dongjoon-hyun commented on a change in pull request #24049: [SPARK-27123][SQL]
Improve CollapseProject to handle projects cross limit/repartition/sample
URL: https://github.com/apache/spark/pull/24049#discussion_r265207286
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
##########
@@ -699,6 +699,24 @@ object CollapseProject extends Rule[LogicalPlan] {
agg.copy(aggregateExpressions = buildCleanedProjectList(
p.projectList, agg.aggregateExpressions))
}
+ case p1 @ Project(_, g @ GlobalLimit(_, l @ LocalLimit(_, p2: Project))) =>
Review comment:
@cloud-fan . `isRenaming` use `semanticEquals`. Case 2 will be prevented.
I'll make a PR soon.
----------------------------------------------------------------
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]
