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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benchmarks	[SPARK-25657][SQL][TEST] Refactor HashBenchmark to use main method	2018-10-07 09:49:37 -07:00
src	[SPARK-27314][SQL] Deduplicate exprIds for Union.	2019-03-29 14:05:38 -07:00
pom.xml	[SPARK-27016][SQL][BUILD] Treat all antlr warnings as errors while generating parser from the sql grammar file.	2019-03-03 10:02:25 -06:00