile <gatorsmile@gmail.com>

Closes #15358 from gatorsmile/maskCredentials.
2016-11-28 07:04:38 -08:00
Kazuaki Ishizaki f075cd9cb7 [SPARK-18118][SQL] fix a compilation error due to nested JavaBeans
## What changes were proposed in this pull request?

This PR avoids a compilation error due to more than 64KB Java byte code size. This error occur since generated java code `SpecificSafeProjection.apply()` for nested JavaBeans is too big. This PR avoids this compilation error by splitting a big code chunk into multiple methods by calling `CodegenContext.splitExpression` at `InitializeJavaBean.doGenCode`
An object reference for JavaBean is stored to an instance variable `javaBean...`. Then, the instance variable will be referenced in the split methods.

Generated code with this PR
````
/* 22098 */   private void apply130_0(InternalRow i) {
...
/* 22125 */     boolean isNull238 = i.isNullAt(2);
/* 22126 */     InternalRow value238 = isNull238 ? null : (i.getStruct(2, 3));
/* 22127 */     boolean isNull236 = false;
/* 22128 */     test.org.apache.spark.sql.JavaDatasetSuite$Nesting1 value236 = null;
/* 22129 */     if (!false && isNull238) {
/* 22130 */
/* 22131 */       final test.org.apache.spark.sql.JavaDatasetSuite$Nesting1 value239 = null;
/* 22132 */       isNull236 = true;
/* 22133 */       value236 = value239;
/* 22134 */     } else {
/* 22135 */
/* 22136 */       final test.org.apache.spark.sql.JavaDatasetSuite$Nesting1 value241 = false ? null : new test.org.apache.spark.sql.JavaDatasetSuite$Nesting1();
/* 22137 */       this.javaBean14 = value241;
/* 22138 */       if (!false) {
/* 22139 */         apply25_0(i);
/* 22140 */         apply25_1(i);
/* 22141 */         apply25_2(i);
/* 22142 */       }
/* 22143 */       isNull236 = false;
/* 22144 */       value236 = value241;
/* 22145 */     }
/* 22146 */     this.javaBean.setField2(value236);
/* 22147 */
/* 22148 */   }
...
/* 22928 */   public java.lang.Object apply(java.lang.Object _i) {
/* 22929 */     InternalRow i = (InternalRow) _i;
/* 22930 */
/* 22931 */     final test.org.apache.spark.sql.JavaDatasetSuite$NestedComplicatedJavaBean value1 = false ? null : new test.org.apache.spark.sql.JavaDatasetSuite$NestedComplicatedJavaBean();
/* 22932 */     this.javaBean = value1;
/* 22933 */     if (!false) {
/* 22934 */       apply130_0(i);
/* 22935 */       apply130_1(i);
/* 22936 */       apply130_2(i);
/* 22937 */       apply130_3(i);
/* 22938 */       apply130_4(i);
/* 22939 */     }
/* 22940 */     if (false) {
/* 22941 */       mutableRow.setNullAt(0);
/* 22942 */     } else {
/* 22943 */
/* 22944 */       mutableRow.update(0, value1);
/* 22945 */     }
/* 22946 */
/* 22947 */     return mutableRow;
/* 22948 */   }
````

## How was this patch tested?

added a test suite into `JavaDatasetSuite.java`

Author: Kazuaki Ishizaki <ishizaki@jp.ibm.com>

Closes #16032 from kiszk/SPARK-18118.
2016-11-28 04:18:35 -08:00
gatorsmile 07f32c2283 [SPARK-18594][SQL] Name Validation of Databases/Tables
### What changes were proposed in this pull request?
Currently, the name validation checks are limited to table creation. It is enfored by Analyzer rule: `PreWriteCheck`.

However, table renaming and database creation have the same issues. It makes more sense to do the checks in `SessionCatalog`. This PR is to add it into `SessionCatalog`.

### How was this patch tested?
Added test cases

Author: gatorsmile <gatorsmile@gmail.com>

Closes #16018 from gatorsmile/nameValidate.
2016-11-27 19:43:24 -08:00
Weiqing Yang f4a98e421e
[WIP][SQL][DOC] Fix incorrect code tag
## What changes were proposed in this pull request?
This PR is to fix incorrect `code` tag in `sql-programming-guide.md`

## How was this patch tested?
Manually.

Author: Weiqing Yang <yangweiqing001@gmail.com>

Closes #15941 from weiqingy/fixtag.
2016-11-26 15:41:37 +00:00
jiangxingbo e2fb9fd365 [SPARK-18436][SQL] isin causing SQL syntax error with JDBC
## What changes were proposed in this pull request?

The expression `in(empty seq)` is invalid in some data source. Since `in(empty seq)` is always false, we should generate `in(empty seq)` to false literal in optimizer.
The sql `SELECT * FROM t WHERE a IN ()` throws a `ParseException` which is consistent with Hive, don't need to change that behavior.

## How was this patch tested?
Add new test case in `OptimizeInSuite`.

Author: jiangxingbo <jiangxb1987@gmail.com>

Closes #15977 from jiangxb1987/isin-empty.
2016-11-25 12:44:34 -08:00
Dongjoon Hyun fb07bbe575 [SPARK-18413][SQL][FOLLOW-UP] Use numPartitions instead of maxConnections
## What changes were proposed in this pull request?

This is a follow-up PR of #15868 to merge `maxConnections` option into `numPartitions` options.

## How was this patch tested?

Pass the existing tests.

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #15966 from dongjoon-hyun/SPARK-18413-2.
2016-11-25 10:35:07 -08:00
hyukjinkwon 51b1c1551d
[SPARK-3359][BUILD][DOCS] More changes to resolve javadoc 8 errors that will help unidoc/genjavadoc compatibility
## What changes were proposed in this pull request?

This PR only tries to fix things that looks pretty straightforward and were fixed in other previous PRs before.

This PR roughly fixes several things as below:

- Fix unrecognisable class and method links in javadoc by changing it from `[[..]]` to `` `...` ``

  ```
  [error] .../spark/sql/core/target/java/org/apache/spark/sql/streaming/DataStreamReader.java:226: error: reference not found
  [error]    * Loads text files and returns a {link DataFrame} whose schema starts with a string column named
  ```

- Fix an exception annotation and remove code backticks in `throws` annotation

  Currently, sbt unidoc with Java 8 complains as below:

  ```
  [error] .../java/org/apache/spark/sql/streaming/StreamingQuery.java:72: error: unexpected text
  [error]    * throws StreamingQueryException, if <code>this</code> query has terminated with an exception.
  ```

  `throws` should specify the correct class name from `StreamingQueryException,` to `StreamingQueryException` without backticks. (see [JDK-8007644](https://bugs.openjdk.java.net/browse/JDK-8007644)).

- Fix `[[http..]]` to `<a href="http..."></a>`.

  ```diff
  -   * [[https://blogs.oracle.com/java-platform-group/entry/diagnosing_tls_ssl_and_https Oracle
  -   * blog page]].
  +   * <a href="https://blogs.oracle.com/java-platform-group/entry/diagnosing_tls_ssl_and_https">
  +   * Oracle blog page</a>.
  ```

   `[[http...]]` link markdown in scaladoc is unrecognisable in javadoc.

- It seems class can't have `return` annotation. So, two cases of this were removed.

  ```
  [error] .../java/org/apache/spark/mllib/regression/IsotonicRegression.java:27: error: invalid use of return
  [error]    * return New instance of IsotonicRegression.
  ```

- Fix < to `&lt;` and > to `&gt;` according to HTML rules.

- Fix `</p>` complaint

- Exclude unrecognisable in javadoc, `constructor`, `todo` and `groupname`.

## How was this patch tested?

Manually tested by `jekyll build` with Java 7 and 8

```
java version "1.7.0_80"
Java(TM) SE Runtime Environment (build 1.7.0_80-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)
```

```
java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode)
```

Note: this does not yet make sbt unidoc suceed with Java 8 yet but it reduces the number of errors with Java 8.

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #15999 from HyukjinKwon/SPARK-3359-errors.
2016-11-25 11:27:07 +00:00
Nattavut Sutyanyong a367d5ff00 [SPARK-18578][SQL] Full outer join in correlated subquery returns incorrect results
## What changes were proposed in this pull request?

- Raise Analysis exception when correlated predicates exist in the descendant operators of either operand of a Full outer join in a subquery as well as in a FOJ operator itself
- Raise Analysis exception when correlated predicates exists in a Window operator (a side effect inadvertently introduced by SPARK-17348)

## How was this patch tested?

Run sql/test catalyst/test and new test cases, added to SubquerySuite, showing the reported incorrect results.

Author: Nattavut Sutyanyong <nsy.can@gmail.com>

Closes #16005 from nsyca/FOJ-incorrect.1.
2016-11-24 12:07:55 -08:00
Shixiong Zhu 223fa218e1 [SPARK-18510][SQL] Follow up to address comments in #15951
## What changes were proposed in this pull request?

This PR addressed the rest comments in #15951.

## How was this patch tested?

Jenkins

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #15997 from zsxwing/SPARK-18510-follow-up.
2016-11-23 16:15:35 -08:00
Burak Yavuz 0d1bf2b6c8 [SPARK-18510] Fix data corruption from inferred partition column dataTypes
## What changes were proposed in this pull request?

### The Issue

If I specify my schema when doing
```scala
spark.read
  .schema(someSchemaWherePartitionColumnsAreStrings)
```
but if the partition inference can infer it as IntegerType or I assume LongType or DoubleType (basically fixed size types), then once UnsafeRows are generated, your data will be corrupted.

### Proposed solution

The partition handling code path is kind of a mess. In my fix I'm probably adding to the mess, but at least trying to standardize the code path.

The real issue is that a user that uses the `spark.read` code path can never clearly specify what the partition columns are. If you try to specify the fields in `schema`, we practically ignore what the user provides, and fall back to our inferred data types. What happens in the end is data corruption.

My solution tries to fix this by always trying to infer partition columns the first time you specify the table. Once we find what the partition columns are, we try to find them in the user specified schema and use the dataType provided there, or fall back to the smallest common data type.

We will ALWAYS append partition columns to the user's schema, even if they didn't ask for it. We will only use the data type they provided if they specified it. While this is confusing, this has been the behavior since Spark 1.6, and I didn't want to change this behavior in the QA period of Spark 2.1. We may revisit this decision later.

A side effect of this PR is that we won't need https://github.com/apache/spark/pull/15942 if this PR goes in.

## How was this patch tested?

Regression tests

Author: Burak Yavuz <brkyvz@gmail.com>

Closes #15951 from brkyvz/partition-corruption.
2016-11-23 11:48:59 -08:00
Wenchen Fan f129ebcd30 [SPARK-18050][SQL] do not create default database if it already exists
## What changes were proposed in this pull request?

When we try to create the default database, we ask hive to do nothing if it already exists. However, Hive will log an error message instead of doing nothing, and the error message is quite annoying and confusing.

In this PR, we only create default database if it doesn't exist.

## How was this patch tested?

N/A

Author: Wenchen Fan <wenchen@databricks.com>

Closes #15993 from cloud-fan/default-db.
2016-11-23 12:54:18 -05:00
Reynold Xin 70ad07a9d2 [SPARK-18522][SQL] Explicit contract for column stats serialization
## What changes were proposed in this pull request?
The current implementation of column stats uses the base64 encoding of the internal UnsafeRow format to persist statistics (in table properties in Hive metastore). This is an internal format that is not stable across different versions of Spark and should NOT be used for persistence. In addition, it would be better if statistics stored in the catalog is human readable.

This pull request introduces the following changes:

1. Created a single ColumnStat class to for all data types. All data types track the same set of statistics.
2. Updated the implementation for stats collection to get rid of the dependency on internal data structures (e.g. InternalRow, or storing DateType as an int32). For example, previously dates were stored as a single integer, but are now stored as java.sql.Date. When we implement the next steps of CBO, we can add code to convert those back into internal types again.
3. Documented clearly what JVM data types are being used to store what data.
4. Defined a simple Map[String, String] interface for serializing and deserializing column stats into/from the catalog.
5. Rearranged the method/function structure so it is more clear what the supported data types are, and also moved how stats are generated into ColumnStat class so they are easy to find.

## How was this patch tested?
Removed most of the original test cases created for column statistics, and added three very simple ones to cover all the cases. The three test cases validate:
1. Roundtrip serialization works.
2. Behavior when analyzing non-existent column or unsupported data type column.
3. Result for stats collection for all valid data types.

Also moved parser related tests into a parser test suite and added an explicit serialization test for the Hive external catalog.

Author: Reynold Xin <rxin@databricks.com>

Closes #15959 from rxin/SPARK-18522.
2016-11-23 20:48:41 +08:00
Wenchen Fan 84284e8c82 [SPARK-18053][SQL] compare unsafe and safe complex-type values correctly
## What changes were proposed in this pull request?

