c21 commented on a change in pull request #31595:
URL: https://github.com/apache/spark/pull/31595#discussion_r580032618
##########
File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
##########
@@ -492,12 +492,43 @@ object RemoveRedundantAliases extends Rule[LogicalPlan] {
* Remove no-op operators from the query plan that do not make any
modifications.
*/
object RemoveNoopOperators extends Rule[LogicalPlan] {
+ private def removeAliasOnlyProject(plan: LogicalPlan): LogicalPlan = plan
match {
Review comment:
Also just FYI there's some ongoing change for this same rule -
https://github.com/apache/spark/pull/31538 ,
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