beliefer commented on a change in pull request #29135:
URL: https://github.com/apache/spark/pull/29135#discussion_r456359546
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/RewriteDistinctAggregates.scala
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@@ -226,7 +226,10 @@ object RewriteDistinctAggregates extends Rule[LogicalPlan]
{
val naf = patchAggregateFunctionChildren(af) { x =>
distinctAggChildAttrLookup.get(x).map(evalWithinGroup(id, _))
}
- (e, e.copy(aggregateFunction = naf, isDistinct = false))
+ val filterOpt = e.filter.map(_.transform {
+ case a: Attribute => distinctAggChildAttrLookup.getOrElse(a, a)
Review comment:
Because `RewriteDistinctAggregates` will create new attr to replace
attr, so we need to update the attr in filter clause with the new one.
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