cloud-fan commented on a change in pull request #30432:
URL: https://github.com/apache/spark/pull/30432#discussion_r528491493
##########
File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/exchange/ShuffleExchangeExec.scala
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@@ -56,10 +56,27 @@ trait ShuffleExchangeLike extends Exchange {
*/
def numPartitions: Int
+ def partitioningFlexibility: PartitioningFlexibility.Value
+
/**
* Returns whether the shuffle partition number can be changed.
*/
- def canChangeNumPartitions: Boolean
+ def canChangeNumPartitions: Boolean = {
Review comment:
This is more like a util method as implementations don't need to
implement it.
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