zml1206 commented on code in PR #49202:
URL: https://github.com/apache/spark/pull/49202#discussion_r1893738312


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sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala:
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@@ -1831,8 +1838,8 @@ object PushPredicateThroughNonJoin extends 
Rule[LogicalPlan] with PredicateHelpe
       }
 
       if (pushDown.nonEmpty) {
-        val pushDownPredicate = pushDown.reduce(And)

Review Comment:
   What I mean is that when cross-plan-nodes expression sharing is not 
supported, after the pushdown is completed and before rewriteWith, the with in 
the same filter can be merged.



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