viirya commented on code in PR #39248:
URL: https://github.com/apache/spark/pull/39248#discussion_r1058750103
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/InterpretedMutableProjection.scala:
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@@ -117,10 +111,6 @@ object InterpretedMutableProjection {
* Returns a [[MutableProjection]] for given sequence of bound Expressions.
*/
def createProjection(exprs: Seq[Expression]): MutableProjection = {
- // We need to make sure that we do not reuse stateful expressions.
- val cleanedExpressions = exprs.map(_.transform {
- case s: Stateful => s.freshCopy()
Review Comment:
Oh, this is a nice catch!
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