icexelloss commented on a change in pull request #24675: [SPARK-27803][SQL] fix
column pruning for python UDF
URL: https://github.com/apache/spark/pull/24675#discussion_r286623676
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
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@@ -1143,6 +1143,8 @@ object PushDownPredicate extends Rule[LogicalPlan] with
PredicateHelper {
case _: Repartition => true
case _: ScriptTransformation => true
case _: Sort => true
+ case _: BatchEvalPython => true
Review comment:
For my benefit, would you mind explain what does `canPushThrough` define?
Are these nodes that a projection and/or filter can be pushed through?
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