dongjoon-hyun commented on a change in pull request #30790:
URL: https://github.com/apache/spark/pull/30790#discussion_r545495030
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/expressions.scala
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@@ -528,6 +528,28 @@ object SimplifyConditionals extends Rule[LogicalPlan] with
PredicateHelper {
}
+/**
+ * Push the foldable expression into (if / case) branches.
+ */
+object PushFoldableIntoBranches extends Rule[LogicalPlan] with PredicateHelper
{
Review comment:
Nice idea.
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