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[SPARK-27871] LambdaVariable should use per-query unique IDs instead of globally unique IDs - Spark - [issue]
http://issues.apache.org/jira/browse/SPARK-27871    Author: Wenchen Fan , 2020-01-23, 13:42
[SPARK-30605] move defaultNamespace from SupportsNamespace to CatalogPlugin - Spark - [issue]
http://issues.apache.org/jira/browse/SPARK-30605    Author: Wenchen Fan , 2020-01-23, 13:57
[SPARK-30620] avoid unnecessary serialization in AggregateExpression - Spark - [issue]
http://issues.apache.org/jira/browse/SPARK-30620    Author: Wenchen Fan , 2020-01-23, 19:07
[SPARK-30571] coalesce shuffle reader with splitting shuffle fetch request fails - Spark - [issue]
http://issues.apache.org/jira/browse/SPARK-30571    Author: Wenchen Fan , 2020-01-21, 09:56
[SPARK-30555] MERGE INTO insert action should only access columns from source table - Spark - [issue]
http://issues.apache.org/jira/browse/SPARK-30555    Author: Wenchen Fan , 2020-01-22, 14:43
[SPARK-29482]  ANALYZE TABLE should look up catalog/table like v2 commands - Spark - [issue]
http://issues.apache.org/jira/browse/SPARK-29482    Author: Wenchen Fan , 2020-01-22, 21:54
[SPARK-30679] REPLACE TABLE can omit the USING clause - Spark - [issue]
http://issues.apache.org/jira/browse/SPARK-30679    Author: Wenchen Fan , 2020-02-03, 04:53
[SPARK-24625] put all the backward compatible behavior change configs under spark.sql.legacy.* - Spark - [issue]
...Recently we made several behavior changes to Spark SQL, to make it more ANSI SQL compliant or fix some unreasonable behaviors. For backward compatibility, we add configs to allow users fallb...
http://issues.apache.org/jira/browse/SPARK-24625    Author: Wenchen Fan , 2020-02-03, 06:36
[SPARK-25531] new write APIs for data source v2 - Spark - [issue]
...The current data source write API heavily depend on SaveMode, which doesn't have a clear semantic, especially when writing to tables.We should design a new set of write API without SaveMode....
http://issues.apache.org/jira/browse/SPARK-25531    Author: Wenchen Fan , 2020-02-03, 06:39
[SPARK-26448] retain the difference between 0.0 and -0.0 - Spark - [issue]
http://issues.apache.org/jira/browse/SPARK-26448    Author: Wenchen Fan , 2020-02-03, 06:40