cloud-fan commented on a change in pull request #25295: [SPARK-28560][SQL]
Optimize shuffle reader to local shuffle reader when smj converted to bhj in
adaptive execution
URL: https://github.com/apache/spark/pull/25295#discussion_r332434571
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/AdaptiveSparkPlanExec.scala
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@@ -74,7 +74,7 @@ case class AdaptiveSparkPlanExec(
@transient private val optimizer = new RuleExecutor[LogicalPlan] {
// TODO add more optimization rules
override protected def batches: Seq[Batch] = Seq(
- Batch("Demote BroadcastHashJoin", Once, DemoteBroadcastHashJoin(conf))
+ // Batch("Demote BroadcastHashJoin", Once, DemoteBroadcastHashJoin(conf))
Review comment:
why disable it?
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