Github user cloud-fan commented on a diff in the pull request:
https://github.com/apache/spark/pull/17928#discussion_r115913870
--- Diff: sql/core/src/test/resources/sql-tests/inputs/inline-table.sql ---
@@ -49,3 +49,6 @@ select * from values ("one", count(1)), ("two", 2) as
data(a, b);
-- string to timestamp
select * from values (timestamp('1991-12-06 00:00:00.0'),
array(timestamp('1991-12-06 01:00:00.0'), timestamp('1991-12-06 12:00:00.0')))
as data(a, b);
+
+-- cross-join inline tables
+SELECT * FROM VALUES ('one', 1), ('three', null) CROSS JOIN VALUES ('one',
1), ('three', null);
--- End diff --
does this expose the bug? If we treat CROSS as an alias, we still the same
result. how about we run EXPLAIN?
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