Github user hvanhovell commented on a diff in the pull request:
https://github.com/apache/spark/pull/19362#discussion_r141275477
--- Diff: sql/core/src/test/scala/org/apache/spark/sql/JoinSuite.scala ---
@@ -200,6 +200,30 @@ class JoinSuite extends QueryTest with
SharedSQLContext {
Nil)
}
+ test("inner join, propagate empty relation before checking Cartesian
products") {
--- End diff --
It make make the test more concise if you just test the various join in a
single test.
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