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CREATE TABLE t1(f1 INT, f2 INT); INSERT INTO t1 VALUES (1,1),(2,2),(3,3); CREATE TABLE T1 (f1 INT NOT NULL, f2 INT, f3 VARCHAR(32), PRIMARY KEY(f1), KEY f2_idx(f1), KEY f3_idx(f3)); INSERT INTO T1 VALUES (1, 1, 'qwerty'), (2, 1, 'ytrewq'), (3, 2, 'uiop'), (4, 2, 'poiu'), (5, 2, 'lkjh'), (6, 2, 'uiop'), (7, 2, 'poiu'), (8, 2, 'lkjh'), (9, 2, 'uiop'), (10, 2, 'poiu'), (11, 2, 'lkjh'), (12, 2, 'uiop'), (13, 2, 'poiu'), (14, 2, 'lkjh'); INSERT INTO T1 SELECT f1 + 20, f2, f3 FROM T1; INSERT INTO T1 SELECT f1 + 40, f2, f3 FROM T1; ANALYZE TABLE t1; Table Op Msg_type Msg_text test.t1 analyze status OK ANALYZE TABLE T1; Table Op Msg_type Msg_text test.T1 analyze status OK EXPLAIN SELECT /*+ NO_BNL(t1) */ * FROM t1 t1, T1 T1 WHERE T1.f1 between 1 and 3 AND t1.f2 = T1.f2; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 3 100.00 NULL 1 SIMPLE T1 NULL range PRIMARY,f2_idx PRIMARY 4 NULL 3 10.00 Using where; Using join buffer (Block Nested Loop) Warnings: Note 1003 /* select#1 */ select /*+ NO_BNL(`t1`@`select#1`) */ `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2`,`test`.`T1`.`f1` AS `f1`,`test`.`T1`.`f2` AS `f2`,`test`.`T1`.`f3` AS `f3` from `test`.`t1` join `test`.`T1` where ((`test`.`T1`.`f2` = `test`.`t1`.`f2`) and (`test`.`T1`.`f1` between 1 and 3)) EXPLAIN SELECT /*+ NO_BNL(T1) */ * FROM t1 t1, T1 T1 WHERE T1.f1 between 1 and 3 AND t1.f2 = T1.f2; id select_type table partitions type possible_keys key key_len ref rows filtered Extra 1 SIMPLE t1 NULL ALL NULL NULL NULL NULL 3 100.00 NULL 1 SIMPLE T1 NULL range PRIMARY,f2_idx PRIMARY 4 NULL 3 10.00 Using where Warnings: Note 1003 /* select#1 */ select /*+ NO_BNL(`T1`@`select#1`) */ `test`.`t1`.`f1` AS `f1`,`test`.`t1`.`f2` AS `f2`,`test`.`T1`.`f1` AS `f1`,`test`.`T1`.`f2` AS `f2`,`test`.`T1`.`f3` AS `f3` from `test`.`t1` join `test`.`T1` where ((`test`.`T1`.`f2` = `test`.`t1`.`f2`) and (`test`.`T1`.`f1` between 1 and 3)) DROP TABLE t1, T1;