kazuyukitanimura commented on a change in pull request #33930:
URL: https://github.com/apache/spark/pull/33930#discussion_r742355019
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/expressions.scala
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@@ -446,6 +446,53 @@ object BooleanSimplification extends Rule[LogicalPlan]
with PredicateHelper {
}
+/**
+ * Move/Push `Not` operator if it's beneficial.
Review comment:
This optimization is actually more than just the case where leaf nodes
are boolean or null. So in that sense, the generic name should be okay.
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