gczsjdy 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_r302819612
 
 

 ##########
 File path: 
sql/core/src/main/scala/org/apache/spark/sql/execution/exchange/ShuffleExchangeExec.scala
 ##########
 @@ -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:
   +1

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