Github user dbtsai commented on a diff in the pull request:
https://github.com/apache/spark/pull/21848#discussion_r204509378
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/expressions.scala
---
@@ -403,14 +404,14 @@ object SimplifyConditionals extends Rule[LogicalPlan]
with PredicateHelper {
e.copy(branches = newBranches)
}
- case e @ CaseWhen(branches, _) if branches.headOption.map(_._1) ==
Some(TrueLiteral) =>
+ case CaseWhen(branches, _) if
branches.headOption.map(_._1).contains(TrueLiteral) =>
--- End diff --
Since it's not a bug fix, I guess it's unlikely someone will backport this
:)
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