yql/essentials/tests/sql/suites/select_yql/join_implicit_using_ambiguity_key.yql


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/* custom error: Column reference is ambiguous: a */
PRAGMA YqlSelect = 'force';

SELECT * FROM (VALUES (1, 2)) AS x (a, cx)
JOIN (VALUES (1, 3)) AS y (a, cy)
ON a == a;