Github user maropu commented on a diff in the pull request:
https://github.com/apache/spark/pull/22141#discussion_r213988466
--- Diff:
sql/core/src/test/resources/sql-tests/inputs/subquery/in-subquery/nested-not-in.sql
---
@@ -0,0 +1,198 @@
+-- Tests NOT-IN subqueries nested inside OR expression(s).
--- End diff --
https://github.com/apache/spark/pull/22141/files#r211835129
To make sure all the results are correct, I also checked that postgresql
had the same output by the queries below.
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