vranes commented on code in PR #57157:
URL: https://github.com/apache/spark/pull/57157#discussion_r3555309840
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala:
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@@ -1135,6 +1135,17 @@ object ColumnPruning extends Rule[LogicalPlan] {
.map(_._2)
p.copy(child = g.copy(child = newChild, unrequiredChildIndex =
unrequiredIndices))
+ // prune unrequired pass-through columns from child of BinBy.
+ case p @ Project(_, b: BinBy) if p.references != b.outputSet =>
Review Comment:
Makes sense, thanks! Switched to the suggested shape.
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