Liang-Chi Hsieh f2e22aebfe [SPARK-21835][SQL] RewritePredicateSubquery should not produce unresolved query plans ... ## What changes were proposed in this pull request? Correlated predicate subqueries are rewritten into `Join` by the rule `RewritePredicateSubquery` during optimization. It is possibly that the two sides of the `Join` have conflicting attributes. The query plans produced by `RewritePredicateSubquery` become unresolved and break structural integrity. We should check if there are conflicting attributes in the `Join` and de-duplicate them by adding a `Project`. ## How was this patch tested? Added tests. Author: Liang-Chi Hsieh <viirya@gmail.com> Closes #19050 from viirya/SPARK-21835.		2017-09-06 07:42:19 -07:00
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src	[SPARK-21835][SQL] RewritePredicateSubquery should not produce unresolved query plans	2017-09-06 07:42:19 -07:00
pom.xml	[SPARK-14280][BUILD][WIP] Update change-version.sh and pom.xml to add Scala 2.12 profiles and enable 2.12 compilation	2017-09-01 19:21:21 +01:00