cloud-fan commented on a change in pull request #28490:
URL: https://github.com/apache/spark/pull/28490#discussion_r469923244
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala
##########
@@ -1479,6 +1479,33 @@ class Analyzer(
// Skip the having clause here, this will be handled in
ResolveAggregateFunctions.
case h: UnresolvedHaving => h
+ case agg @ (_: Aggregate | _: GroupingSets) =>
+ val resolved = agg.mapExpressions(resolveExpressionTopDown(_, agg))
+ val hasStructField = resolved.expressions.exists {
+ _.collectFirst { case gsf: GetStructField => gsf }.isDefined
+ }
+ if (hasStructField) {
+ // For struct field, it will be resolve as Alias(GetStructField,
name),
+ // In Aggregate/GroupingSets this behavior will cause same struct
field
+ // in aggExprs/groupExprs/selectedGroupByExprs will be resolved
divided
+ // with different ExprId of Alias and replace failed when construct
+ // Aggregate in ResolveGroupingAnalytics, so we resolve duplicated
struct
+ // field here with same ExprId
Review comment:
I don't get it. `CleanupAliases` will remove aliases from the grouping
expressions. Why do we hit the bug?
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
