Github user asfgit closed the pull request at:
https://github.com/apache/spark/pull/21853
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Github user maropu commented on a diff in the pull request:
https://github.com/apache/spark/pull/21853#discussion_r204612114
--- Diff: sql/core/src/test/scala/org/apache/spark/sql/SubquerySuite.scala
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@@ -970,4 +973,300 @@ class SubquerySuite extends QueryTest with
Github user maropu commented on a diff in the pull request:
https://github.com/apache/spark/pull/21853#discussion_r204609653
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -164,10 +164,20 @@ abstract class
Github user maropu commented on a diff in the pull request:
https://github.com/apache/spark/pull/21853#discussion_r204609622
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -164,10 +164,20 @@ abstract class
Github user maropu commented on a diff in the pull request:
https://github.com/apache/spark/pull/21853#discussion_r204609532
--- Diff: sql/core/src/test/scala/org/apache/spark/sql/SubquerySuite.scala
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@@ -970,4 +973,300 @@ class SubquerySuite extends QueryTest with
GitHub user dilipbiswal opened a pull request:
https://github.com/apache/spark/pull/21853
[SPARK-23957][SQL] Sorts in subqueries are redundant and can be removed
## What changes were proposed in this pull request?
Thanks to @henryr for the original idea at
