chenzhx commented on a change in pull request #35660:
URL: https://github.com/apache/spark/pull/35660#discussion_r814881466
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/plans/QueryPlan.scala
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@@ -327,16 +323,7 @@ abstract class QueryPlan[PlanType <: QueryPlan[PlanType]]
val existingAttrMappingSet = transferAttrMapping.map(_._2).toSet
newValidAttrMapping.filterNot { case (_, a) =>
existingAttrMappingSet.contains(a) }
}
- val resultAttrMapping = if (canGetOutput(plan)) {
Review comment:
But if keep the logic, it may lose the elements that the upper layer
needs to use.
Do you have other ideas？
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