In Spark SQL, some expression may output safe format values, e.g. `CreateArray`, `CreateStruct`, `Cast`, etc. When we compare 2 values, we should be able to compare safe and unsafe formats.

The `GreaterThan`, `LessThan`, etc. in Spark SQL already handles it, but the `EqualTo` doesn't. This PR fixes it.

## How was this patch tested?

new unit test and regression test

Author: Wenchen Fan <wenchen@databricks.com>

Closes #15929 from cloud-fan/type-aware.
2016-11-23 04:15:19 -08:00
Sean Owen 7e0cd1d9b1
[SPARK-18073][DOCS][WIP] Migrate wiki to spark.apache.org web site
## What changes were proposed in this pull request?

Updates links to the wiki to links to the new location of content on spark.apache.org.

## How was this patch tested?

Doc builds

Author: Sean Owen <sowen@cloudera.com>

Closes #15967 from srowen/SPARK-18073.1.
2016-11-23 11:25:47 +00:00
Dilip Biswal 39a1d30636 [SPARK-18533] Raise correct error upon specification of schema for datasource tables created using CTAS
## What changes were proposed in this pull request?
Fixes the inconsistency of error raised between data source and hive serde
tables when schema is specified in CTAS scenario. In the process the grammar for
create table (datasource) is simplified.

**before:**
``` SQL
spark-sql> create table t2 (c1 int, c2 int) using parquet as select * from t1;
Error in query:
mismatched input 'as' expecting {<EOF>, '.', 'OPTIONS', 'CLUSTERED', 'PARTITIONED'}(line 1, pos 64)

== SQL ==
create table t2 (c1 int, c2 int) using parquet as select * from t1
----------------------------------------------------------------^^^
```

**After:**
```SQL
spark-sql> create table t2 (c1 int, c2 int) using parquet as select * from t1
         > ;
Error in query:
Operation not allowed: Schema may not be specified in a Create Table As Select (CTAS) statement(line 1, pos 0)

== SQL ==
create table t2 (c1 int, c2 int) using parquet as select * from t1
^^^
```
## How was this patch tested?
Added a new test in CreateTableAsSelectSuite

Author: Dilip Biswal <dbiswal@us.ibm.com>

Closes #15968 from dilipbiswal/ctas.
2016-11-22 15:57:07 -08:00
gatorsmile 9c42d4a76c [SPARK-16803][SQL] SaveAsTable does not work when target table is a Hive serde table
### What changes were proposed in this pull request?

In Spark 2.0, `SaveAsTable` does not work when the target table is a Hive serde table, but Spark 1.6 works.

**Spark 1.6**

``` Scala
scala> sql("create table sample.sample stored as SEQUENCEFILE as select 1 as key, 'abc' as value")
res2: org.apache.spark.sql.DataFrame = []

scala> val df = sql("select key, value as value from sample.sample")
df: org.apache.spark.sql.DataFrame = [key: int, value: string]

scala> df.write.mode("append").saveAsTable("sample.sample")

scala> sql("select * from sample.sample").show()
+---+-----+
|key|value|
+---+-----+
|  1|  abc|
|  1|  abc|
+---+-----+
```

**Spark 2.0**

``` Scala
scala> df.write.mode("append").saveAsTable("sample.sample")
org.apache.spark.sql.AnalysisException: Saving data in MetastoreRelation sample, sample
 is not supported.;
```

So far, we do not plan to support it in Spark 2.1 due to the risk. Spark 1.6 works because it internally uses insertInto. But, if we change it back it will break the semantic of saveAsTable (this method uses by-name resolution instead of using by-position resolution used by insertInto). More extra changes are needed to support `hive` as a `format` in DataFrameWriter.

Instead, users should use insertInto API. This PR corrects the error messages. Users can understand how to bypass it before we support it in a separate PR.
### How was this patch tested?

Test cases are added

Author: gatorsmile <gatorsmile@gmail.com>

Closes #15926 from gatorsmile/saveAsTableFix5.
2016-11-22 15:10:49 -08:00
Burak Yavuz bdc8153e86 [SPARK-18465] Add 'IF EXISTS' clause to 'UNCACHE' to not throw exceptions when table doesn't exist
## What changes were proposed in this pull request?

While this behavior is debatable, consider the following use case:
```sql
UNCACHE TABLE foo;
CACHE TABLE foo AS
SELECT * FROM bar
```
The command above fails the first time you run it. But I want to run the command above over and over again, and I don't want to change my code just for the first run of it.
The issue is that subsequent `CACHE TABLE` commands do not overwrite the existing table.

Now we can do:
```sql
UNCACHE TABLE IF EXISTS foo;
CACHE TABLE foo AS
SELECT * FROM bar
```

## How was this patch tested?

Unit tests

Author: Burak Yavuz <brkyvz@gmail.com>

Closes #15896 from brkyvz/uncache.
2016-11-22 13:03:50 -08:00
Nattavut Sutyanyong 45ea46b7b3 [SPARK-18504][SQL] Scalar subquery with extra group by columns returning incorrect result
## What changes were proposed in this pull request?

This PR blocks an incorrect result scenario in scalar subquery where there are GROUP BY column(s)
that are not part of the correlated predicate(s).

Example:
// Incorrect result
Seq(1).toDF("c1").createOrReplaceTempView("t1")
Seq((1,1),(1,2)).toDF("c1","c2").createOrReplaceTempView("t2")
sql("select (select sum(-1) from t2 where t1.c1=t2.c1 group by t2.c2) from t1").show

// How can selecting a scalar subquery from a 1-row table return 2 rows?

## How was this patch tested?
sql/test, catalyst/test
new test case covering the reported problem is added to SubquerySuite.scala

Author: Nattavut Sutyanyong <nsy.can@gmail.com>

Closes #15936 from nsyca/scalarSubqueryIncorrect-1.
2016-11-22 12:06:21 -08:00
Liwei Lin ebeb0830a3 [SPARK-18425][STRUCTURED STREAMING][TESTS] Test CompactibleFileStreamLog directly
## What changes were proposed in this pull request?

Right now we are testing the most of `CompactibleFileStreamLog` in `FileStreamSinkLogSuite` (because `FileStreamSinkLog` once was the only subclass of `CompactibleFileStreamLog`, but now it's not the case any more).

Let's refactor the tests so that `CompactibleFileStreamLog` is directly tested, making future changes (like https://github.com/apache/spark/pull/15828, https://github.com/apache/spark/pull/15827) to `CompactibleFileStreamLog` much easier to test and much easier to review.

## How was this patch tested?

the PR itself is about tests

Author: Liwei Lin <lwlin7@gmail.com>

Closes #15870 from lw-lin/test-compact-1113.
2016-11-21 21:14:13 -08:00
Burak Yavuz 97a8239a62 [SPARK-18493] Add missing python APIs: withWatermark and checkpoint to dataframe
## What changes were proposed in this pull request?

This PR adds two of the newly added methods of `Dataset`s to Python:
`withWatermark` and `checkpoint`

## How was this patch tested?

Doc tests

Author: Burak Yavuz <brkyvz@gmail.com>

Closes #15921 from brkyvz/py-watermark.
2016-11-21 17:24:02 -08:00
Dongjoon Hyun ddd02f50bb [SPARK-18517][SQL] DROP TABLE IF EXISTS should not warn for non-existing tables
## What changes were proposed in this pull request?

Currently, `DROP TABLE IF EXISTS` shows warning for non-existing tables. However, it had better be quiet for this case by definition of the command.

**BEFORE**
```scala
scala> sql("DROP TABLE IF EXISTS nonexist")
16/11/20 20:48:26 WARN DropTableCommand: org.apache.spark.sql.catalyst.analysis.NoSuchTableException: Table or view 'nonexist' not found in database 'default';
```

**AFTER**
```scala
scala> sql("DROP TABLE IF EXISTS nonexist")
res0: org.apache.spark.sql.DataFrame = []
```

## How was this patch tested?

Manual because this is related to the warning messages instead of exceptions.

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #15953 from dongjoon-hyun/SPARK-18517.
2016-11-21 16:14:59 -05:00
Dongjoon Hyun 07beb5d21c
[SPARK-18413][SQL] Add maxConnections JDBCOption
## What changes were proposed in this pull request?

This PR adds a new JDBCOption `maxConnections` which means the maximum number of simultaneous JDBC connections allowed. This option applies only to writing with coalesce operation if needed. It defaults to the number of partitions of RDD. Previously, SQL users cannot cannot control this while Scala/Java/Python users can use `coalesce` (or `repartition`) API.

**Reported Scenario**

For the following cases, the number of connections becomes 200 and database cannot handle all of them.

```sql
CREATE OR REPLACE TEMPORARY VIEW resultview
USING org.apache.spark.sql.jdbc
OPTIONS (
  url "jdbc:oracle:thin:10.129.10.111:1521:BKDB",
  dbtable "result",
  user "HIVE",
  password "HIVE"
);
-- set spark.sql.shuffle.partitions=200
INSERT OVERWRITE TABLE resultview SELECT g, count(1) AS COUNT FROM tnet.DT_LIVE_INFO GROUP BY g
```

## How was this patch tested?

Manual. Do the followings and see Spark UI.

**Step 1 (MySQL)**
```
CREATE TABLE t1 (a INT);
CREATE TABLE data (a INT);
INSERT INTO data VALUES (1);
INSERT INTO data VALUES (2);
INSERT INTO data VALUES (3);
```

**Step 2 (Spark)**
```scala
SPARK_HOME=$PWD bin/spark-shell --driver-memory 4G --driver-class-path mysql-connector-java-5.1.40-bin.jar
scala> sql("SET spark.sql.shuffle.partitions=3")
scala> sql("CREATE OR REPLACE TEMPORARY VIEW data USING org.apache.spark.sql.jdbc OPTIONS (url 'jdbc:mysql://localhost:3306/t', dbtable 'data', user 'root', password '')")
scala> sql("CREATE OR REPLACE TEMPORARY VIEW t1 USING org.apache.spark.sql.jdbc OPTIONS (url 'jdbc:mysql://localhost:3306/t', dbtable 't1', user 'root', password '', maxConnections '1')")
scala> sql("INSERT OVERWRITE TABLE t1 SELECT a FROM data GROUP BY a")
scala> sql("CREATE OR REPLACE TEMPORARY VIEW t1 USING org.apache.spark.sql.jdbc OPTIONS (url 'jdbc:mysql://localhost:3306/t', dbtable 't1', user 'root', password '', maxConnections '2')")
scala> sql("INSERT OVERWRITE TABLE t1 SELECT a FROM data GROUP BY a")
scala> sql("CREATE OR REPLACE TEMPORARY VIEW t1 USING org.apache.spark.sql.jdbc OPTIONS (url 'jdbc:mysql://localhost:3306/t', dbtable 't1', user 'root', password '', maxConnections '3')")
scala> sql("INSERT OVERWRITE TABLE t1 SELECT a FROM data GROUP BY a")
scala> sql("CREATE OR REPLACE TEMPORARY VIEW t1 USING org.apache.spark.sql.jdbc OPTIONS (url 'jdbc:mysql://localhost:3306/t', dbtable 't1', user 'root', password '', maxConnections '4')")
scala> sql("INSERT OVERWRITE TABLE t1 SELECT a FROM data GROUP BY a")
```

![maxconnections](https://cloud.githubusercontent.com/assets/9700541/20287987/ed8409c2-aa84-11e6-8aab-ae28e63fe54d.png)

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #15868 from dongjoon-hyun/SPARK-18413.
2016-11-21 13:57:36 +00:00
Reynold Xin b625a36ebc [HOTFIX][SQL] Fix DDLSuite failure. 2016-11-20 20:00:59 -08:00
Herman van Hovell 7ca7a63524 [SPARK-15214][SQL] Code-generation for Generate
## What changes were proposed in this pull request?

This PR adds code generation to `Generate`. It supports two code paths:
- General `TraversableOnce` based iteration. This used for regular `Generator` (code generation supporting) expressions. This code path expects the expression to return a `TraversableOnce[InternalRow]` and it will iterate over the returned collection. This PR adds code generation for the `stack` generator.
- Specialized `ArrayData/MapData` based iteration. This is used for the `explode`, `posexplode` & `inline` functions and operates directly on the `ArrayData`/`MapData` result that the child of the generator returns.

