mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-05 23:31:24 +00:00
49 lines
2.1 KiB
SQL
49 lines
2.1 KiB
SQL
DROP TABLE IF EXISTS t;
|
|
DROP TABLE IF EXISTS nt;
|
|
|
|
CREATE TABLE t (x String) ENGINE = Memory;
|
|
CREATE TABLE nt (x Nullable(String)) ENGINE = Memory;
|
|
|
|
INSERT INTO t (x) VALUES ('id'), ('1');
|
|
INSERT INTO nt (x) VALUES ('id'), (NULL), ('1');
|
|
|
|
SET join_use_nulls = 1;
|
|
|
|
SELECT 'on';
|
|
|
|
SELECT 'n rj n', t1.x, t2.x FROM nt AS t1 RIGHT JOIN nt AS t2 ON t1.x = t2.x ORDER BY t1.x;
|
|
SELECT 'n fj n', t1.x, t2.x FROM nt AS t1 FULL JOIN nt AS t2 ON t1.x = t2.x ORDER BY t1.x;
|
|
|
|
SELECT 't rj n', t1.x, t2.x FROM t AS t1 RIGHT JOIN nt AS t2 ON t1.x = t2.x ORDER BY t1.x;
|
|
SELECT 't fj n', t1.x, t2.x FROM t AS t1 FULL JOIN nt AS t2 ON t1.x = t2.x ORDER BY t1.x;
|
|
|
|
SELECT 'n rj t', t1.x, t2.x FROM nt AS t1 RIGHT JOIN t AS t2 ON t1.x = t2.x ORDER BY t1.x;
|
|
SELECT 'n fj t', t1.x, t2.x FROM nt AS t1 FULL JOIN t AS t2 ON t1.x = t2.x ORDER BY t1.x;
|
|
|
|
SELECT 'using';
|
|
|
|
SELECT 'n rj n', t1.x, t2.x FROM nt AS t1 RIGHT JOIN nt AS t2 USING(x) ORDER BY t1.x;
|
|
SELECT 'n fj n', t1.x, t2.x FROM nt AS t1 FULL JOIN nt AS t2 USING(x) ORDER BY t1.x;
|
|
|
|
SELECT 't rj n', t1.x, t2.x FROM t AS t1 RIGHT JOIN nt AS t2 USING(x) ORDER BY t1.x;
|
|
SELECT 't fj n', t1.x, t2.x FROM t AS t1 FULL JOIN nt AS t2 USING(x) ORDER BY t1.x;
|
|
|
|
SELECT 'n rj t', t1.x, t2.x FROM nt AS t1 RIGHT JOIN t AS t2 USING(x) ORDER BY t1.x;
|
|
SELECT 'n fj t', t1.x, t2.x FROM nt AS t1 FULL JOIN t AS t2 USING(x) ORDER BY t1.x;
|
|
|
|
|
|
INSERT INTO nt (x) SELECT NULL as x FROM numbers(1000);
|
|
|
|
SELECT sum(isNull(t1.x)), count(t1.x) FROM nt AS t1 INNER JOIN nt AS t2 ON t1.x = t2.x;
|
|
SELECT sum(isNull(t1.x)), count(t1.x) FROM nt AS t1 LEFT JOIN nt AS t2 ON t1.x = t2.x;
|
|
SELECT sum(isNull(t1.x)), count(t1.x) FROM nt AS t1 RIGHT JOIN nt AS t2 ON t1.x = t2.x;
|
|
SELECT sum(isNull(t1.x)), count(t1.x) FROM nt AS t1 FULL JOIN nt AS t2 ON t1.x = t2.x;
|
|
|
|
SELECT sum(isNull(t1.x)), count(t1.x) FROM nt AS t1 INNER JOIN nt AS t2 USING(x);
|
|
SELECT sum(isNull(t1.x)), count(t1.x) FROM nt AS t1 LEFT JOIN nt AS t2 USING(x);
|
|
SELECT sum(isNull(t1.x)), count(t1.x) FROM nt AS t1 RIGHT JOIN nt AS t2 USING(x);
|
|
SELECT sum(isNull(t1.x)), count(t1.x) FROM nt AS t1 FULL JOIN nt AS t2 USING(x);
|
|
|
|
DROP TABLE t;
|
|
DROP TABLE nt;
|