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src/main/scala/org/apache/spark/sql/execution/reuse/ReuseExchangeAndSubquery.scala
case object ReuseExchangeAndSubquery extends Rule[SparkPlan] {def apply(plan: SparkPlan): SparkPlan = {if (conf.exchan
src/main/scala/org/apache/spark/sql/execution/reuse/ReuseExchangeAndSubquery.scala
case object ReuseExchangeAndSubquery extends Rule[SparkPlan] {def apply(plan: SparkPlan): SparkPlan = {if (conf.exchan