Github user liancheng commented on a diff in the pull request:
https://github.com/apache/spark/pull/13893#discussion_r68556327
--- Diff:
sql/hive/src/test/scala/org/apache/spark/sql/hive/execution/PruningSuite.scala
---
@@ -141,6 +141,14 @@ class PruningSuite extends HiveComparisonTest with
BeforeAndAfter {
Seq("2008-04-08", "11"),
Seq("2008-04-09", "11")))
+ createPruningTest("Partition pruning - with nondeterministic fields",
+ "SELECT value, hr FROM srcpart1 WHERE ds = '2008-04-08' AND rand(7) <
1",
--- End diff --
Good question. I think technically we can't push down any predicates that
are placed after a non-deterministic predicate. Otherwise number of input rows
may change and lead to wrong query results.
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