Ali Afroozeh f55694638d [SPARK-32800][SQL] Remove ExpressionSet from the 2.13 branch ... ### What changes were proposed in this pull request? This PR is a followup on #29598 and removes the `ExpressionSet` class from the 2.13 branch. ### Why are the changes needed? `ExpressionSet` does not extend Scala `Set` anymore and this class is no longer needed in the 2.13 branch. ### Does this PR introduce _any_ user-facing change? No ### How was this patch tested? Passes existing tests Closes #29648 from dbaliafroozeh/RemoveExpressionSetFrom2.13Branch. Authored-by: Ali Afroozeh <ali.afroozeh@databricks.com> Signed-off-by: HyukjinKwon <gurwls223@apache.org>		2020-09-06 09:44:07 +09:00
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main	[SPARK-32800][SQL] Remove ExpressionSet from the 2.13 branch	2020-09-06 09:44:07 +09:00
test	[SPARK-32638][SQL] Corrects references when adding aliases in WidenSetOperationTypes	2020-09-03 14:48:26 +00:00