cloud-fan commented on a change in pull request #26813: [SPARK-30188][SQL][WIP]
Enable adaptive query execution by default
URL: https://github.com/apache/spark/pull/26813#discussion_r362016370
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/InsertAdaptiveSparkPlan.scala
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@@ -45,11 +48,33 @@ case class InsertAdaptiveSparkPlan(session: SparkSession)
extends Rule[SparkPlan
// Exchange-reuse is shared across the entire query, including sub-queries.
private val stageCache = new TrieMap[SparkPlan, QueryStageExec]()
+ private def needShuffle(plan: SparkPlan): Boolean = plan match {
+ case _: BroadcastHashJoinExec => true
+ case _: BroadcastNestedLoopJoinExec => true
+ case _: CoGroupExec => true
+ case _: GlobalLimitExec => true
+ case _: HashAggregateExec => true
+ case _: ObjectHashAggregateExec => true
+ case _: ShuffledHashJoinExec => true
+ case _: SortAggregateExec => true
+ case _: SortExec => true
+ case _: SortMergeJoinExec => true
+ case _: Exchange => true
+ case _ => false
+ }
+
+ def whetherContainShuffle(plan: SparkPlan): Boolean = {
+ plan.collect {
Review comment:
nit: `find` is better here
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