cloud-fan commented on code in PR #46443:
URL: https://github.com/apache/spark/pull/46443#discussion_r1596840882
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/With.scala:
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@@ -92,6 +95,21 @@ object With {
val commonExprRefs = commonExprDefs.map(new CommonExpressionRef(_))
With(replaced(commonExprRefs), commonExprDefs)
}
+
+ private[sql] def childContainsUnsupportedAggExpr(withExpr: With): Boolean = {
+ lazy val commonExprIds = withExpr.defs.map(_.id).toSet
+ withExpr.child.exists {
+ case agg: AggregateExpression =>
Review Comment:
nit: ideally we can stop the traversal after hitting `AggregateExpression`
because there can't be nested `AggregateExpression`. This requires to write a
manual top down recursion instead of using `.exist`.
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