allisonwang-db commented on code in PR #42383:
URL: https://github.com/apache/spark/pull/42383#discussion_r1301949906


##########
sql/core/src/test/resources/sql-tests/inputs/subquery/exists-subquery/exists-aggregate.sql:
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@@ -118,3 +118,10 @@ WHERE  NOT EXISTS (SELECT 1
                                       FROM   dept 
                                       WHERE  emp.dept_id = dept.dept_id 
                                       GROUP  BY dept.dept_id));
+
+-- Window functions are not supported in EXISTS subqueries yet

Review Comment:
   Do we plan to make IN and EXISTS subqueries also use the new decorrelation 
framework?



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