hemanthboyina commented on code in PR #58544:
URL: https://github.com/apache/spark/pull/58544#discussion_r4247005276
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala:
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@@ -3626,6 +3628,16 @@ class Analyzer(
extractedExprMap.getOrElseUpdate(agg.canonicalized,
Alias(agg, s"_w${extractedExprMap.size}")()).toAttribute
+ // Extracts a non-window sub-expression that matches a grouping
expression as a whole
+ // (e.g. UPPER(country) when the query groups by UPPER(country)).
Without this, the
+ // transform would descend into it and extract its underlying
attributes (e.g. country),
+ // which are not part of the GROUP BY clause and would make the
child Aggregate invalid
+ // (SPARK-59175). Bare grouping attributes are left to the
`Attribute` case below.
+ case e: Expression
+ if !e.isInstanceOf[Attribute] && !e.foldable &&
!hasWindowFunction(e) &&
+ groupExpressions.exists(_.semanticEquals(e)) =>
Review Comment:
done
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