bersprockets commented on code in PR #44193:
URL: https://github.com/apache/spark/pull/44193#discussion_r1416546185
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sql/core/src/test/scala/org/apache/spark/sql/SubquerySuite.scala:
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@@ -2735,4 +2735,50 @@ class SubquerySuite extends QueryTest
Row(1, "a", 3) :: Row(2, "a", 3) :: Row(3, "a", 3) :: Nil)
}
}
+
+ test("SPARK-45580: Handle case where a nested subquery becomes an existence
join") {
+ withTempView("t1", "t2", "t3") {
+ Seq((1), (2), (3), (7)).toDF("a").persist().createOrReplaceTempView("t1")
+ Seq((1), (2), (3)).toDF("c1").persist().createOrReplaceTempView("t2")
+ Seq((3), (9)).toDF("col1").persist().createOrReplaceTempView("t3")
+
+ val query1 =
Review Comment:
I mentioned in the description that this particular query will not show the
extraneous boolean column when executed via the Dataset API. However, when
`Utils.isTesting` is true, the `RuleExecutor` will notice that the rule has
changed the query's schema and throw an exception.
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