Github user viirya commented on a diff in the pull request:
https://github.com/apache/spark/pull/17122#discussion_r103838737
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/WholeStageCodegenExec.scala
---
@@ -77,6 +77,10 @@ trait CodegenSupport extends SparkPlan {
*/
final def produce(ctx: CodegenContext, parent: CodegenSupport): String =
executeQuery {
this.parent = parent
+
+ // to track the existence of apply() call in the current
produce-consume cycle
+ // if apply is not called (e.g. in aggregation), we can skip shoudStop
in the inner-most loop
+ parent.shouldStopRequired = false
--- End diff --
Do we need this? The default value of `shouldStopRequired` is already false.
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