peter-toth commented on a change in pull request #28885:
URL: https://github.com/apache/spark/pull/28885#discussion_r446633810
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File path: sql/core/src/test/scala/org/apache/spark/sql/SubquerySuite.scala
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@@ -1646,4 +1646,25 @@ class SubquerySuite extends QueryTest with
SharedSparkSession with AdaptiveSpark
checkAnswer(df, df2)
checkAnswer(df, Nil)
}
+
+ test("Subquery reuse across the whole plan") {
+ val df = sql(
Review comment:
Sure, I added the plan in commit:
https://github.com/apache/spark/pull/28885/commits/2b3cde22f62374c25b5748ff2253e168ec4e5d95
Let me know if a sample plan would be beneficial in other test cases too.
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