cloud-fan commented on a change in pull request #29224:
URL: https://github.com/apache/spark/pull/29224#discussion_r471335818
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/AdaptiveSparkPlanExec.scala
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@@ -90,7 +90,7 @@ case class AdaptiveSparkPlanExec(
// Exchange nodes) after running these rules.
private def queryStagePreparationRules: Seq[Rule[SparkPlan]] = Seq(
ensureRequirements
- )
+ ) ++ context.session.sessionState.queryStagePrepRules
Review comment:
The custom rules may need to see exchange nodes as well. We can do
validation at the end to make sure exchange requirements are still required.
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