Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/12057#discussion_r57993507
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/python/ExtractPythonUDFs.scala
---
@@ -47,10 +49,9 @@ private[spark] object ExtractPythonUDFs extends
Rule[LogicalPlan] {
}
}
- private def collectEvaluatableUDF(expr: Expression): Seq[PythonUDF] = {
- expr.collect {
- case udf: PythonUDF if canEvaluateInPython(udf) => udf
- }
+ private def collectEvaluatableUDF(expr: Expression): Seq[PythonUDF] =
expr match {
--- End diff --
`expr.collect` will collect those PythonUDF even the parent is already
collected.
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