cloud-fan commented on a change in pull request #25121: [SPARK-28356][SQL] Do
not reduce the number of partitions for repartition in adaptive execution
URL: https://github.com/apache/spark/pull/25121#discussion_r302811166
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/exchange/ShuffleExchangeExec.scala
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@@ -43,7 +43,8 @@ import
org.apache.spark.util.collection.unsafe.sort.{PrefixComparators, RecordCo
*/
case class ShuffleExchangeExec(
override val outputPartitioning: Partitioning,
- child: SparkPlan) extends Exchange {
+ child: SparkPlan,
+ supportAdaptive: Boolean = true) extends Exchange {
Review comment:
if we remove the config, I'd probably call this `canChangeNumPartition`
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