ClickHouse/tests/queries/0_stateless/00830_join_overwrite.sql

DROP TABLE IF EXISTS kv;

CREATE TABLE kv (k UInt32, v UInt32) ENGINE Join(Any, Left, k);
INSERT INTO kv VALUES (1, 2);
INSERT INTO kv VALUES (1, 3);
SELECT joinGet('kv', 'v', toUInt32(1));
CREATE TABLE kv_overwrite (k UInt32, v UInt32) ENGINE Join(Any, Left, k) SETTINGS join_any_take_last_row = 1;
INSERT INTO kv_overwrite VALUES (1, 2);
INSERT INTO kv_overwrite VALUES (1, 3);
SELECT joinGet('kv_overwrite', 'v', toUInt32(1));


CREATE TABLE t2 (k UInt32, v UInt32) ENGINE = Memory;
INSERT INTO t2 VALUES (1, 2), (1, 3);

SET enable_analyzer = 1;

SELECT v FROM (SELECT 1 as k) t1 ANY INNER JOIN t2 USING (k) SETTINGS join_any_take_last_row = 0;
SELECT v FROM (SELECT 1 as k) t1 ANY INNER JOIN t2 USING (k) SETTINGS join_any_take_last_row = 1;

DROP TABLE kv;
DROP TABLE kv_overwrite;