cloud-fan commented on a change in pull request #32816:
URL: https://github.com/apache/spark/pull/32816#discussion_r691847887
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/AdaptiveSparkPlanExec.scala
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@@ -297,17 +315,26 @@ case class AdaptiveSparkPlanExec(
// plans are updated, we can clear the query stage list because at
this point the two plans
// are semantically and physically in sync again.
val logicalPlan =
replaceWithQueryStagesInLogicalPlan(currentLogicalPlan, stagesToReplace)
- val (newPhysicalPlan, newLogicalPlan) = reOptimize(logicalPlan)
+ val (reOptimizationPhysicalPlan, newLogicalPlan) =
reOptimize(logicalPlan)
Review comment:
I think `reOptimize` should return `(Seq[SparkPlan], LogicalPlan)`, and
here we pick the spark plan with the least cost between the current spark plan
and newPhysicalPlans.
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