Github user yhuai commented on a diff in the pull request:
https://github.com/apache/spark/pull/7446#discussion_r34828810
--- Diff:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/FilterPushdownSuite.scala
---
@@ -146,6 +146,32 @@ class FilterPushdownSuite extends PlanTest {
comparePlans(optimized, correctAnswer)
}
+ test("nondeterministic: can't push down filter through project") {
+ val originalQuery = testRelation
+ .select(Rand(10).as('rand), 'a)
+ .where('rand > 5 && 'a > 5)
--- End diff --
I feel it may require much more changes. I am fine if we do that in a
separate pr in future.
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