peter-toth commented on a change in pull request #31913:
URL: https://github.com/apache/spark/pull/31913#discussion_r599579148
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/grouping.scala
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@@ -155,3 +155,21 @@ object GroupingID {
if (SQLConf.get.integerGroupingIdEnabled) IntegerType else LongType
}
}
+
+/**
+ * Wrapper expression to avoid further optimizations between the parent and
child of this
+ * expression.
+ */
+case class GroupingExpression(child: Expression) extends UnaryExpression {
Review comment:
Thanks, I think it is. Changed in
https://github.com/apache/spark/pull/31913/commits/6e05f14c1a21e2894c1a4a85546a790189a43f5a
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