Github user dongjoon-hyun commented on a diff in the pull request:
https://github.com/apache/spark/pull/13087#discussion_r64002341
--- Diff:
sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/optimizer/Optimizer.scala
---
@@ -1025,7 +1025,8 @@ object PushDownPredicate extends Rule[LogicalPlan]
with PredicateHelper {
// state and all the input rows processed before. In another word, the
order of input rows
// matters for non-deterministic expressions, while pushing down
predicates changes the order.
case filter @ Filter(condition, project @ Project(fields, grandChild))
- if fields.forall(_.deterministic) =>
+ if fields.forall(_.deterministic) &&
+ fields.forall(_.find(_.isInstanceOf[ScalaUDF]).isEmpty) =>
--- End diff --
Great! No problem. I will try to fix other testsuite correctly.
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