### Benchmarks
I have added some benchmarks and it seems we can create a nice speedup for explode:
#### Environment
```
Java HotSpot(TM) 64-Bit Server VM 1.8.0_92-b14 on Mac OS X 10.11.6
Intel(R) Core(TM) i7-4980HQ CPU  2.80GHz
```
#### Explode Array
##### Before
```
generate explode array:                  Best/Avg Time(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------
generate explode array wholestage off         7377 / 7607          2.3         439.7       1.0X
generate explode array wholestage on          6055 / 6086          2.8         360.9       1.2X
```
##### After
```
generate explode array:                  Best/Avg Time(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------
generate explode array wholestage off         7432 / 7696          2.3         443.0       1.0X
generate explode array wholestage on           631 /  646         26.6          37.6      11.8X
```
#### Explode Map
##### Before
```
generate explode map:                    Best/Avg Time(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------
generate explode map wholestage off         12792 / 12848          1.3         762.5       1.0X
generate explode map wholestage on          11181 / 11237          1.5         666.5       1.1X
```
##### After
```
generate explode map:                    Best/Avg Time(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------
generate explode map wholestage off         10949 / 10972          1.5         652.6       1.0X
generate explode map wholestage on             870 /  913         19.3          51.9      12.6X
```
#### Posexplode
##### Before
```
generate posexplode array:               Best/Avg Time(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------
generate posexplode array wholestage off      7547 / 7580          2.2         449.8       1.0X
generate posexplode array wholestage on       5786 / 5838          2.9         344.9       1.3X
```
##### After
```
generate posexplode array:               Best/Avg Time(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------
generate posexplode array wholestage off      7535 / 7548          2.2         449.1       1.0X
generate posexplode array wholestage on        620 /  624         27.1          37.0      12.1X
```
#### Inline
##### Before
```
generate inline array:                   Best/Avg Time(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------
generate inline array wholestage off          6935 / 6978          2.4         413.3       1.0X
generate inline array wholestage on           6360 / 6400          2.6         379.1       1.1X
```
##### After
```
generate inline array:                   Best/Avg Time(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------
generate inline array wholestage off          6940 / 6966          2.4         413.6       1.0X
generate inline array wholestage on           1002 / 1012         16.7          59.7       6.9X
```
#### Stack
##### Before
```
generate stack:                          Best/Avg Time(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------
generate stack wholestage off               12980 / 13104          1.3         773.7       1.0X
generate stack wholestage on                11566 / 11580          1.5         689.4       1.1X
```
##### After
```
generate stack:                          Best/Avg Time(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------
generate stack wholestage off               12875 / 12949          1.3         767.4       1.0X
generate stack wholestage on                   840 /  845         20.0          50.0      15.3X
```
## How was this patch tested?

Existing tests.

Author: Herman van Hovell <hvanhovell@databricks.com>
Author: Herman van Hovell <hvanhovell@questtec.nl>

Closes #13065 from hvanhovell/SPARK-15214.
2016-11-19 23:55:09 -08:00
Sean Owen ded5fefb6f
[SPARK-18448][CORE] Fix @since 2.1.0 on new SparkSession.close() method
## What changes were proposed in this pull request?

Fix since 2.1.0 on new SparkSession.close() method. I goofed in https://github.com/apache/spark/pull/15932 because it was back-ported to 2.1 instead of just master as originally planned.

Author: Sean Owen <sowen@cloudera.com>

Closes #15938 from srowen/SPARK-18448.2.
2016-11-19 13:48:56 +00:00
hyukjinkwon d5b1d5fc80
[SPARK-18445][BUILD][DOCS] Fix the markdown for Note:/NOTE:/Note that/'''Note:''' across Scala/Java API documentation
## What changes were proposed in this pull request?

It seems in Scala/Java,

- `Note:`
- `NOTE:`
- `Note that`
- `'''Note:'''`
- `note`

This PR proposes to fix those to `note` to be consistent.

**Before**

- Scala
  ![2016-11-17 6 16 39](https://cloud.githubusercontent.com/assets/6477701/20383180/1a7aed8c-acf2-11e6-9611-5eaf6d52c2e0.png)

- Java
  ![2016-11-17 6 14 41](https://cloud.githubusercontent.com/assets/6477701/20383096/c8ffc680-acf1-11e6-914a-33460bf1401d.png)

**After**

- Scala
  ![2016-11-17 6 16 44](https://cloud.githubusercontent.com/assets/6477701/20383167/09940490-acf2-11e6-937a-0d5e1dc2cadf.png)

- Java
  ![2016-11-17 6 13 39](https://cloud.githubusercontent.com/assets/6477701/20383132/e7c2a57e-acf1-11e6-9c47-b849674d4d88.png)

## How was this patch tested?

The notes were found via

```bash
grep -r "NOTE: " . | \ # Note:|NOTE:|Note that|'''Note:'''
grep -v "// NOTE: " | \  # starting with // does not appear in API documentation.
grep -E '.scala|.java' | \ # java/scala files
grep -v Suite | \ # exclude tests
grep -v Test | \ # exclude tests
grep -e 'org.apache.spark.api.java' \ # packages appear in API documenation
-e 'org.apache.spark.api.java.function' \ # note that this is a regular expression. So actual matches were mostly `org/apache/spark/api/java/functions ...`
-e 'org.apache.spark.api.r' \
...
```

```bash
grep -r "Note that " . | \ # Note:|NOTE:|Note that|'''Note:'''
grep -v "// Note that " | \  # starting with // does not appear in API documentation.
grep -E '.scala|.java' | \ # java/scala files
grep -v Suite | \ # exclude tests
grep -v Test | \ # exclude tests
grep -e 'org.apache.spark.api.java' \ # packages appear in API documenation
-e 'org.apache.spark.api.java.function' \
-e 'org.apache.spark.api.r' \
...
```

```bash
grep -r "Note: " . | \ # Note:|NOTE:|Note that|'''Note:'''
grep -v "// Note: " | \  # starting with // does not appear in API documentation.
grep -E '.scala|.java' | \ # java/scala files
grep -v Suite | \ # exclude tests
grep -v Test | \ # exclude tests
grep -e 'org.apache.spark.api.java' \ # packages appear in API documenation
-e 'org.apache.spark.api.java.function' \
-e 'org.apache.spark.api.r' \
...
```

```bash
grep -r "'''Note:'''" . | \ # Note:|NOTE:|Note that|'''Note:'''
grep -v "// '''Note:''' " | \  # starting with // does not appear in API documentation.
grep -E '.scala|.java' | \ # java/scala files
grep -v Suite | \ # exclude tests
grep -v Test | \ # exclude tests
grep -e 'org.apache.spark.api.java' \ # packages appear in API documenation
-e 'org.apache.spark.api.java.function' \
-e 'org.apache.spark.api.r' \
...
```

And then fixed one by one comparing with API documentation/access modifiers.

After that, manually tested via `jekyll build`.

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #15889 from HyukjinKwon/SPARK-18437.
2016-11-19 11:24:15 +00:00
Sean Owen db9fb9baac
[SPARK-18448][CORE] SparkSession should implement java.lang.AutoCloseable like JavaSparkContext
## What changes were proposed in this pull request?

Just adds `close()` + `Closeable` as a synonym for `stop()`. This makes it usable in Java in try-with-resources, as suggested by ash211  (`Closeable` extends `AutoCloseable` BTW)

## How was this patch tested?

Existing tests

Author: Sean Owen <sowen@cloudera.com>

Closes #15932 from srowen/SPARK-18448.
2016-11-19 09:00:11 +00:00
Shixiong Zhu 2a40de408b [SPARK-18497][SS] Make ForeachSink support watermark
## What changes were proposed in this pull request?

The issue in ForeachSink is the new created DataSet still uses the old QueryExecution. When `foreachPartition` is called, `QueryExecution.toString` will be called and then fail because it doesn't know how to plan EventTimeWatermark.

This PR just replaces the QueryExecution with IncrementalExecution to fix the issue.

## How was this patch tested?

`test("foreach with watermark")`.

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #15934 from zsxwing/SPARK-18497.
2016-11-18 16:34:38 -08:00
Reynold Xin 6f7ff75091 [SPARK-18505][SQL] Simplify AnalyzeColumnCommand
## What changes were proposed in this pull request?
I'm spending more time at the design & code level for cost-based optimizer now, and have found a number of issues related to maintainability and compatibility that I will like to address.

This is a small pull request to clean up AnalyzeColumnCommand:

1. Removed warning on duplicated columns. Warnings in log messages are useless since most users that run SQL don't see them.
2. Removed the nested updateStats function, by just inlining the function.
3. Renamed a few functions to better reflect what they do.
4. Removed the factory apply method for ColumnStatStruct. It is a bad pattern to use a apply method that returns an instantiation of a class that is not of the same type (ColumnStatStruct.apply used to return CreateNamedStruct).
5. Renamed ColumnStatStruct to just AnalyzeColumnCommand.
6. Added more documentation explaining some of the non-obvious return types and code blocks.

In follow-up pull requests, I'd like to address the following:

1. Get rid of the Map[String, ColumnStat] map, since internally we should be using Attribute to reference columns, rather than strings.
2. Decouple the fields exposed by ColumnStat and internals of Spark SQL's execution path. Currently the two are coupled because ColumnStat takes in an InternalRow.
3. Correctness: Remove code path that stores statistics in the catalog using the base64 encoding of the UnsafeRow format, which is not stable across Spark versions.
4. Clearly document the data representation stored in the catalog for statistics.

## How was this patch tested?
Affected test cases have been updated.

Author: Reynold Xin <rxin@databricks.com>

Closes #15933 from rxin/SPARK-18505.
2016-11-18 16:34:11 -08:00
Shixiong Zhu e5f5c29e02 [SPARK-18477][SS] Enable interrupts for HDFS in HDFSMetadataLog
## What changes were proposed in this pull request?

HDFS `write` may just hang until timeout if some network error happens. It's better to enable interrupts to allow stopping the query fast on HDFS.

This PR just changes the logic to only disable interrupts for local file system, as HADOOP-10622 only happens for local file system.

## How was this patch tested?

Jenkins

Author: Shixiong Zhu <shixiong@databricks.com>

Closes #15911 from zsxwing/interrupt-on-dfs.
2016-11-18 16:13:02 -08:00
Tyson Condie 51baca2219 [SPARK-18187][SQL] CompactibleFileStreamLog should not use "compactInterval" direcly with user setting.
## What changes were proposed in this pull request?
CompactibleFileStreamLog relys on "compactInterval" to detect a compaction batch. If the "compactInterval" is reset by user, CompactibleFileStreamLog will return wrong answer, resulting data loss. This PR procides a way to check the validity of 'compactInterval', and calculate an appropriate value.

## How was this patch tested?
When restart a stream, we change the 'spark.sql.streaming.fileSource.log.compactInterval' different with the former one.

The primary solution to this issue was given by uncleGen
Added extensions include an additional metadata field in OffsetSeq and CompactibleFileStreamLog APIs. zsxwing

Author: Tyson Condie <tcondie@gmail.com>
Author: genmao.ygm <genmao.ygm@genmaoygmdeMacBook-Air.local>

Closes #15852 from tcondie/spark-18187.
2016-11-18 11:11:24 -08:00
Josh Rosen d9dd979d17 [SPARK-18462] Fix ClassCastException in SparkListenerDriverAccumUpdates event
## What changes were proposed in this pull request?

This patch fixes a `ClassCastException: java.lang.Integer cannot be cast to java.lang.Long` error which could occur in the HistoryServer while trying to process a deserialized `SparkListenerDriverAccumUpdates` event.

The problem stems from how `jackson-module-scala` handles primitive type parameters (see https://github.com/FasterXML/jackson-module-scala/wiki/FAQ#deserializing-optionint-and-other-primitive-challenges for more details). This was causing a problem where our code expected a field to be deserialized as a `(Long, Long)` tuple but we got an `(Int, Int)` tuple instead.

This patch hacks around this issue by registering a custom `Converter` with Jackson in order to deserialize the tuples as `(Object, Object)` and perform the appropriate casting.

## How was this patch tested?

New regression tests in `SQLListenerSuite`.

Author: Josh Rosen <joshrosen@databricks.com>

Closes #15922 from JoshRosen/SPARK-18462.
2016-11-17 18:45:15 -08:00
root b0aa1aa1af
[SPARK-18490][SQL] duplication nodename extrainfo for ShuffleExchange
## What changes were proposed in this pull request?

   In ShuffleExchange, the nodename's extraInfo are the same when exchangeCoordinator.isEstimated
 is true or false.

Merge the two situation in the PR.

Author: root <root@iZbp1gsnrlfzjxh82cz80vZ.(none)>

Closes #15920 from windpiger/DupNodeNameShuffleExchange.
2016-11-17 17:04:19 +00:00
anabranch 49b6f456ac
[SPARK-18365][DOCS] Improve Sample Method Documentation
## What changes were proposed in this pull request?

I found the documentation for the sample method to be confusing, this adds more clarification across all languages.

- [x] Scala
- [x] Python
- [x] R
- [x] RDD Scala
- [ ] RDD Python with SEED
- [X] RDD Java
- [x] RDD Java with SEED
- [x] RDD Python

## How was this patch tested?

NA

Please review https://cwiki.apache.org/confluence/display/SPARK/Contributing+to+Spark before opening a pull request.

Author: anabranch <wac.chambers@gmail.com>
Author: Bill Chambers <bill@databricks.com>

Closes #15815 from anabranch/SPARK-18365.
2016-11-17 11:34:55 +00:00
Wenchen Fan 07b3f045cd [SPARK-18464][SQL] support old table which doesn't store schema in metastore
## What changes were proposed in this pull request?

