francis0407 commented on a change in pull request #24344: [SPARK-27440][SQL]
Optimize uncorrelated predicate subquery
URL: https://github.com/apache/spark/pull/24344#discussion_r276538064
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File path: sql/core/src/test/scala/org/apache/spark/sql/SubquerySuite.scala
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@@ -893,7 +893,7 @@ class SubquerySuite extends QueryTest with
SharedSQLContext {
"""
|SELECT * FROM t1
|WHERE
- |NOT EXISTS (SELECT * FROM t1)
+ |NOT EXISTS (SELECT * FROM t1 AS t2 WHERE t2.i = t1.i)
Review comment:
I changed this test because it focuses on correlated subquery which will
rewrite as join.
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