Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/12342#discussion_r59470693
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
---
@@ -915,41 +913,7 @@ object PushPredicateThroughProject extends
Rule[LogicalPlan] with PredicateHelpe
})
project.copy(child = Filter(replaceAlias(condition, aliasMap),
grandChild))
- }
-
-}
-
-/**
- * Push [[Filter]] operators through [[Generate]] operators. Parts of the
predicate that reference
- * attributes generated in [[Generate]] will remain above, and the rest
should be pushed beneath.
- */
-object PushPredicateThroughGenerate extends Rule[LogicalPlan] with
PredicateHelper {
-
- def apply(plan: LogicalPlan): LogicalPlan = plan transform {
- case filter @ Filter(condition, g: Generate) =>
--- End diff --
This case is included in the UnaryNode case
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