Before Spark 2.1, users can create an external data source table without schema, and we will infer the table schema at runtime. In Spark 2.1, we decided to infer the schema when the table was created, so that we don't need to infer it again and again at runtime.

This is a good improvement, but we should still respect and support old tables which doesn't store table schema in metastore.

## How was this patch tested?

regression test.

Author: Wenchen Fan <wenchen@databricks.com>

Closes #15900 from cloud-fan/hive-catalog.
2016-11-17 00:00:38 -08:00
Tathagata Das 0048ce7ce6 [SPARK-18459][SPARK-18460][STRUCTUREDSTREAMING] Rename triggerId to batchId and add triggerDetails to json in StreamingQueryStatus
## What changes were proposed in this pull request?

SPARK-18459: triggerId seems like a number that should be increasing with each trigger, whether or not there is data in it. However, actually, triggerId increases only where there is a batch of data in a trigger. So its better to rename it to batchId.

SPARK-18460: triggerDetails was missing from json representation. Fixed it.

## How was this patch tested?
Updated existing unit tests.

Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #15895 from tdas/SPARK-18459.
2016-11-16 10:00:59 -08:00
gatorsmile 608ecc512b [SPARK-18415][SQL] Weird Plan Output when CTE used in RunnableCommand
### What changes were proposed in this pull request?
Currently, when CTE is used in RunnableCommand, the Analyzer does not replace the logical node `With`. The child plan of RunnableCommand is not resolved. Thus, the output of the `With` plan node looks very confusing.
For example,
```
sql(
  """
    |CREATE VIEW cte_view AS
    |WITH w AS (SELECT 1 AS n), cte1 (select 2), cte2 as (select 3)
    |SELECT n FROM w
  """.stripMargin).explain()
```
The output is like
```
ExecutedCommand
   +- CreateViewCommand `cte_view`, WITH w AS (SELECT 1 AS n), cte1 (select 2), cte2 as (select 3)
SELECT n FROM w, false, false, PersistedView
         +- 'With [(w,SubqueryAlias w
+- Project [1 AS n#16]
   +- OneRowRelation$
), (cte1,'SubqueryAlias cte1
+- 'Project [unresolvedalias(2, None)]
   +- OneRowRelation$
), (cte2,'SubqueryAlias cte2
+- 'Project [unresolvedalias(3, None)]
   +- OneRowRelation$
)]
            +- 'Project ['n]
               +- 'UnresolvedRelation `w`
```
After the fix, the output is as shown below.
```
ExecutedCommand
   +- CreateViewCommand `cte_view`, WITH w AS (SELECT 1 AS n), cte1 (select 2), cte2 as (select 3)
SELECT n FROM w, false, false, PersistedView
         +- CTE [w, cte1, cte2]
            :  :- SubqueryAlias w
            :  :  +- Project [1 AS n#16]
            :  :     +- OneRowRelation$
            :  :- 'SubqueryAlias cte1
            :  :  +- 'Project [unresolvedalias(2, None)]
            :  :     +- OneRowRelation$
            :  +- 'SubqueryAlias cte2
            :     +- 'Project [unresolvedalias(3, None)]
            :        +- OneRowRelation$
            +- 'Project ['n]
               +- 'UnresolvedRelation `w`
```

BTW, this PR also fixes the output of the view type.

### How was this patch tested?
Manual

Author: gatorsmile <gatorsmile@gmail.com>

Closes #15854 from gatorsmile/cteName.
2016-11-16 08:25:15 -08:00
Dongjoon Hyun 74f5c2176d [SPARK-18433][SQL] Improve DataSource option keys to be more case-insensitive
## What changes were proposed in this pull request?

This PR aims to improve DataSource option keys to be more case-insensitive

DataSource partially use CaseInsensitiveMap in code-path. For example, the following fails to find url.

```scala
val df = spark.createDataFrame(sparkContext.parallelize(arr2x2), schema2)
df.write.format("jdbc")
    .option("UrL", url1)
    .option("dbtable", "TEST.SAVETEST")
    .options(properties.asScala)
    .save()
```

This PR makes DataSource options to use CaseInsensitiveMap internally and also makes DataSource to use CaseInsensitiveMap generally except `InMemoryFileIndex` and `InsertIntoHadoopFsRelationCommand`. We can not pass them CaseInsensitiveMap because they creates new case-sensitive HadoopConfs by calling newHadoopConfWithOptions(options) inside.

## How was this patch tested?

Pass the Jenkins test with newly added test cases.

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #15884 from dongjoon-hyun/SPARK-18433.
2016-11-16 17:12:18 +08:00
Wenchen Fan 4ac9759f80 [SPARK-18377][SQL] warehouse path should be a static conf
## What changes were proposed in this pull request?

it's weird that every session can set its own warehouse path at runtime, we should forbid it and make it a static conf.

## How was this patch tested?

existing tests.

Author: Wenchen Fan <wenchen@databricks.com>

Closes #15825 from cloud-fan/warehouse.
2016-11-15 20:24:36 -08:00
Dongjoon Hyun 3ce057d001 [SPARK-17732][SQL] ALTER TABLE DROP PARTITION should support comparators
## What changes were proposed in this pull request?

This PR aims to support `comparators`, e.g. '<', '<=', '>', '>=', again in Apache Spark 2.0 for backward compatibility.

**Spark 1.6**

``` scala
scala> sql("CREATE TABLE sales(id INT) PARTITIONED BY (country STRING, quarter STRING)")
res0: org.apache.spark.sql.DataFrame = [result: string]

scala> sql("ALTER TABLE sales DROP PARTITION (country < 'KR')")
res1: org.apache.spark.sql.DataFrame = [result: string]
```

**Spark 2.0**

``` scala
scala> sql("CREATE TABLE sales(id INT) PARTITIONED BY (country STRING, quarter STRING)")
res0: org.apache.spark.sql.DataFrame = []

scala> sql("ALTER TABLE sales DROP PARTITION (country < 'KR')")
org.apache.spark.sql.catalyst.parser.ParseException:
mismatched input '<' expecting {')', ','}(line 1, pos 42)
```

After this PR, it's supported.

## How was this patch tested?

Pass the Jenkins test with a newly added testcase.

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #15704 from dongjoon-hyun/SPARK-17732-2.
2016-11-15 15:59:04 -08:00
Tathagata Das 1ae4652b7e [SPARK-18440][STRUCTURED STREAMING] Pass correct query execution to FileFormatWriter
## What changes were proposed in this pull request?

SPARK-18012 refactored the file write path in FileStreamSink using FileFormatWriter which always uses the default non-streaming QueryExecution to perform the writes. This is wrong for FileStreamSink, because the streaming QueryExecution (i.e. IncrementalExecution) should be used for correctly incrementalizing aggregation. The addition of watermarks in SPARK-18124, file stream sink should logically supports aggregation + watermark + append mode. But actually it fails with
```
16:23:07.389 ERROR org.apache.spark.sql.execution.streaming.StreamExecution: Query query-0 terminated with error
java.lang.AssertionError: assertion failed: No plan for EventTimeWatermark timestamp#7: timestamp, interval 10 seconds
+- LocalRelation [timestamp#7]

	at scala.Predef$.assert(Predef.scala:170)
	at org.apache.spark.sql.catalyst.planning.QueryPlanner.plan(QueryPlanner.scala:92)
	at org.apache.spark.sql.catalyst.planning.QueryPlanner$$anonfun$2$$anonfun$apply$2.apply(QueryPlanner.scala:77)
	at org.apache.spark.sql.catalyst.planning.QueryPlanner$$anonfun$2$$anonfun$apply$2.apply(QueryPlanner.scala:74)
	at scala.collection.TraversableOnce$$anonfun$foldLeft$1.apply(TraversableOnce.scala:157)
	at scala.collection.TraversableOnce$$anonfun$foldLeft$1.apply(TraversableOnce.scala:157)
	at scala.collection.Iterator$class.foreach(Iterator.scala:893)
	at scala.collection.AbstractIterator.foreach(Iterator.scala:1336)
	at scala.collection.TraversableOnce$class.foldLeft(TraversableOnce.scala:157)
	at scala.collection.AbstractIterator.foldLeft(Iterator.scala:1336)
	at org.apache.spark.sql.catalyst.planning.QueryPlanner$$anonfun$2.apply(QueryPlanner.scala:74)
	at org.apache.spark.sql.catalyst.planning.QueryPlanner$$anonfun$2.apply(QueryPlanner.scala:66)
	at scala.collection.Iterator$$anon$12.nextCur(Iterator.scala:434)
	at scala.collection.Iterator$$anon$12.hasNext(Iterator.scala:440)
	at org.apache.spark.sql.catalyst.planning.QueryPlanner.plan(QueryPlanner.scala:92)
	at org.apache.spark.sql.catalyst.planning.QueryPlanner$$anonfun$2$$anonfun$apply$2.apply(QueryPlanner.scala:77)
	at org.apache.spark.sql.catalyst.planning.QueryPlanner$$anonfun$2$$anonfun$apply$2.apply(QueryPlanner.scala:74)
```

This PR fixes it by passing the correct query execution.

## How was this patch tested?
New unit test

Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #15885 from tdas/SPARK-18440.
2016-11-15 15:12:30 -08:00
Burak Yavuz 2afdaa9805 [SPARK-18337] Complete mode memory sinks should be able to recover from checkpoints
## What changes were proposed in this pull request?

It would be nice if memory sinks can also recover from checkpoints. For correctness reasons, the only time we should support it is in `Complete` OutputMode. We can support this in CompleteMode, because the output of the StateStore is already persisted in the checkpoint directory.

## How was this patch tested?

Unit test

Author: Burak Yavuz <brkyvz@gmail.com>

Closes #15801 from brkyvz/mem-stream.
2016-11-15 13:09:29 -08:00
genmao.ygm 745ab8bc50 [SPARK-18379][SQL] Make the parallelism of parallelPartitionDiscovery configurable.
## What changes were proposed in this pull request?

The largest parallelism in PartitioningAwareFileIndex #listLeafFilesInParallel() is 10000 in hard code. We may need to make this number configurable. And in PR, I reduce it to 100.

## How was this patch tested?

Existing ut.

Author: genmao.ygm <genmao.ygm@genmaoygmdeMacBook-Air.local>
Author: dylon <hustyugm@gmail.com>

Closes #15829 from uncleGen/SPARK-18379.
2016-11-15 10:32:43 -08:00
Herman van Hovell f14ae4900a [SPARK-18300][SQL] Do not apply foldable propagation with expand as a child.
## What changes were proposed in this pull request?
The `FoldablePropagation` optimizer rule, pulls foldable values out from under an `Expand`. This breaks the `Expand` in two ways:

- It rewrites the output attributes of the `Expand`. We explicitly define output attributes for `Expand`, these are (unfortunately) considered as part of the expressions of the `Expand` and can be rewritten.
- Expand can actually change the column (it will typically re-use the attributes or the underlying plan). This means that we cannot safely propagate the expressions from under an `Expand`.

This PR fixes this and (hopefully) other issues by explicitly whitelisting allowed operators.

## How was this patch tested?
Added tests to `FoldablePropagationSuite` and to `SQLQueryTestSuite`.

Author: Herman van Hovell <hvanhovell@databricks.com>

Closes #15857 from hvanhovell/SPARK-18300.
2016-11-15 06:59:25 -08:00
gatorsmile 86430cc4e8 [SPARK-18430][SQL] Fixed Exception Messages when Hitting an Invocation Exception of Function Lookup
### What changes were proposed in this pull request?
When the exception is an invocation exception during function lookup, we return a useless/confusing error message:

For example,
```Scala
df.selectExpr("concat_ws()")
```
Below is the error message we got:
```
null; line 1 pos 0
org.apache.spark.sql.AnalysisException: null; line 1 pos 0
```

To get the meaningful error message, we need to get the cause. The fix is exactly the same as what we did in https://github.com/apache/spark/pull/12136. After the fix, the message we got is the exception issued in the constuctor of function implementation:
```
requirement failed: concat_ws requires at least one argument.; line 1 pos 0
org.apache.spark.sql.AnalysisException: requirement failed: concat_ws requires at least one argument.; line 1 pos 0
```

### How was this patch tested?
Added test cases.

Author: gatorsmile <gatorsmile@gmail.com>

Closes #15878 from gatorsmile/functionNotFound.
2016-11-14 21:21:34 -08:00
Michael Armbrust c07187823a [SPARK-18124] Observed delay based Event Time Watermarks
This PR adds a new method `withWatermark` to the `Dataset` API, which can be used specify an _event time watermark_.  An event time watermark allows the streaming engine to reason about the point in time after which we no longer expect to see late data.  This PR also has augmented `StreamExecution` to use this watermark for several purposes:
  - To know when a given time window aggregation is finalized and thus results can be emitted when using output modes that do not allow updates (e.g. `Append` mode).
  - To minimize the amount of state that we need to keep for on-going aggregations, by evicting state for groups that are no longer expected to change.  Although, we do still maintain all state if the query requires (i.e. if the event time is not present in the `groupBy` or when running in `Complete` mode).

