ClickHouse/dbms/tests/queries/0_stateless/00056_join_number_string.sql

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SELECT left, right FROM
(
SELECT number % 4 AS k1, toString(number % 3) AS k2, number AS left FROM system.numbers LIMIT 10
) js1
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ALL LEFT JOIN
(
SELECT number % 2 AS k1, toString(number % 6) AS k2, number AS right FROM system.numbers LIMIT 10
) js2
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USING k1, k2;