maryannxue commented on a change in pull request #29266:
URL: https://github.com/apache/spark/pull/29266#discussion_r465149665
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/OptimizeSkewedJoin.scala
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@@ -250,6 +251,85 @@ case class OptimizeSkewedJoin(conf: SQLConf) extends
Rule[SparkPlan] {
}
}
+ def optimizeSingleStageSkewJoin(plan: SparkPlan): SparkPlan =
plan.transformUp {
Review comment:
Is it possible to integrate this logic into the two-query-stage skew
processing?
We can just treat the non-query-stage side as "canSplitXXXSide(...) =
false", right?
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