ClickHouse/dbms/tests/queries/0_stateless/00549_join_use_nulls.sql
2017-12-25 03:38:45 +03:00

31 lines
503 B
SQL

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;