Github user davies commented on a diff in the pull request:
https://github.com/apache/spark/pull/16193#discussion_r91394979
--- Diff:
sql/core/src/main/scala/org/apache/spark/sql/execution/python/ExtractPythonUDFs.scala
---
@@ -166,3 +174,40 @@ object ExtractPythonUDFs extends Rule[SparkPlan] {
}
}
}
+
+// This rule is to push deterministic predicates through
BatchEvalPythonExec
+object PushPredicateThroughBatchEvalPython extends Rule[SparkPlan] with
PredicateHelper {
--- End diff --
Having a predicate-pushdown rule for SparkPlan sounds bad, can we try to do
this in extract()? for example
```
val splittedFilter = trySplitFilter(plan)
val newChildren = splittedFilter.children.map { child =>
}
```
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