Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/9844#discussion_r45702258
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
---
@@ -661,7 +666,9 @@ class Analyzer(
val evaluatedOrderings =
resolvedAliasedOrdering.zip(sortOrder).map {
case (evaluated, order) =>
val index = originalAggExprs.indexWhere {
- case Alias(child, _) => child semanticEquals
evaluated.child
+ case a@Alias(child, _) =>
+ (child semanticEquals evaluated.child) ||
+ a.exprId ==
evaluated.child.asInstanceOf[AttributeReference].exprId
case other => other semanticEquals evaluated.child
--- End diff --
I think our optimizer is smart enough to remove unnecessary `Project`, so
we don't need to worry about it here :)
you can change your test case if the plan doesn't match.
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