An example that emits windowed counts of records, waiting up to 5 minutes for late data to arrive.
```scala
df.withWatermark("eventTime", "5 minutes")
  .groupBy(window($"eventTime", "1 minute") as 'window)
  .count()
  .writeStream
  .format("console")
  .mode("append") // In append mode, we only output finalized aggregations.
  .start()
```

### Calculating the watermark.
The current event time is computed by looking at the `MAX(eventTime)` seen this epoch across all of the partitions in the query minus some user defined _delayThreshold_.  An additional constraint is that the watermark must increase monotonically.

Note that since we must coordinate this value across partitions occasionally, the actual watermark used is only guaranteed to be at least `delay` behind the actual event time.  In some cases we may still process records that arrive more than delay late.

This mechanism was chosen for the initial implementation over processing time for two reasons:
  - it is robust to downtime that could affect processing delay
  - it does not require syncing of time or timezones between the producer and the processing engine.

### Other notable implementation details
 - A new trigger metric `eventTimeWatermark` outputs the current value of the watermark.
 - We mark the event time column in the `Attribute` metadata using the key `spark.watermarkDelay`.  This allows downstream operations to know which column holds the event time.  Operations like `window` propagate this metadata.
 - `explain()` marks the watermark with a suffix of `-T${delayMs}` to ease debugging of how this information is propagated.
 - Currently, we don't filter out late records, but instead rely on the state store to avoid emitting records that are both added and filtered in the same epoch.

### Remaining in this PR
 - [ ] The test for recovery is currently failing as we don't record the watermark used in the offset log.  We will need to do so to ensure determinism, but this is deferred until #15626 is merged.

### Other follow-ups
There are some natural additional features that we should consider for future work:
 - Ability to write records that arrive too late to some external store in case any out-of-band remediation is required.
 - `Update` mode so you can get partial results before a group is evicted.
 - Other mechanisms for calculating the watermark.  In particular a watermark based on quantiles would be more robust to outliers.

Author: Michael Armbrust <michael@databricks.com>

Closes #15702 from marmbrus/watermarks.
2016-11-14 16:46:26 -08:00
Nattavut Sutyanyong bd85603ba5 [SPARK-17348][SQL] Incorrect results from subquery transformation
## What changes were proposed in this pull request?

Return an Analysis exception when there is a correlated non-equality predicate in a subquery and the correlated column from the outer reference is not from the immediate parent operator of the subquery. This PR prevents incorrect results from subquery transformation in such case.

Test cases, both positive and negative tests, are added.

## How was this patch tested?

sql/test, catalyst/test, hive/test, and scenarios that will produce incorrect results without this PR and product correct results when subquery transformation does happen.

Author: Nattavut Sutyanyong <nsy.can@gmail.com>

Closes #15763 from nsyca/spark-17348.
2016-11-14 20:59:15 +01:00
Tathagata Das bdfe60ac92 [SPARK-18416][STRUCTURED STREAMING] Fixed temp file leak in state store
## What changes were proposed in this pull request?

StateStore.get() causes temporary files to be created immediately, even if the store is not used to make updates for new version. The temp file is not closed as store.commit() is not called in those cases, thus keeping the output stream to temp file open forever.

This PR fixes it by opening the temp file only when there are updates being made.

## How was this patch tested?

New unit test

Author: Tathagata Das <tathagata.das1565@gmail.com>

Closes #15859 from tdas/SPARK-18416.
2016-11-14 10:03:01 -08:00
Dongjoon Hyun d42bb7cc4e [SPARK-17982][SQL] SQLBuilder should wrap the generated SQL with parenthesis for LIMIT
## What changes were proposed in this pull request?

Currently, `SQLBuilder` handles `LIMIT` by always adding `LIMIT` at the end of the generated subSQL. It makes `RuntimeException`s like the following. This PR adds a parenthesis always except `SubqueryAlias` is used together with `LIMIT`.

**Before**

``` scala
scala> sql("CREATE TABLE tbl(id INT)")
scala> sql("CREATE VIEW v1(id2) AS SELECT id FROM tbl LIMIT 2")
java.lang.RuntimeException: Failed to analyze the canonicalized SQL: ...
```

**After**

``` scala
scala> sql("CREATE TABLE tbl(id INT)")
scala> sql("CREATE VIEW v1(id2) AS SELECT id FROM tbl LIMIT 2")
scala> sql("SELECT id2 FROM v1")
res4: org.apache.spark.sql.DataFrame = [id2: int]
```

**Fixed cases in this PR**

The following two cases are the detail query plans having problematic SQL generations.

1. `SELECT * FROM (SELECT id FROM tbl LIMIT 2)`

    Please note that **FROM SELECT** part of the generated SQL in the below. When we don't use '()' for limit, this fails.

```scala
# Original logical plan:
Project [id#1]
+- GlobalLimit 2
   +- LocalLimit 2
      +- Project [id#1]
         +- MetastoreRelation default, tbl

# Canonicalized logical plan:
Project [gen_attr_0#1 AS id#4]
+- SubqueryAlias tbl
   +- Project [gen_attr_0#1]
      +- GlobalLimit 2
         +- LocalLimit 2
            +- Project [gen_attr_0#1]
               +- SubqueryAlias gen_subquery_0
                  +- Project [id#1 AS gen_attr_0#1]
                     +- SQLTable default, tbl, [id#1]

# Generated SQL:
SELECT `gen_attr_0` AS `id` FROM (SELECT `gen_attr_0` FROM SELECT `gen_attr_0` FROM (SELECT `id` AS `gen_attr_0` FROM `default`.`tbl`) AS gen_subquery_0 LIMIT 2) AS tbl
```

2. `SELECT * FROM (SELECT id FROM tbl TABLESAMPLE (2 ROWS))`

    Please note that **((~~~) AS gen_subquery_0 LIMIT 2)** in the below. When we use '()' for limit on `SubqueryAlias`, this fails.

```scala
# Original logical plan:
Project [id#1]
+- Project [id#1]
   +- GlobalLimit 2
      +- LocalLimit 2
         +- MetastoreRelation default, tbl

# Canonicalized logical plan:
Project [gen_attr_0#1 AS id#4]
+- SubqueryAlias tbl
   +- Project [gen_attr_0#1]
      +- GlobalLimit 2
         +- LocalLimit 2
            +- SubqueryAlias gen_subquery_0
               +- Project [id#1 AS gen_attr_0#1]
                  +- SQLTable default, tbl, [id#1]

# Generated SQL:
SELECT `gen_attr_0` AS `id` FROM (SELECT `gen_attr_0` FROM ((SELECT `id` AS `gen_attr_0` FROM `default`.`tbl`) AS gen_subquery_0 LIMIT 2)) AS tbl
```

## How was this patch tested?

Pass the Jenkins test with a newly added test case.

Author: Dongjoon Hyun <dongjoon@apache.org>

Closes #15546 from dongjoon-hyun/SPARK-17982.
2016-11-11 13:28:18 -08:00
Eric Liang a3356343cb [SPARK-18185] Fix all forms of INSERT / OVERWRITE TABLE for Datasource tables
## What changes were proposed in this pull request?

As of current 2.1, INSERT OVERWRITE with dynamic partitions against a Datasource table will overwrite the entire table instead of only the partitions matching the static keys, as in Hive. It also doesn't respect custom partition locations.

This PR adds support for all these operations to Datasource tables managed by the Hive metastore. It is implemented as follows
- During planning time, the full set of partitions affected by an INSERT or OVERWRITE command is read from the Hive metastore.
- The planner identifies any partitions with custom locations and includes this in the write task metadata.
- FileFormatWriter tasks refer to this custom locations map when determining where to write for dynamic partition output.
- When the write job finishes, the set of written partitions is compared against the initial set of matched partitions, and the Hive metastore is updated to reflect the newly added / removed partitions.

It was necessary to introduce a method for staging files with absolute output paths to `FileCommitProtocol`. These files are not handled by the Hadoop output committer but are moved to their final locations when the job commits.

The overwrite behavior of legacy Datasource tables is also changed: no longer will the entire table be overwritten if a partial partition spec is present.

cc cloud-fan yhuai

## How was this patch tested?

Unit tests, existing tests.

Author: Eric Liang <ekl@databricks.com>
Author: Wenchen Fan <wenchen@databricks.com>

Closes #15814 from ericl/sc-5027.
2016-11-10 17:00:43 -08:00
Wenchen Fan 2f7461f313 [SPARK-17990][SPARK-18302][SQL] correct several partition related behaviours of ExternalCatalog
## What changes were proposed in this pull request?

This PR corrects several partition related behaviors of `ExternalCatalog`:

1. default partition location should not always lower case the partition column names in path string(fix `HiveExternalCatalog`)
2. rename partition should not always lower case the partition column names in updated partition path string(fix `HiveExternalCatalog`)
3. rename partition should update the partition location only for managed table(fix `InMemoryCatalog`)
4. create partition with existing directory should be fine(fix `InMemoryCatalog`)
5. create partition with non-existing directory should create that directory(fix `InMemoryCatalog`)
6. drop partition from external table should not delete the directory(fix `InMemoryCatalog`)

## How was this patch tested?

new tests in `ExternalCatalogSuite`

Author: Wenchen Fan <wenchen@databricks.com>

Closes #15797 from cloud-fan/partition.
2016-11-10 13:42:48 -08:00
Michael Allman b533fa2b20 [SPARK-17993][SQL] Fix Parquet log output redirection
(Link to Jira issue: https://issues.apache.org/jira/browse/SPARK-17993)
## What changes were proposed in this pull request?

PR #14690 broke parquet log output redirection for converted partitioned Hive tables. For example, when querying parquet files written by Parquet-mr 1.6.0 Spark prints a torrent of (harmless) warning messages from the Parquet reader:

```
Oct 18, 2016 7:42:18 PM WARNING: org.apache.parquet.CorruptStatistics: Ignoring statistics because created_by could not be parsed (see PARQUET-251): parquet-mr version 1.6.0
org.apache.parquet.VersionParser$VersionParseException: Could not parse created_by: parquet-mr version 1.6.0 using format: (.+) version ((.*) )?\(build ?(.*)\)
    at org.apache.parquet.VersionParser.parse(VersionParser.java:112)
    at org.apache.parquet.CorruptStatistics.shouldIgnoreStatistics(CorruptStatistics.java:60)
    at org.apache.parquet.format.converter.ParquetMetadataConverter.fromParquetStatistics(ParquetMetadataConverter.java:263)
    at org.apache.parquet.hadoop.ParquetFileReader$Chunk.readAllPages(ParquetFileReader.java:583)
    at org.apache.parquet.hadoop.ParquetFileReader.readNextRowGroup(ParquetFileReader.java:513)
    at org.apache.spark.sql.execution.datasources.parquet.VectorizedParquetRecordReader.checkEndOfRowGroup(VectorizedParquetRecordReader.java:270)
    at org.apache.spark.sql.execution.datasources.parquet.VectorizedParquetRecordReader.nextBatch(VectorizedParquetRecordReader.java:225)
    at org.apache.spark.sql.execution.datasources.parquet.VectorizedParquetRecordReader.nextKeyValue(VectorizedParquetRecordReader.java:137)
    at org.apache.spark.sql.execution.datasources.RecordReaderIterator.hasNext(RecordReaderIterator.scala:39)
    at org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.hasNext(FileScanRDD.scala:102)
    at org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.nextIterator(FileScanRDD.scala:162)
    at org.apache.spark.sql.execution.datasources.FileScanRDD$$anon$1.hasNext(FileScanRDD.scala:102)
    at org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIterator.scan_nextBatch$(Unknown Source)
    at org.apache.spark.sql.catalyst.expressions.GeneratedClass$GeneratedIterator.processNext(Unknown Source)
    at org.apache.spark.sql.execution.BufferedRowIterator.hasNext(BufferedRowIterator.java:43)
    at org.apache.spark.sql.execution.WholeStageCodegenExec$$anonfun$8$$anon$1.hasNext(WholeStageCodegenExec.scala:372)
    at org.apache.spark.sql.execution.SparkPlan$$anonfun$2.apply(SparkPlan.scala:231)
    at org.apache.spark.sql.execution.SparkPlan$$anonfun$2.apply(SparkPlan.scala:225)
    at org.apache.spark.rdd.RDD$$anonfun$mapPartitionsInternal$1$$anonfun$apply$24.apply(RDD.scala:803)
    at org.apache.spark.rdd.RDD$$anonfun$mapPartitionsInternal$1$$anonfun$apply$24.apply(RDD.scala:803)
    at org.apache.spark.rdd.MapPartitionsRDD.compute(MapPartitionsRDD.scala:38)
    at org.apache.spark.rdd.RDD.computeOrReadCheckpoint(RDD.scala:319)
    at org.apache.spark.rdd.RDD.iterator(RDD.scala:283)
    at org.apache.spark.scheduler.ResultTask.runTask(ResultTask.scala:87)
    at org.apache.spark.scheduler.Task.run(Task.scala:99)
    at org.apache.spark.executor.Executor$TaskRunner.run(Executor.scala:282)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
```

This only happens during execution, not planning, and it doesn't matter what log level the `SparkContext` is set to. That's because Parquet (versions < 1.9) doesn't use slf4j for logging. Note, you can tell that log redirection is not working here because the log message format does not conform to the default Spark log message format.

