Github user gatorsmile commented on a diff in the pull request:
https://github.com/apache/spark/pull/19494#discussion_r145219348
--- Diff:
sql/core/src/test/scala/org/apache/spark/sql/execution/columnar/InMemoryColumnarQuerySuite.scala
---
@@ -429,4 +429,19 @@ class InMemoryColumnarQuerySuite extends QueryTest
with SharedSQLContext {
checkAnswer(agg_without_cache, agg_with_cache)
}
}
+
+ test("SPARK-22249: IN should work also with cached DataFrame") {
--- End diff --
This test case is just an end-to-end test. This test will still pass if the
optimizer has a change. We also need a unit test case.
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