Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/23079#discussion_r234639734
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/expressions.scala
---
@@ -767,6 +767,15 @@ object ReplaceNullWithFalse extends Rule[LogicalPlan] {
replaceNullWithFalse(cond) -> value
}
cw.copy(branches = newBranches)
+ case af @ ArrayFilter(_, lf @ LambdaFunction(func, _, _)) =>
--- End diff --
ah i see. Sorry I missed it. Then it's safer to use a white-list here.
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