cloud-fan commented on code in PR #37612:
URL: https://github.com/apache/spark/pull/37612#discussion_r955758719
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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/PropagateEmptyRelation.scala:
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@@ -44,6 +45,9 @@ import
org.apache.spark.sql.catalyst.trees.TreePattern.{LOCAL_RELATION, TRUE_OR_
* - Generate(Explode) with all empty children. Others like Hive UDTF may
return results.
*/
abstract class PropagateEmptyRelationBase extends Rule[LogicalPlan] with
CastSupport {
+ // This tag is used to mark a repartition as a root repartition which is
user-specified
Review Comment:
can we make a new PR for this change? It's not only related to AQE.
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