Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/22205#discussion_r213113632
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
---
@@ -1349,6 +1353,12 @@ object ConvertToLocalRelation extends
Rule[LogicalPlan] {
case Limit(IntegerLiteral(limit), LocalRelation(output, data,
isStreaming)) =>
LocalRelation(output, data.take(limit), isStreaming)
+
+ case Filter(condition, LocalRelation(output, data, isStreaming))
+ if !hasUnevaluableExpr(condition) =>
--- End diff --
I am fine about introducing this change since we already did it in
Project(LocalRelation).
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