mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-20 06:32:08 +00:00
43 lines
440 B
MySQL
43 lines
440 B
MySQL
|
SELECT id
|
||
|
|
FROM
|
||
|
|
(
|
||
|
|
SELECT 1 AS id
|
||
|
|
UNION ALL
|
||
|
|
SELECT NULL
|
||
|
|
UNION ALL
|
||
|
|
SELECT NULL
|
||
|
|
)
|
||
|
|
ALL FULL OUTER JOIN
|
||
|
|
(
|
||
|
|
SELECT 1 AS id
|
||
|
|
UNION ALL
|
||
|
|
SELECT NULL
|
||
|
|
UNION ALL
|
||
|
|
SELECT NULL
|
||
|
|
) USING (id)
|
||
|
|
ORDER BY id;
|
||
|
|
|
||
|
|
SELECT '---';
|
||
|
|
|
||
|
|
SELECT *
|
||
|
|
FROM
|
||
|
|
(
|
||
|
|
SELECT NULL AS x
|
||
|
|
)
|
||
|
|
INNER JOIN
|
||
|
|
(
|
||
|
|
SELECT NULL AS x
|
||
|
|
) USING (x);
|
||
|
|
|
||
|
|
SELECT '---';
|
||
|
|
|
||
|
|
SELECT *
|
||
|
|
FROM
|
||
|
|
(
|
||
|
|
SELECT NULL AS x
|
||
|
|
)
|
||
|
|
FULL OUTER JOIN
|
||
|
|
(
|
||
|
|
SELECT NULL AS x
|
||
|
|
) USING (x);
|