wangyum commented on a change in pull request #31857:
URL: https://github.com/apache/spark/pull/31857#discussion_r596841781
##########
File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/FilterPushdownSuite.scala
##########
@@ -1384,4 +1384,14 @@ class FilterPushdownSuite extends PlanTest {
condition = Some("x.a".attr === "z.a".attr)).analyze
comparePlans(optimized, correctAnswer)
}
+
+ test("SPARK-28220: Push down the foldable predicate to both sides of Join") {
+ val x = testRelation.subquery('x)
+ val y = testRelation.subquery('y)
+ val originalQuery = x.join(y, condition = Some(false))
Review comment:
ok
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