This is a regression I noted as something we needed to fix as a follow up.

It appears that the problem arose because we removed the call to `inferSchema` during Hive table conversion. That call is what triggered the output redirection.

## How was this patch tested?

I tested this manually in four ways:
1. Executing `spark.sqlContext.range(10).selectExpr("id as a").write.mode("overwrite").parquet("test")`.
2. Executing `spark.read.format("parquet").load(legacyParquetFile).show` for a Parquet file `legacyParquetFile` written using Parquet-mr 1.6.0.
3. Executing `select * from legacy_parquet_table limit 1` for some unpartitioned Parquet-based Hive table written using Parquet-mr 1.6.0.
4. Executing `select * from legacy_partitioned_parquet_table where partcol=x limit 1` for some partitioned Parquet-based Hive table written using Parquet-mr 1.6.0.

I ran each test with a new instance of `spark-shell` or `spark-sql`.

Incidentally, I found that test case 3 was not a regression—redirection was not occurring in the master codebase prior to #14690.

I spent some time working on a unit test, but based on my experience working on this ticket I feel that automated testing here is far from feasible.

cc ericl dongjoon-hyun

Author: Michael Allman <michael@videoamp.com>

Closes #15538 from mallman/spark-17993-fix_parquet_log_redirection.
2016-11-10 13:41:13 -08:00
Wenchen Fan 6021c95a3a [SPARK-18147][SQL] do not fail for very complex aggregator result type
## What changes were proposed in this pull request?

~In `TypedAggregateExpression.evaluateExpression`, we may create `ReferenceToExpressions` with `CreateStruct`, and `CreateStruct` may generate too many codes and split them into several methods.  `ReferenceToExpressions` will replace `BoundReference` in `CreateStruct` with `LambdaVariable`, which can only be used as local variables and doesn't work if we split the generated code.~

It's already fixed by #15693 , this pr adds regression test

## How was this patch tested?

new test in `DatasetAggregatorSuite`

Author: Wenchen Fan <wenchen@databricks.com>

Closes #15807 from cloud-fan/typed-agg.
2016-11-10 13:03:59 +08:00
Tyson Condie 3f62e1b5d9 [SPARK-17829][SQL] Stable format for offset log
## What changes were proposed in this pull request?

Currently we use java serialization for the WAL that stores the offsets contained in each batch. This has two main issues:
It can break across spark releases (though this is not the only thing preventing us from upgrading a running query)
It is unnecessarily opaque to the user.
I'd propose we require offsets to provide a user readable serialization and use that instead. JSON is probably a good option.
## How was this patch tested?

Tests were added for KafkaSourceOffset in [KafkaSourceOffsetSuite](external/kafka-0-10-sql/src/test/scala/org/apache/spark/sql/kafka010/KafkaSourceOffsetSuite.scala) and for LongOffset in [OffsetSuite](sql/core/src/test/scala/org/apache/spark/sql/streaming/OffsetSuite.scala)

Please review https://cwiki.apache.org/confluence/display/SPARK/Contributing+to+Spark before opening a pull request.

zsxwing marmbrus

Author: Tyson Condie <tcondie@gmail.com>
Author: Tyson Condie <tcondie@clash.local>

Closes #15626 from tcondie/spark-8360.
2016-11-09 15:03:22 -08:00
Herman van Hovell d8b81f778a [SPARK-18370][SQL] Add table information to InsertIntoHadoopFsRelationCommand
## What changes were proposed in this pull request?
`InsertIntoHadoopFsRelationCommand` does not keep track if it inserts into a table and what table it inserts to. This can make debugging these statements problematic. This PR adds table information the `InsertIntoHadoopFsRelationCommand`. Explaining this SQL command `insert into prq select * from range(0, 100000)` now yields the following executed plan:
```
== Physical Plan ==
ExecutedCommand
   +- InsertIntoHadoopFsRelationCommand file:/dev/assembly/spark-warehouse/prq, ParquetFormat, <function1>, Map(serialization.format -> 1, path -> file:/dev/assembly/spark-warehouse/prq), Append, CatalogTable(
	Table: `default`.`prq`
	Owner: hvanhovell
	Created: Wed Nov 09 17:42:30 CET 2016
	Last Access: Thu Jan 01 01:00:00 CET 1970
	Type: MANAGED
	Schema: [StructField(id,LongType,true)]
	Provider: parquet
	Properties: [transient_lastDdlTime=1478709750]
	Storage(Location: file:/dev/assembly/spark-warehouse/prq, InputFormat: org.apache.hadoop.hive.ql.io.parquet.MapredParquetInputFormat, OutputFormat: org.apache.hadoop.hive.ql.io.parquet.MapredParquetOutputFormat, Serde: org.apache.hadoop.hive.ql.io.parquet.serde.ParquetHiveSerDe, Properties: [serialization.format=1]))
         +- Project [id#7L]
            +- Range (0, 100000, step=1, splits=None)
```

## How was this patch tested?
Added extra checks to the `ParquetMetastoreSuite`

Author: Herman van Hovell <hvanhovell@databricks.com>

Closes #15832 from hvanhovell/SPARK-18370.
2016-11-09 12:26:09 -08:00
gatorsmile e256392a12 [SPARK-17659][SQL] Partitioned View is Not Supported By SHOW CREATE TABLE
### What changes were proposed in this pull request?

`Partitioned View` is not supported by SPARK SQL. For Hive partitioned view, SHOW CREATE TABLE is unable to generate the right DDL. Thus, SHOW CREATE TABLE should not support it like the other Hive-only features. This PR is to issue an exception when detecting the view is a partitioned view.
### How was this patch tested?

Added a test case

Author: gatorsmile <gatorsmile@gmail.com>

Closes #15233 from gatorsmile/partitionedView.
2016-11-09 00:11:48 -08:00
Eric Liang 4afa39e223 [SPARK-18333][SQL] Revert hacks in parquet and orc reader to support case insensitive resolution
## What changes were proposed in this pull request?

These are no longer needed after https://issues.apache.org/jira/browse/SPARK-17183

cc cloud-fan

## How was this patch tested?

Existing parquet and orc tests.

Author: Eric Liang <ekl@databricks.com>

Closes #15799 from ericl/sc-4929.
2016-11-09 15:00:46 +08:00
Burak Yavuz 6f7ecb0f29 [SPARK-18342] Make rename failures fatal in HDFSBackedStateStore
## What changes were proposed in this pull request?

If the rename operation in the state store fails (`fs.rename` returns `false`), the StateStore should throw an exception and have the task retry. Currently if renames fail, nothing happens during execution immediately. However, you will observe that snapshot operations will fail, and then any attempt at recovery (executor failure / checkpoint recovery) also fails.

## How was this patch tested?

Unit test

Author: Burak Yavuz <brkyvz@gmail.com>

Closes #15804 from brkyvz/rename-state.
2016-11-08 15:08:09 -08:00
jiangxingbo 9c419698fe [SPARK-18191][CORE] Port RDD API to use commit protocol
## What changes were proposed in this pull request?

This PR port RDD API to use commit protocol, the changes made here:
1. Add new internal helper class that saves an RDD using a Hadoop OutputFormat named `SparkNewHadoopWriter`, it's similar with `SparkHadoopWriter` but uses commit protocol. This class supports the newer `mapreduce` API, instead of the old `mapred` API which is supported by `SparkHadoopWriter`;
2. Rewrite `PairRDDFunctions.saveAsNewAPIHadoopDataset` function, so it uses commit protocol now.

## How was this patch tested?
Exsiting test cases.

Author: jiangxingbo <jiangxb1987@gmail.com>

Closes #15769 from jiangxb1987/rdd-commit.
2016-11-08 09:41:01 -08:00
Wenchen Fan 73feaa30eb [SPARK-18346][SQL] TRUNCATE TABLE should fail if no partition is matched for the given non-partial partition spec
## What changes were proposed in this pull request?

a follow up of https://github.com/apache/spark/pull/15688

## How was this patch tested?

updated test in `DDLSuite`

Author: Wenchen Fan <wenchen@databricks.com>

Closes #15805 from cloud-fan/truncate.
2016-11-08 22:28:29 +08:00
gatorsmile 1da64e1fa0 [SPARK-18217][SQL] Disallow creating permanent views based on temporary views or UDFs
### What changes were proposed in this pull request?
Based on the discussion in [SPARK-18209](https://issues.apache.org/jira/browse/SPARK-18209). It doesn't really make sense to create permanent views based on temporary views or temporary UDFs.

To disallow the supports and issue the exceptions, this PR needs to detect whether a temporary view/UDF is being used when defining a permanent view. Basically, this PR can be split to two sub-tasks:

**Task 1:** detecting a temporary view from the query plan of view definition.
When finding an unresolved temporary view, Analyzer replaces it by a `SubqueryAlias` with the corresponding logical plan, which is stored in an in-memory HashMap. After replacement, it is impossible to detect whether the `SubqueryAlias` is added/generated from a temporary view. Thus, to detect the usage of a temporary view in view definition, this PR traverses the unresolved logical plan and uses the name of an `UnresolvedRelation` to detect whether it is a (global) temporary view.

**Task 2:** detecting a temporary UDF from the query plan of view definition.
Detecting usage of a temporary UDF in view definition is not straightfoward.

First, in the analyzed plan, we are having different forms to represent the functions. More importantly, some classes (e.g., `HiveGenericUDF`) are not accessible from `CreateViewCommand`, which is part of  `sql/core`. Thus, we used the unanalyzed plan `child` of `CreateViewCommand` to detect the usage of a temporary UDF. Because the plan has already been successfully analyzed, we can assume the functions have been defined/registered.

Second, in Spark, the functions have four forms: Spark built-in functions, built-in hash functions, permanent UDFs and temporary UDFs. We do not have any direct way to determine whether a function is temporary or not. Thus, we introduced a function `isTemporaryFunction` in `SessionCatalog`. This function contains the detailed logics to determine whether a function is temporary or not.

### How was this patch tested?
Added test cases.

Author: gatorsmile <gatorsmile@gmail.com>

Closes #15764 from gatorsmile/blockTempFromPermViewCreation.
2016-11-07 18:34:21 -08:00
Liwei Lin c1a0c66bd2 [SPARK-18261][STRUCTURED STREAMING] Add statistics to MemorySink for joining
## What changes were proposed in this pull request?

Right now, there is no way to join the output of a memory sink with any table:

> UnsupportedOperationException: LeafNode MemoryPlan must implement statistics

This patch adds statistics to MemorySink, making joining snapshots of memory streams with tables possible.

## How was this patch tested?

Added a test case.

Author: Liwei Lin <lwlin7@gmail.com>

Closes #15786 from lw-lin/memory-sink-stat.
2016-11-07 17:49:24 -08:00
Ryan Blue 9b0593d5e9 [SPARK-18086] Add support for Hive session vars.
## What changes were proposed in this pull request?

This adds support for Hive variables:

* Makes values set via `spark-sql --hivevar name=value` accessible
* Adds `getHiveVar` and `setHiveVar` to the `HiveClient` interface
* Adds a SessionVariables trait for sessions like Hive that support variables (including Hive vars)
* Adds SessionVariables support to variable substitution
* Adds SessionVariables support to the SET command

## How was this patch tested?

* Adds a test to all supported Hive versions for accessing Hive variables
* Adds HiveVariableSubstitutionSuite

Author: Ryan Blue <blue@apache.org>

Closes #15738 from rdblue/SPARK-18086-add-hivevar-support.
2016-11-07 17:36:15 -08:00
hyukjinkwon 3eda05703f [SPARK-18295][SQL] Make to_json function null safe (matching it to from_json)
## What changes were proposed in this pull request?

This PR proposes to match up the behaviour of `to_json` to `from_json` function for null-safety.

Currently, it throws `NullPointException` but this PR fixes this to produce `null` instead.

with the data below:

```scala
import spark.implicits._

val df = Seq(Some(Tuple1(Tuple1(1))), None).toDF("a")
df.show()
```

```
+----+
|   a|
+----+
| [1]|
|null|
+----+
```

the codes below

```scala
import org.apache.spark.sql.functions._

df.select(to_json($"a")).show()
```

produces..

