mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-11-14 03:25:15 +00:00
58 lines
2.7 KiB
SQL
58 lines
2.7 KiB
SQL
SET enable_optimize_predicate_expression = 0;
|
|
|
|
select * from system.one l cross join system.one r;
|
|
|
|
DROP TABLE IF EXISTS t1_00826;
|
|
DROP TABLE IF EXISTS t2_00826;
|
|
|
|
CREATE TABLE t1_00826 (a Int8, b Nullable(Int8)) ENGINE = Memory;
|
|
CREATE TABLE t2_00826 (a Int8, b Nullable(Int8)) ENGINE = Memory;
|
|
|
|
INSERT INTO t1_00826 values (1,1), (2,2);
|
|
INSERT INTO t2_00826 values (1,1), (1,2);
|
|
INSERT INTO t2_00826 (a) values (2), (3);
|
|
|
|
SELECT 'cross';
|
|
SELECT * FROM t1_00826 cross join t2_00826 where t1_00826.a = t2_00826.a;
|
|
SELECT 'cross nullable';
|
|
SELECT * FROM t1_00826 cross join t2_00826 where t1_00826.b = t2_00826.b;
|
|
SELECT 'cross nullable vs not nullable';
|
|
SELECT * FROM t1_00826 cross join t2_00826 where t1_00826.a = t2_00826.b;
|
|
SELECT 'cross self';
|
|
SELECT * FROM t1_00826 x cross join t1_00826 y where x.a = y.a and x.b = y.b;
|
|
SELECT 'cross one table expr';
|
|
SELECT * FROM t1_00826 cross join t2_00826 where t1_00826.a = t1_00826.b order by (t1_00826.a, t2_00826.a, t2_00826.b);
|
|
SELECT 'cross multiple ands';
|
|
SELECT * FROM t1_00826 cross join t2_00826 where t1_00826.a = t2_00826.a and t1_00826.b = t2_00826.b;
|
|
SELECT 'cross and inside and';
|
|
SELECT * FROM t1_00826 cross join t2_00826 where t1_00826.a = t2_00826.a and (t1_00826.b = t2_00826.b and 1);
|
|
SELECT 'cross split conjunction';
|
|
SELECT * FROM t1_00826 cross join t2_00826 where t1_00826.a = t2_00826.a and t1_00826.b = t2_00826.b and t1_00826.a >= 1 and t2_00826.b = 1;
|
|
|
|
SELECT 'comma';
|
|
SELECT * FROM t1_00826, t2_00826 where t1_00826.a = t2_00826.a;
|
|
SELECT 'comma nullable';
|
|
SELECT * FROM t1_00826, t2_00826 where t1_00826.b = t2_00826.b;
|
|
|
|
|
|
SELECT 'cross';
|
|
EXPLAIN SYNTAX SELECT * FROM t1_00826 cross join t2_00826 where t1_00826.a = t2_00826.a;
|
|
SELECT 'cross nullable';
|
|
EXPLAIN SYNTAX SELECT * FROM t1_00826, t2_00826 where t1_00826.a = t2_00826.a;
|
|
SELECT 'cross nullable vs not nullable';
|
|
EXPLAIN SYNTAX SELECT * FROM t1_00826 cross join t2_00826 where t1_00826.a = t2_00826.b;
|
|
SELECT 'cross self';
|
|
EXPLAIN SYNTAX SELECT * FROM t1_00826 x cross join t1_00826 y where x.a = y.a and x.b = y.b;
|
|
SELECT 'cross one table expr';
|
|
EXPLAIN SYNTAX SELECT * FROM t1_00826 cross join t2_00826 where t1_00826.a = t1_00826.b;
|
|
SELECT 'cross multiple ands';
|
|
EXPLAIN SYNTAX SELECT * FROM t1_00826 cross join t2_00826 where t1_00826.a = t2_00826.a and t1_00826.b = t2_00826.b;
|
|
SELECT 'cross and inside and';
|
|
EXPLAIN SYNTAX SELECT * FROM t1_00826 cross join t2_00826 where t1_00826.a = t2_00826.a and (t1_00826.a = t2_00826.a and (t1_00826.a = t2_00826.a and t1_00826.b = t2_00826.b));
|
|
|
|
SELECT 'cross split conjunction';
|
|
EXPLAIN SYNTAX SELECT * FROM t1_00826 cross join t2_00826 where t1_00826.a = t2_00826.a and t1_00826.b = t2_00826.b and t1_00826.a >= 1 and t2_00826.b > 0;
|
|
|
|
DROP TABLE t1_00826;
|
|
DROP TABLE t2_00826;
|