mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-22 15:42:02 +00:00
31 lines
503 B
MySQL
31 lines
503 B
MySQL
|
SET join_use_nulls = 1;
|
||
|
|
|
||
|
|
DROP TABLE IF EXISTS test.null;
|
||
|
|
CREATE TABLE test.null (k UInt64, a String, b Nullable(String)) ENGINE = Log;
|
||
|
|
|
||
|
|
INSERT INTO test.null SELECT
|
||
|
|
k,
|
||
|
|
a,
|
||
|
|
b
|
||
|
|
FROM
|
||
|
|
(
|
||
|
|
SELECT
|
||
|
|
number AS k,
|
||
|
|
toString(number) AS a
|
||
|
|
FROM system.numbers
|
||
|
|
LIMIT 2
|
||
|
|
)
|
||
|
|
ANY LEFT JOIN
|
||
|
|
(
|
||
|
|
SELECT
|
||
|
|
number AS k,
|
||
|
|
toString(number) AS b
|
||
|
|
FROM system.numbers
|
||
|
|
LIMIT 1, 2
|
||
|
|
) USING (k)
|
||
|
|
ORDER BY k ASC;
|
||
|
|
|
||
|
|
SELECT * FROM test.null ORDER BY k, a, b;
|
||
|
|
|
||
|
|
DROP TABLE test.null;
|