cloud-fan commented on a change in pull request #32781:
URL: https://github.com/apache/spark/pull/32781#discussion_r647275744
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File path:
sql/core/src/main/scala/org/apache/spark/sql/execution/adaptive/CustomShuffleReaderRule.scala
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@@ -30,4 +31,12 @@ trait CustomShuffleReaderRule extends Rule[SparkPlan] {
* Returns the list of [[ShuffleOrigin]]s supported by this rule.
*/
def supportedShuffleOrigins: Seq[ShuffleOrigin]
+
+ /**
+ * Whether it is used to coalesce partitions through AQE.
+ */
+ def isUsedToCoalescePartitions(s: ShuffleExchangeLike): Boolean = {
Review comment:
This is too hacky. Let's add a new shuffle origin and include it in
`OptimizeLocalShuffleReader.supportedShuffleOrigins`
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