DROP TABLE IF EXISTS t1; CREATE TABLE t1(c1 TINYINT NOT NULL AUTO_INCREMENT PRIMARY KEY); INSERT INTO t1 VALUES (null),(null),(null),(null),(null),(null); DELETE FROM t1 WHERE c1 >= 3; SELECT * FROM t1 ORDER BY c1; c1 1 2 INSERT INTO t1 VALUES (null),(null),(null); SELECT * FROM t1 ORDER BY c1; c1 1 2 7 8 9 DELETE FROM t1 ; SELECT * FROM t1 ORDER BY c1; c1 INSERT INTO t1 VALUES (null),(null),(null); SELECT * FROM t1 ORDER BY c1; c1 10 11 12 DROP TABLE t1; CREATE TABLE t1(c1 SMALLINT NOT NULL AUTO_INCREMENT PRIMARY KEY); INSERT INTO t1 VALUES (null),(null),(null),(null),(null),(null); DELETE FROM t1 WHERE c1 >= 3; SELECT * FROM t1 ORDER BY c1; c1 1 2 INSERT INTO t1 VALUES (null),(null),(null); SELECT * FROM t1 ORDER BY c1; c1 1 2 7 8 9 DELETE FROM t1 ; SELECT * FROM t1 ORDER BY c1; c1 INSERT INTO t1 VALUES (null),(null),(null); SELECT * FROM t1 ORDER BY c1; c1 10 11 12 DROP TABLE t1; CREATE TABLE t1(c1 MEDIUMINT NOT NULL AUTO_INCREMENT PRIMARY KEY); INSERT INTO t1 VALUES (null),(null),(null),(null),(null),(null); DELETE FROM t1 WHERE c1 >= 3; SELECT * FROM t1 ORDER BY c1; c1 1 2 INSERT INTO t1 VALUES (null),(null),(null); SELECT * FROM t1 ORDER BY c1; c1 1 2 7 8 9 DELETE FROM t1 ; SELECT * FROM t1 ORDER BY c1; c1 INSERT INTO t1 VALUES (null),(null),(null); SELECT * FROM t1 ORDER BY c1; c1 10 11 12 DROP TABLE t1; CREATE TABLE t1(c1 INT NOT NULL AUTO_INCREMENT PRIMARY KEY); INSERT INTO t1 VALUES (null),(null),(null),(null),(null),(null); DELETE FROM t1 WHERE c1 >= 3; SELECT * FROM t1 ORDER BY c1; c1 1 2 INSERT INTO t1 VALUES (null),(null),(null); SELECT * FROM t1 ORDER BY c1; c1 1 2 7 8 9 DELETE FROM t1 ; SELECT * FROM t1 ORDER BY c1; c1 INSERT INTO t1 VALUES (null),(null),(null); SELECT * FROM t1 ORDER BY c1; c1 10 11 12 DROP TABLE t1; CREATE TABLE t1(c1 INTEGER NOT NULL AUTO_INCREMENT PRIMARY KEY); INSERT INTO t1 VALUES (null),(null),(null),(null),(null),(null); DELETE FROM t1 WHERE c1 >= 3; SELECT * FROM t1 ORDER BY c1; c1 1 2 INSERT INTO t1 VALUES (null),(null),(null); SELECT * FROM t1 ORDER BY c1; c1 1 2 7 8 9 DELETE FROM t1 ; SELECT * FROM t1 ORDER BY c1; c1 INSERT INTO t1 VALUES (null),(null),(null); SELECT * FROM t1 ORDER BY c1; c1 10 11 12 DROP TABLE t1; CREATE TABLE t1(c1 BIGINT NOT NULL AUTO_INCREMENT PRIMARY KEY); INSERT INTO t1 VALUES (null),(null),(null),(null),(null),(null); DELETE FROM t1 WHERE c1 >= 3; SELECT * FROM t1 ORDER BY c1; c1 1 2 INSERT INTO t1 VALUES (null),(null),(null); SELECT * FROM t1 ORDER BY c1; c1 1 2 7 8 9 DELETE FROM t1 ; SELECT * FROM t1 ORDER BY c1; c1 INSERT INTO t1 VALUES (null),(null),(null); SELECT * FROM t1 ORDER BY c1; c1 10 11 12 DROP TABLE t1;