Herman van Hovell d28c67544b [SPARK-14986][SQL] Return correct result for empty LATERAL VIEW OUTER ... ## What changes were proposed in this pull request? A Generate with the `outer` flag enabled should always return one or more rows for every input row. The optimizer currently violates this by rewriting `outer` Generates that do not contain columns of the child plan into an unjoined generate, for example: ```sql select e from a lateral view outer explode(a.b) as e ``` The result of this is that `outer` Generate does not produce output at all when the Generators' input expression is empty. This PR fixes this. ## How was this patch tested? Added test case to `SQLQuerySuite`. Author: Herman van Hovell <hvanhovell@questtec.nl> Closes #12906 from hvanhovell/SPARK-14986.		2016-05-10 12:47:31 -07:00
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src	[SPARK-14986][SQL] Return correct result for empty LATERAL VIEW OUTER	2016-05-10 12:47:31 -07:00
pom.xml	Revert "[SPARK-14613][ML] Add @Since into the matrix and vector classes in spark-mllib-local"	2016-04-28 19:57:41 -07:00