ClickHouse/tests/queries/0_stateless/00826_cross_to_inner_join.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;