cloud-fan commented on code in PR #49202:
URL: https://github.com/apache/spark/pull/49202#discussion_r1908201493
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala:
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@@ -1281,8 +1281,8 @@ object CollapseProject extends Rule[LogicalPlan] with
AliasHelper {
} else {
true
}
- // Alias and ExtractValue are very cheap.
- case _: Alias | _: ExtractValue => e.children.forall(isCheap)
+ // Alias, ExtractValue and CreateNamedStruct are very cheap.
Review Comment:
create struct is cheap?
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