yeshengm commented on a change in pull request #25164: [SPARK-28375] Prevent
the PullupCorrelatedPredicates optimizer rule from removing predicates if run
multiple times
URL: https://github.com/apache/spark/pull/25164#discussion_r304031126
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/subquery.scala
##########
@@ -275,13 +275,16 @@ object PullupCorrelatedPredicates extends
Rule[LogicalPlan] with PredicateHelper
plan transformExpressions {
case ScalarSubquery(sub, children, exprId) if children.nonEmpty =>
val (newPlan, newCond) = pullOutCorrelatedPredicates(sub, outerPlans)
- ScalarSubquery(newPlan, newCond, exprId)
+ val conds = newCond ++ children.filter(_.isInstanceOf[Predicate])
Review comment:
Also, for (2), it won't work for `ListQuery`. As you can see in the source
code, the clause for `ListQuery` is executed even there's no outer reference.
This is important for correctness...
----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
For queries about this service, please contact Infrastructure at:
[email protected]
With regards,
Apache Git Services
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
