viirya commented on code in PR #38557:
URL: https://github.com/apache/spark/pull/38557#discussion_r1017316276
##########
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala:
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@@ -320,6 +320,9 @@ abstract class Optimizer(catalogManager: CatalogManager)
}
def apply(plan: LogicalPlan): LogicalPlan =
plan.transformAllExpressionsWithPruning(
_.containsPattern(PLAN_EXPRESSION), ruleId) {
+ // Do not optimize DPP subquery, as it was created from optimized plan
and we should not
+ // optimize it again, to save optimization time and avoid breaking
broadcast/subquery reuse.
+ case d: DynamicPruningSubquery => d
Review Comment:
This makes sense. Just wondering that is this particularly related to
SPARK-38959?
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