ClickHouse/tests/queries/0_stateless/02564_analyzer_cross_to_inner.sql

SET allow_experimental_analyzer = 1;

DROP TABLE IF EXISTS t1;
DROP TABLE IF EXISTS t2;
DROP TABLE IF EXISTS t3;

CREATE TABLE t1 (a UInt64, b UInt64) ENGINE = Memory;
INSERT INTO t1 VALUES (1, 2), (3, 4), (5, 6);

CREATE TABLE t2 (a UInt64, b UInt64) ENGINE = Memory;
INSERT INTO t2 VALUES (3, 4), (5, 6), (7, 8);

CREATE TABLE t3 (a UInt64, b UInt64) ENGINE = Memory;
INSERT INTO t3 VALUES (5, 6), (7, 8), (9, 10);

SET cross_to_inner_join_rewrite = 1;

SELECT * FROM t1, t2, (SELECT a as x from t3 where a + 1 = b ) as t3
WHERE t1.a = if(t2.b > 0, t2.a, 0) AND t2.a = t3.x AND 1
;

SELECT * FROM t1, t2, (SELECT a as x from t3 where a + 1 = b ) as t3
WHERE t1.a = if(t2.b > 0, t2.a, 0)
ORDER BY t1.a, t2.a, t3.x
;

-- { echoOn }

EXPLAIN QUERY TREE
SELECT * FROM t1, t2, (SELECT a as x from t3 where a + 1 = b ) as t3
WHERE t1.a = if(t2.b > 0, t2.a, 0) AND t2.a = t3.x AND 1;

EXPLAIN QUERY TREE
SELECT * FROM t1, t2, (SELECT a as x from t3 where a + 1 = b ) as t3
WHERE t1.a = if(t2.b > 0, t2.a, 0) AND t2.a = t3.x AND 1
SETTINGS cross_to_inner_join_rewrite = 0;

EXPLAIN QUERY TREE
SELECT * FROM t1, t2, (SELECT a as x from t3 where a + 1 = b ) as t3
WHERE t1.a = if(t2.b > 0, t2.a, 0);

-- { echoOff }

SELECT * FROM t1, t2, (SELECT a as x from t3 where a + 1 = b ) as t3
WHERE t1.a = if(t2.b > 0, t2.a, 0)
SETTINGS cross_to_inner_join_rewrite = 2; -- { serverError INCORRECT_QUERY }

DROP TABLE IF EXISTS t1;
DROP TABLE IF EXISTS t2;
DROP TABLE IF EXISTS t3;