Github user asfgit closed the pull request at:
https://github.com/apache/spark/pull/20375
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Github user mgaido91 commented on a diff in the pull request:
https://github.com/apache/spark/pull/20375#discussion_r163547424
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -1303,8 +1303,12 @@ object RemoveLiteralFromGroupExpr
GitHub user heary-cao opened a pull request:
https://github.com/apache/spark/pull/20375
[SPARK-23199][SQL]improved Removes repetition from group expressions in
Aggregate
## What changes were proposed in this pull request?
Currently, all Aggregate operations will go into
Re