Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/11745#discussion_r56743896
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
---
@@ -91,6 +92,10 @@ abstract class Optimizer extends
RuleExecutor[LogicalPlan] {
SimplifyCasts,
SimplifyCaseConversionExpressions,
EliminateSerialization) ::
+ // Because ColumnPruning is called after PushPredicateThroughProject,
the predicate push down
+ // is reversed. This batch is to ensure Filter is pushed below
Project, if possible.
+ Batch("Push Predicate Through Project", Once,
+ PushPredicateThroughProject) ::
--- End diff --
Put this role in a separate batch is not correct, some other filter push
down rules depend on this one.
---
If your project is set up for it, you can reply to this email and have your
reply appear on GitHub as well. If your project does not have this feature
enabled and wishes so, or if the feature is enabled but not working, please
contact infrastructure at [email protected] or file a JIRA ticket
with INFRA.
---
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