**Before**

throws `NullPointException` as below:

```
java.lang.NullPointerException
  at org.apache.spark.sql.catalyst.json.JacksonGenerator.org$apache$spark$sql$catalyst$json$JacksonGenerator$$writeFields(JacksonGenerator.scala:138)
  at org.apache.spark.sql.catalyst.json.JacksonGenerator$$anonfun$write$1.apply$mcV$sp(JacksonGenerator.scala:194)
  at org.apache.spark.sql.catalyst.json.JacksonGenerator.org$apache$spark$sql$catalyst$json$JacksonGenerator$$writeObject(JacksonGenerator.scala:131)
  at org.apache.spark.sql.catalyst.json.JacksonGenerator.write(JacksonGenerator.scala:193)
  at org.apache.spark.sql.catalyst.expressions.StructToJson.eval(jsonExpressions.scala:544)
  at org.apache.spark.sql.catalyst.expressions.Alias.eval(namedExpressions.scala:142)
  at org.apache.spark.sql.catalyst.expressions.InterpretedProjection.apply(Projection.scala:48)
  at org.apache.spark.sql.catalyst.expressions.InterpretedProjection.apply(Projection.scala:30)
  at scala.collection.TraversableLike$$anonfun$map$1.apply(TraversableLike.scala:234)
```

**After**

```
+---------------+
|structtojson(a)|
+---------------+
|       {"_1":1}|
|           null|
+---------------+
```

## How was this patch tested?

Unit test in `JsonExpressionsSuite.scala` and `JsonFunctionsSuite.scala`.

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #15792 from HyukjinKwon/SPARK-18295.
2016-11-07 16:54:40 -08:00
Josh Rosen 3a710b94b0 [SPARK-18236] Reduce duplicate objects in Spark UI and HistoryServer
## What changes were proposed in this pull request?

When profiling heap dumps from the HistoryServer and live Spark web UIs, I found a large amount of memory being wasted on duplicated objects and strings. This patch's changes remove most of this duplication, resulting in over 40% memory savings for some benchmarks.

- **Task metrics** (6441f0624dfcda9c7193a64bfb416a145b5aabdf): previously, every `TaskUIData` object would have its own instances of `InputMetricsUIData`, `OutputMetricsUIData`, `ShuffleReadMetrics`, and `ShuffleWriteMetrics`, but for many tasks these metrics are irrelevant because they're all zero. This patch changes how we construct these metrics in order to re-use a single immutable "empty" value for the cases where these metrics are empty.
- **TaskInfo.accumulables** (ade86db901127bf13c0e0bdc3f09c933a093bb76): Previously, every `TaskInfo` object had its own empty `ListBuffer` for holding updates from named accumulators. Tasks which didn't use named accumulators still paid for the cost of allocating and storing this empty buffer. To avoid this overhead, I changed the `val` with a mutable buffer into a `var` which holds an immutable Scala list, allowing tasks which do not have named accumulator updates to share the same singleton `Nil` object.
- **String.intern() in JSONProtocol** (7e05630e9a78c455db8c8c499f0590c864624e05): in the HistoryServer, executor hostnames and ids are deserialized from JSON, leading to massive duplication of these string objects. By calling `String.intern()` on the deserialized values we can remove all of this duplication. Since Spark now requires Java 7+ we don't have to worry about string interning exhausting the permgen (see http://java-performance.info/string-intern-in-java-6-7-8/).

## How was this patch tested?

I ran

```
sc.parallelize(1 to 100000, 100000).count()
```

in `spark-shell` with event logging enabled, then loaded that event log in the HistoryServer, performed a full GC, and took a heap dump. According to YourKit, the changes in this patch reduced memory consumption by roughly 28 megabytes (or 770k Java objects):

![image](https://cloud.githubusercontent.com/assets/50748/19953276/4f3a28aa-a129-11e6-93df-d7fa91396f66.png)

Here's a table illustrating the drop in objects due to deduplication (the drop is <100k for some objects because some events were dropped from the listener bus; this is a separate, existing bug that I'll address separately after CPU-profiling):

![image](https://cloud.githubusercontent.com/assets/50748/19953290/6a271290-a129-11e6-93ad-b825f1448886.png)

Author: Josh Rosen <joshrosen@databricks.com>

Closes #15743 from JoshRosen/spark-ui-memory-usage.
2016-11-07 16:14:19 -08:00
Kazuaki Ishizaki 19cf208063 [SPARK-17490][SQL] Optimize SerializeFromObject() for a primitive array
## What changes were proposed in this pull request?

Waiting for merging #13680

This PR optimizes `SerializeFromObject()` for an primitive array. This is derived from #13758 to address one of problems by using a simple way in #13758.

The current implementation always generates `GenericArrayData` from `SerializeFromObject()` for any type of an array in a logical plan. This involves a boxing at a constructor of `GenericArrayData` when `SerializedFromObject()` has an primitive array.

This PR enables to generate `UnsafeArrayData` from `SerializeFromObject()` for a primitive array. It can avoid boxing to create an instance of `ArrayData` in the generated code by Catalyst.

This PR also generate `UnsafeArrayData` in a case for `RowEncoder.serializeFor` or `CatalystTypeConverters.createToCatalystConverter`.

Performance improvement of `SerializeFromObject()` is up to 2.0x

```
OpenJDK 64-Bit Server VM 1.8.0_91-b14 on Linux 4.4.11-200.fc22.x86_64
Intel Xeon E3-12xx v2 (Ivy Bridge)

Without this PR
Write an array in Dataset:               Best/Avg Time(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------
Int                                            556 /  608         15.1          66.3       1.0X
Double                                        1668 / 1746          5.0         198.8       0.3X

with this PR
Write an array in Dataset:               Best/Avg Time(ms)    Rate(M/s)   Per Row(ns)   Relative
------------------------------------------------------------------------------------------------
Int                                            352 /  401         23.8          42.0       1.0X
Double                                         821 /  885         10.2          97.9       0.4X
```

Here is an example program that will happen in mllib as described in [SPARK-16070](https://issues.apache.org/jira/browse/SPARK-16070).

```
sparkContext.parallelize(Seq(Array(1, 2)), 1).toDS.map(e => e).show
```

Generated code before applying this PR

``` java
/* 039 */   protected void processNext() throws java.io.IOException {
/* 040 */     while (inputadapter_input.hasNext()) {
/* 041 */       InternalRow inputadapter_row = (InternalRow) inputadapter_input.next();
/* 042 */       int[] inputadapter_value = (int[])inputadapter_row.get(0, null);
/* 043 */
/* 044 */       Object mapelements_obj = ((Expression) references[0]).eval(null);
/* 045 */       scala.Function1 mapelements_value1 = (scala.Function1) mapelements_obj;
/* 046 */
/* 047 */       boolean mapelements_isNull = false || false;
/* 048 */       int[] mapelements_value = null;
/* 049 */       if (!mapelements_isNull) {
/* 050 */         Object mapelements_funcResult = null;
/* 051 */         mapelements_funcResult = mapelements_value1.apply(inputadapter_value);
/* 052 */         if (mapelements_funcResult == null) {
/* 053 */           mapelements_isNull = true;
/* 054 */         } else {
/* 055 */           mapelements_value = (int[]) mapelements_funcResult;
/* 056 */         }
/* 057 */
/* 058 */       }
/* 059 */       mapelements_isNull = mapelements_value == null;
/* 060 */
/* 061 */       serializefromobject_argIsNulls[0] = mapelements_isNull;
/* 062 */       serializefromobject_argValue = mapelements_value;
/* 063 */
/* 064 */       boolean serializefromobject_isNull = false;
/* 065 */       for (int idx = 0; idx < 1; idx++) {
/* 066 */         if (serializefromobject_argIsNulls[idx]) { serializefromobject_isNull = true; break; }
/* 067 */       }
/* 068 */
/* 069 */       final ArrayData serializefromobject_value = serializefromobject_isNull ? null : new org.apache.spark.sql.catalyst.util.GenericArrayData(serializefromobject_argValue);
/* 070 */       serializefromobject_holder.reset();
/* 071 */
/* 072 */       serializefromobject_rowWriter.zeroOutNullBytes();
/* 073 */
/* 074 */       if (serializefromobject_isNull) {
/* 075 */         serializefromobject_rowWriter.setNullAt(0);
/* 076 */       } else {
/* 077 */         // Remember the current cursor so that we can calculate how many bytes are
/* 078 */         // written later.
/* 079 */         final int serializefromobject_tmpCursor = serializefromobject_holder.cursor;
/* 080 */
/* 081 */         if (serializefromobject_value instanceof UnsafeArrayData) {
/* 082 */           final int serializefromobject_sizeInBytes = ((UnsafeArrayData) serializefromobject_value).getSizeInBytes();
/* 083 */           // grow the global buffer before writing data.
/* 084 */           serializefromobject_holder.grow(serializefromobject_sizeInBytes);
/* 085 */           ((UnsafeArrayData) serializefromobject_value).writeToMemory(serializefromobject_holder.buffer, serializefromobject_holder.cursor);
/* 086 */           serializefromobject_holder.cursor += serializefromobject_sizeInBytes;
/* 087 */
/* 088 */         } else {
/* 089 */           final int serializefromobject_numElements = serializefromobject_value.numElements();
/* 090 */           serializefromobject_arrayWriter.initialize(serializefromobject_holder, serializefromobject_numElements, 4);
/* 091 */
/* 092 */           for (int serializefromobject_index = 0; serializefromobject_index < serializefromobject_numElements; serializefromobject_index++) {
/* 093 */             if (serializefromobject_value.isNullAt(serializefromobject_index)) {
/* 094 */               serializefromobject_arrayWriter.setNullInt(serializefromobject_index);
/* 095 */             } else {
/* 096 */               final int serializefromobject_element = serializefromobject_value.getInt(serializefromobject_index);
/* 097 */               serializefromobject_arrayWriter.write(serializefromobject_index, serializefromobject_element);
/* 098 */             }
/* 099 */           }
/* 100 */         }
/* 101 */
/* 102 */         serializefromobject_rowWriter.setOffsetAndSize(0, serializefromobject_tmpCursor, serializefromobject_holder.cursor - serializefromobject_tmpCursor);
/* 103 */       }
/* 104 */       serializefromobject_result.setTotalSize(serializefromobject_holder.totalSize());
/* 105 */       append(serializefromobject_result);
/* 106 */       if (shouldStop()) return;
/* 107 */     }
/* 108 */   }
/* 109 */ }
```

Generated code after applying this PR

``` java
/* 035 */   protected void processNext() throws java.io.IOException {
/* 036 */     while (inputadapter_input.hasNext()) {
/* 037 */       InternalRow inputadapter_row = (InternalRow) inputadapter_input.next();
/* 038 */       int[] inputadapter_value = (int[])inputadapter_row.get(0, null);
/* 039 */
/* 040 */       Object mapelements_obj = ((Expression) references[0]).eval(null);
/* 041 */       scala.Function1 mapelements_value1 = (scala.Function1) mapelements_obj;
/* 042 */
/* 043 */       boolean mapelements_isNull = false || false;
/* 044 */       int[] mapelements_value = null;
/* 045 */       if (!mapelements_isNull) {
/* 046 */         Object mapelements_funcResult = null;
/* 047 */         mapelements_funcResult = mapelements_value1.apply(inputadapter_value);
/* 048 */         if (mapelements_funcResult == null) {
/* 049 */           mapelements_isNull = true;
/* 050 */         } else {
/* 051 */           mapelements_value = (int[]) mapelements_funcResult;
/* 052 */         }
/* 053 */
/* 054 */       }
/* 055 */       mapelements_isNull = mapelements_value == null;
/* 056 */
/* 057 */       boolean serializefromobject_isNull = mapelements_isNull;
/* 058 */       final ArrayData serializefromobject_value = serializefromobject_isNull ? null : org.apache.spark.sql.catalyst.expressions.UnsafeArrayData.fromPrimitiveArray(mapelements_value);
/* 059 */       serializefromobject_isNull = serializefromobject_value == null;
/* 060 */       serializefromobject_holder.reset();
/* 061 */
/* 062 */       serializefromobject_rowWriter.zeroOutNullBytes();
/* 063 */
/* 064 */       if (serializefromobject_isNull) {
/* 065 */         serializefromobject_rowWriter.setNullAt(0);
/* 066 */       } else {
/* 067 */         // Remember the current cursor so that we can calculate how many bytes are
/* 068 */         // written later.
/* 069 */         final int serializefromobject_tmpCursor = serializefromobject_holder.cursor;
/* 070 */
/* 071 */         if (serializefromobject_value instanceof UnsafeArrayData) {
/* 072 */           final int serializefromobject_sizeInBytes = ((UnsafeArrayData) serializefromobject_value).getSizeInBytes();
/* 073 */           // grow the global buffer before writing data.
/* 074 */           serializefromobject_holder.grow(serializefromobject_sizeInBytes);
/* 075 */           ((UnsafeArrayData) serializefromobject_value).writeToMemory(serializefromobject_holder.buffer, serializefromobject_holder.cursor);
/* 076 */           serializefromobject_holder.cursor += serializefromobject_sizeInBytes;
/* 077 */
/* 078 */         } else {
/* 079 */           final int serializefromobject_numElements = serializefromobject_value.numElements();
/* 080 */           serializefromobject_arrayWriter.initialize(serializefromobject_holder, serializefromobject_numElements, 4);
/* 081 */
/* 082 */           for (int serializefromobject_index = 0; serializefromobject_index < serializefromobject_numElements; serializefromobject_index++) {
/* 083 */             if (serializefromobject_value.isNullAt(serializefromobject_index)) {
/* 084 */               serializefromobject_arrayWriter.setNullInt(serializefromobject_index);
/* 085 */             } else {
/* 086 */               final int serializefromobject_element = serializefromobject_value.getInt(serializefromobject_index);
/* 087 */               serializefromobject_arrayWriter.write(serializefromobject_index, serializefromobject_element);
/* 088 */             }
/* 089 */           }
/* 090 */         }
/* 091 */
/* 092 */         serializefromobject_rowWriter.setOffsetAndSize(0, serializefromobject_tmpCursor, serializefromobject_holder.cursor - serializefromobject_tmpCursor);
/* 093 */       }
/* 094 */       serializefromobject_result.setTotalSize(serializefromobject_holder.totalSize());
/* 095 */       append(serializefromobject_result);
/* 096 */       if (shouldStop()) return;
/* 097 */     }
/* 098 */   }
/* 099 */ }
```
## How was this patch tested?

