mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-27 01:51:59 +00:00
27 lines
1.0 KiB
SQL
27 lines
1.0 KiB
SQL
SET join_algorithm = 'auto';
|
|
SET max_bytes_in_join = 100;
|
|
|
|
DROP TABLE IF EXISTS t;
|
|
DROP TABLE IF EXISTS nr;
|
|
|
|
CREATE TABLE t (`x` UInt32, `s` LowCardinality(String)) ENGINE = Memory;
|
|
CREATE TABLE nr (`x` Nullable(UInt32), `s` Nullable(String)) ENGINE = Memory;
|
|
|
|
INSERT INTO t VALUES (1, 'l');
|
|
INSERT INTO nr VALUES (2, NULL);
|
|
|
|
SET join_use_nulls = 0;
|
|
|
|
SELECT t.x, l.s, r.s, toTypeName(l.s), toTypeName(r.s) FROM t AS l LEFT JOIN nr AS r USING (x) ORDER BY t.x;
|
|
SELECT t.x, l.s, r.s, toTypeName(l.s), toTypeName(r.s) FROM t AS l RIGHT JOIN nr AS r USING (x) ORDER BY t.x;
|
|
SELECT t.x, l.s, r.s, toTypeName(l.s), toTypeName(r.s) FROM t AS l FULL JOIN nr AS r USING (x) ORDER BY t.x;
|
|
|
|
SELECT '-';
|
|
|
|
SELECT t.x, l.s, r.s, toTypeName(l.s), toTypeName(r.s) FROM nr AS l LEFT JOIN t AS r USING (x) ORDER BY t.x;
|
|
SELECT t.x, l.s, r.s, toTypeName(l.s), toTypeName(r.s) FROM nr AS l RIGHT JOIN t AS r USING (x) ORDER BY t.x;
|
|
SELECT t.x, l.s, r.s, toTypeName(l.s), toTypeName(r.s) FROM nr AS l FULL JOIN t AS r USING (x) ORDER BY t.x;
|
|
|
|
DROP TABLE t;
|
|
DROP TABLE nr;
|