Takuya UESHIN f176dd3f28 [SPARK-27314][SQL] Deduplicate exprIds for Union. ... ## What changes were proposed in this pull request? We have been having a potential problem with `Union` when the children have the same expression id in their outputs, which happens when self-union. ## How was this patch tested? Modified some tests to adjust plan changes. Closes #24236 from ueshin/issues/SPARK-27314/dedup_union. Authored-by: Takuya UESHIN <ueshin@databricks.com> Signed-off-by: Wenchen Fan <wenchen@databricks.com>		2019-03-29 14:05:38 -07:00
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antlr4/org/apache/spark/sql/catalyst/parser	[SPARK-27285] Support describing output of CTE	2019-03-26 16:00:56 -07:00
java/org/apache/spark/sql	[SPARK-27256][CORE][SQL] If the configuration is used to set the number of bytes, we'd better use bytesConf'.	2019-03-25 14:47:40 -07:00
scala/org/apache/spark/sql	[SPARK-27314][SQL] Deduplicate exprIds for Union.	2019-03-29 14:05:38 -07:00