Added a test in `DatasetSuite`, `RowEncoderSuite`, and `CatalystTypeConvertersSuite`

Author: Kazuaki Ishizaki <ishizaki@jp.ibm.com>

Closes #15044 from kiszk/SPARK-17490.
2016-11-08 00:14:57 +01:00
Liang-Chi Hsieh a814eeac6b [SPARK-18125][SQL] Fix a compilation error in codegen due to splitExpression
## What changes were proposed in this pull request?

As reported in the jira, sometimes the generated java code in codegen will cause compilation error.

Code snippet to test it:

    case class Route(src: String, dest: String, cost: Int)
    case class GroupedRoutes(src: String, dest: String, routes: Seq[Route])

    val ds = sc.parallelize(Array(
      Route("a", "b", 1),
      Route("a", "b", 2),
      Route("a", "c", 2),
      Route("a", "d", 10),
      Route("b", "a", 1),
      Route("b", "a", 5),
      Route("b", "c", 6))
    ).toDF.as[Route]

    val grped = ds.map(r => GroupedRoutes(r.src, r.dest, Seq(r)))
      .groupByKey(r => (r.src, r.dest))
      .reduceGroups { (g1: GroupedRoutes, g2: GroupedRoutes) =>
        GroupedRoutes(g1.src, g1.dest, g1.routes ++ g2.routes)
      }.map(_._2)

The problem here is, in `ReferenceToExpressions` we evaluate the children vars to local variables. Then the result expression is evaluated to use those children variables. In the above case, the result expression code is too long and will be split by `CodegenContext.splitExpression`. So those local variables cannot be accessed and cause compilation error.

## How was this patch tested?

Jenkins tests.

Please review https://cwiki.apache.org/confluence/display/SPARK/Contributing+to+Spark before opening a pull request.

Author: Liang-Chi Hsieh <viirya@gmail.com>

Closes #15693 from viirya/fix-codege-compilation-error.
2016-11-07 12:18:19 +01:00
Reynold Xin 9db06c442c [SPARK-18296][SQL] Use consistent naming for expression test suites
## What changes were proposed in this pull request?
We have an undocumented naming convention to call expression unit tests ExpressionsSuite, and the end-to-end tests FunctionsSuite. It'd be great to make all test suites consistent with this naming convention.

## How was this patch tested?
This is a test-only naming change.

Author: Reynold Xin <rxin@databricks.com>

Closes #15793 from rxin/SPARK-18296.
2016-11-06 22:44:55 -08:00
Wenchen Fan 46b2e49993 [SPARK-18173][SQL] data source tables should support truncating partition
## What changes were proposed in this pull request?

Previously `TRUNCATE TABLE ... PARTITION` will always truncate the whole table for data source tables, this PR fixes it and improve `InMemoryCatalog` to make this command work with it.
## How was this patch tested?

existing tests

Author: Wenchen Fan <wenchen@databricks.com>

Closes #15688 from cloud-fan/truncate.
2016-11-06 18:57:13 -08:00
hyukjinkwon 556a3b7d07 [SPARK-18269][SQL] CSV datasource should read null properly when schema is lager than parsed tokens
## What changes were proposed in this pull request?

Currently, there are the three cases when reading CSV by datasource when it is `PERMISSIVE` parse mode.

- schema == parsed tokens (from each line)
  No problem to cast the value in the tokens to the field in the schema as they are equal.

- schema < parsed tokens (from each line)
  It slices the tokens into the number of fields in schema.

- schema > parsed tokens (from each line)
  It appends `null` into parsed tokens so that safely values can be casted with the schema.

However, when `null` is appended in the third case, we should take `null` into account when casting the values.

In case of `StringType`, it is fine as `UTF8String.fromString(datum)` produces `null` when the input is `null`. Therefore, this case will happen only when schema is explicitly given and schema includes data types that are not `StringType`.

The codes below:

```scala
val path = "/tmp/a"
Seq("1").toDF().write.text(path.getAbsolutePath)
val schema = StructType(
  StructField("a", IntegerType, true) ::
  StructField("b", IntegerType, true) :: Nil)
spark.read.schema(schema).option("header", "false").csv(path).show()
```

prints

**Before**

```
java.lang.NumberFormatException: null
at java.lang.Integer.parseInt(Integer.java:542)
at java.lang.Integer.parseInt(Integer.java:615)
at scala.collection.immutable.StringLike$class.toInt(StringLike.scala:272)
at scala.collection.immutable.StringOps.toInt(StringOps.scala:29)
at org.apache.spark.sql.execution.datasources.csv.CSVTypeCast$.castTo(CSVInferSchema.scala:24)
```

**After**

```
+---+----+
|  a|   b|
+---+----+
|  1|null|
+---+----+
```

## How was this patch tested?

Unit test in `CSVSuite.scala` and `CSVTypeCastSuite.scala`

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #15767 from HyukjinKwon/SPARK-18269.
2016-11-06 18:52:05 -08:00
hyukjinkwon 340f09d100
[SPARK-17854][SQL] rand/randn allows null/long as input seed
## What changes were proposed in this pull request?

This PR proposes `rand`/`randn` accept `null` as input in Scala/SQL and `LongType` as input in SQL. In this case, it treats the values as `0`.

So, this PR includes both changes below:
- `null` support

  It seems MySQL also accepts this.

  ``` sql
  mysql> select rand(0);
  +---------------------+
  | rand(0)             |
  +---------------------+
  | 0.15522042769493574 |
  +---------------------+
  1 row in set (0.00 sec)

  mysql> select rand(NULL);
  +---------------------+
  | rand(NULL)          |
  +---------------------+
  | 0.15522042769493574 |
  +---------------------+
  1 row in set (0.00 sec)
  ```

  and also Hive does according to [HIVE-14694](https://issues.apache.org/jira/browse/HIVE-14694)

  So the codes below:

  ``` scala
  spark.range(1).selectExpr("rand(null)").show()
  ```

  prints..

  **Before**

  ```
    Input argument to rand must be an integer literal.;; line 1 pos 0
  org.apache.spark.sql.AnalysisException: Input argument to rand must be an integer literal.;; line 1 pos 0
  at org.apache.spark.sql.catalyst.analysis.FunctionRegistry$$anonfun$5.apply(FunctionRegistry.scala:465)
  at org.apache.spark.sql.catalyst.analysis.FunctionRegistry$$anonfun$5.apply(FunctionRegistry.scala:444)
  ```

  **After**

  ```
    +-----------------------+
    |rand(CAST(NULL AS INT))|
    +-----------------------+
    |    0.13385709732307427|
    +-----------------------+
  ```
- `LongType` support in SQL.

  In addition, it make the function allows to take `LongType` consistently within Scala/SQL.

  In more details, the codes below:

  ``` scala
  spark.range(1).select(rand(1), rand(1L)).show()
  spark.range(1).selectExpr("rand(1)", "rand(1L)").show()
  ```

  prints..

  **Before**

  ```
  +------------------+------------------+
  |           rand(1)|           rand(1)|
  +------------------+------------------+
  |0.2630967864682161|0.2630967864682161|
  +------------------+------------------+

  Input argument to rand must be an integer literal.;; line 1 pos 0
  org.apache.spark.sql.AnalysisException: Input argument to rand must be an integer literal.;; line 1 pos 0
  at org.apache.spark.sql.catalyst.analysis.FunctionRegistry$$anonfun$5.apply(FunctionRegistry.scala:465)
  at
  ```

  **After**

  ```
  +------------------+------------------+
  |           rand(1)|           rand(1)|
  +------------------+------------------+
  |0.2630967864682161|0.2630967864682161|
  +------------------+------------------+

  +------------------+------------------+
  |           rand(1)|           rand(1)|
  +------------------+------------------+
  |0.2630967864682161|0.2630967864682161|
  +------------------+------------------+
  ```
## How was this patch tested?

Unit tests in `DataFrameSuite.scala` and `RandomSuite.scala`.

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #15432 from HyukjinKwon/SPARK-17854.
2016-11-06 14:11:37 +00:00
hyukjinkwon 15d3926884 [MINOR][DOCUMENTATION] Fix some minor descriptions in functions consistently with expressions
## What changes were proposed in this pull request?

This PR proposes to improve documentation and fix some descriptions equivalent to several minor fixes identified in https://github.com/apache/spark/pull/15677

Also, this suggests to change `Note:` and `NOTE:` to `.. note::` consistently with the others which marks up pretty.

## How was this patch tested?

Jenkins tests and manually.

For PySpark, `Note:` and `NOTE:` to `.. note::` make the document as below:

**From**

![2016-11-04 6 53 35](https://cloud.githubusercontent.com/assets/6477701/20002648/42989922-a2c5-11e6-8a32-b73eda49e8c3.png)
![2016-11-04 6 53 45](https://cloud.githubusercontent.com/assets/6477701/20002650/429fb310-a2c5-11e6-926b-e030d7eb0185.png)
![2016-11-04 6 54 11](https://cloud.githubusercontent.com/assets/6477701/20002649/429d570a-a2c5-11e6-9e7e-44090f337e32.png)
![2016-11-04 6 53 51](https://cloud.githubusercontent.com/assets/6477701/20002647/4297fc74-a2c5-11e6-801a-b89fbcbfca44.png)
![2016-11-04 6 53 51](https://cloud.githubusercontent.com/assets/6477701/20002697/749f5780-a2c5-11e6-835f-022e1f2f82e3.png)

**To**

![2016-11-04 7 03 48](https://cloud.githubusercontent.com/assets/6477701/20002659/4961b504-a2c5-11e6-9ee0-ef0751482f47.png)
![2016-11-04 7 04 03](https://cloud.githubusercontent.com/assets/6477701/20002660/49871d3a-a2c5-11e6-85ea-d9a5d11efeff.png)
![2016-11-04 7 04 28](https://cloud.githubusercontent.com/assets/6477701/20002662/498e0f14-a2c5-11e6-803d-c0c5aeda4153.png)
![2016-11-04 7 33 39](https://cloud.githubusercontent.com/assets/6477701/20002731/a76e30d2-a2c5-11e6-993b-0481b8342d6b.png)
![2016-11-04 7 33 39](https://cloud.githubusercontent.com/assets/6477701/20002731/a76e30d2-a2c5-11e6-993b-0481b8342d6b.png)

Author: hyukjinkwon <gurwls223@gmail.com>

Closes #15765 from HyukjinKwon/minor-function-doc.
2016-11-05 21:47:33 -07:00
wangyang fb0d60814a [SPARK-17849][SQL] Fix NPE problem when using grouping sets
## What changes were proposed in this pull request?

Prior this pr, the following code would cause an NPE:
`case class point(a:String, b:String, c:String, d: Int)`

`val data = Seq(
point("1","2","3", 1),
point("4","5","6", 1),
point("7","8","9", 1)
)`
`sc.parallelize(data).toDF().registerTempTable("table")`
`spark.sql("select a, b, c, count(d) from table group by a, b, c GROUPING SETS ((a)) ").show()`

The reason is that when the grouping_id() behavior was changed in #10677, some code (which should be changed) was left out.

Take the above code for example, prior #10677, the bit mask for set "(a)" was `001`, while after #10677 the bit mask was changed to `011`. However, the `nonNullBitmask` was not changed accordingly.

This pr will fix this problem.
## How was this patch tested?

add integration tests

Author: wangyang <wangyang@haizhi.com>

Closes #15416 from yangw1234/groupingid.
2016-11-05 14:32:28 +01:00