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ulysses-you 999d3b89b6 [SPARK-34515][SQL] Fix NPE if InSet contains null value during getPartitionsByFilter 
### What changes were proposed in this pull request?

Skip null value during rewrite `InSet` to `>= and <=` at getPartitionsByFilter.

### Why are the changes needed?

Spark will convert `InSet` to `>= and <=` if it's values size over `spark.sql.hive.metastorePartitionPruningInSetThreshold` during pruning partition . At this case, if values contain a null, we will get such exception 
 
```
java.lang.NullPointerException
 at org.apache.spark.unsafe.types.UTF8String.compareTo(UTF8String.java:1389)
 at org.apache.spark.unsafe.types.UTF8String.compareTo(UTF8String.java:50)
 at scala.math.LowPriorityOrderingImplicits$$anon$3.compare(Ordering.scala:153)
 at java.util.TimSort.countRunAndMakeAscending(TimSort.java:355)
 at java.util.TimSort.sort(TimSort.java:220)
 at java.util.Arrays.sort(Arrays.java:1438)
 at scala.collection.SeqLike.sorted(SeqLike.scala:659)
 at scala.collection.SeqLike.sorted$(SeqLike.scala:647)
 at scala.collection.AbstractSeq.sorted(Seq.scala:45)
 at org.apache.spark.sql.hive.client.Shim_v0_13.convert$1(HiveShim.scala:772)
 at org.apache.spark.sql.hive.client.Shim_v0_13.$anonfun$convertFilters$4(HiveShim.scala:826)
 at scala.collection.immutable.Stream.flatMap(Stream.scala:489)
 at org.apache.spark.sql.hive.client.Shim_v0_13.convertFilters(HiveShim.scala:826)
 at org.apache.spark.sql.hive.client.Shim_v0_13.getPartitionsByFilter(HiveShim.scala:848)
 at org.apache.spark.sql.hive.client.HiveClientImpl.$anonfun$getPartitionsByFilter$1(HiveClientImpl.scala:750)
```

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

Yes, bug fix.

### How was this patch tested?

Add test.

Closes #31632 from ulysses-you/SPARK-34515.

Authored-by: ulysses-you <ulyssesyou18@gmail.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>
2021-02-24 21:32:19 +08:00
..
catalyst [SPARK-34514][SQL] Push down limit for LEFT SEMI and LEFT ANTI join 2021-02-24 10:23:01 +00:00
core [SPARK-34514][SQL] Push down limit for LEFT SEMI and LEFT ANTI join 2021-02-24 10:23:01 +00:00
hive [SPARK-34515][SQL] Fix NPE if InSet contains null value during getPartitionsByFilter 2021-02-24 21:32:19 +08:00
hive-thriftserver [SPARK-34373][SQL] HiveThriftServer2 startWithContext may hang with a race issue 2021-02-21 17:37:12 +09:00
create-docs.sh [SPARK-34010][SQL][DODCS] Use python3 instead of python in SQL documentation build 2021-01-05 19:48:10 +09:00
gen-sql-api-docs.py [SPARK-34022][DOCS][FOLLOW-UP] Fix typo in SQL built-in function docs 2021-01-06 09:28:22 -08:00
gen-sql-config-docs.py [SPARK-31550][SQL][DOCS] Set nondeterministic configurations with general meanings in sql configuration doc 2020-04-27 17:08:52 +09:00
gen-sql-functions-docs.py [SPARK-31562][SQL] Update ExpressionDescription for substring, current_date, and current_timestamp 2020-04-26 11:46:52 -07:00
mkdocs.yml [SPARK-30731] Update deprecated Mkdocs option 2020-02-19 17:28:58 +09:00
README.md [SPARK-30510][SQL][DOCS] Publicly document Spark SQL configuration options 2020-02-09 19:20:47 +09:00

README.md

Spark SQL

This module provides support for executing relational queries expressed in either SQL or the DataFrame/Dataset API.

Spark SQL is broken up into four subprojects:

  • Catalyst (sql/catalyst) - An implementation-agnostic framework for manipulating trees of relational operators and expressions.
  • Execution (sql/core) - A query planner / execution engine for translating Catalyst's logical query plans into Spark RDDs. This component also includes a new public interface, SQLContext, that allows users to execute SQL or LINQ statements against existing RDDs and Parquet files.
  • Hive Support (sql/hive) - Includes extensions that allow users to write queries using a subset of HiveQL and access data from a Hive Metastore using Hive SerDes. There are also wrappers that allow users to run queries that include Hive UDFs, UDAFs, and UDTFs.
  • HiveServer and CLI support (sql/hive-thriftserver) - Includes support for the SQL CLI (bin/spark-sql) and a HiveServer2 (for JDBC/ODBC) compatible server.

Running ./sql/create-docs.sh generates SQL documentation for built-in functions under sql/site, and SQL configuration documentation that gets included as part of configuration.md in the main docs directory.