maropu commented on a change in pull request #29614:
URL: https://github.com/apache/spark/pull/29614#discussion_r482759737
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/EliminateJoinToEmptyRelation.scala
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@@ -36,22 +37,42 @@ import
org.apache.spark.sql.execution.joins.{EmptyHashedRelation, HashedRelation
*/
object EliminateJoinToEmptyRelation extends Rule[LogicalPlan] {
- private def canEliminate(plan: LogicalPlan, relation: HashedRelation):
Boolean = plan match {
- case LogicalQueryStage(_, stage: BroadcastQueryStageExec) if
stage.resultOption.get().isDefined
- && stage.broadcast.relationFuture.get().value == relation => true
- case _ => false
+ private def canEliminate(
+ streamedPlan: LogicalPlan,
+ buildPlan: LogicalPlan,
+ relation: HashedRelation): Boolean = {
+ // If streamedSide of the Join contains
ShuffleQueryStageExec(canChangeNumPartitions== false)
Review comment:
nit: `canChangeNumPartitions== false` => `canChangeNumPartitions ==
false`
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