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select * from information_schema.engines where engine='sequence'; ENGINE SEQUENCE SUPPORT YES COMMENT Generated tables filled with sequential values TRANSACTIONS YES XA NO SAVEPOINTS YES set sql_quote_show_create=0; show create table seq_1_to_15_step_2; Table Create Table seq_1_to_15_step_2 CREATE TABLE seq_1_to_15_step_2 ( seq bigint(20) unsigned NOT NULL, PRIMARY KEY (seq) ) ENGINE=SEQUENCE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci show create table seq_1_to_15_step; ERROR 42S02: Table 'test.seq_1_to_15_step' doesn't exist show create table seq_1_to_15_st; ERROR 42S02: Table 'test.seq_1_to_15_st' doesn't exist show create table seq_1_to_15; Table Create Table seq_1_to_15 CREATE TABLE seq_1_to_15 ( seq bigint(20) unsigned NOT NULL, PRIMARY KEY (seq) ) ENGINE=SEQUENCE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci show create table seq_1_to_1; Table Create Table seq_1_to_1 CREATE TABLE seq_1_to_1 ( seq bigint(20) unsigned NOT NULL, PRIMARY KEY (seq) ) ENGINE=SEQUENCE DEFAULT CHARSET=latin1 COLLATE=latin1_swedish_ci show create table seq_1_to_; ERROR 42S02: Table 'test.seq_1_to_' doesn't exist show create table seq_1_t; ERROR 42S02: Table 'test.seq_1_t' doesn't exist show create table seq_1; ERROR 42S02: Table 'test.seq_1' doesn't exist show create table seq_; ERROR 42S02: Table 'test.seq_' doesn't exist show create table se; ERROR 42S02: Table 'test.se' doesn't exist show create table seq_1_to_15_step_0; ERROR HY000: Got error 140 "Wrong create options" from storage engine SEQUENCE show create table `seq_-1_to_15`; ERROR 42S02: Table 'test.seq_-1_to_15' doesn't exist show create table `seq_1_to_+2`; ERROR 42S02: Table 'test.seq_1_to_+2' doesn't exist select * from seq_1_to_15_step_2; seq 1 3 5 7 9 11 13 15 select * from seq_1_to_15; seq 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 select * from seq_1_to_1; seq 1 select * from seq_15_to_1; seq 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 select * from seq_15_to_1_step_2; seq 15 13 11 9 7 5 3 1 select * from seq_1_to_15_step_12345; seq 1 select * from seq_15_to_1_step_12345; seq 15 explain select * from seq_15_to_1_step_12345; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE seq_15_to_1_step_12345 ALL NULL NULL NULL NULL 1 show open tables from test; Database Table In_use Name_locked test seq_15_to_1 0 0 test seq_15_to_1_step_12345 0 0 test seq_15_to_1_step_2 0 0 test seq_1_to_1 0 0 test seq_1_to_15 0 0 test seq_1_to_15_step_12345 0 0 test seq_1_to_15_step_2 0 0 show tables; Tables_in_test explain select * from seq_1_to_15_step_2; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE seq_1_to_15_step_2 index NULL PRIMARY 8 NULL 8 Using index explain select * from seq_1_to_15_step_2 where seq > 10; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE seq_1_to_15_step_2 range PRIMARY PRIMARY 8 NULL 3 Using where; Using index explain select * from seq_1_to_15_step_2 where seq between 4 and 9; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE seq_1_to_15_step_2 range PRIMARY PRIMARY 8 NULL 3 Using where; Using index explain select * from seq_1_to_15_step_2 where seq between 20 and 30; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables explain select * from seq_1_to_15_step_2 where seq between 4 and 6; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE seq_1_to_15_step_2 range PRIMARY PRIMARY 8 NULL 1 Using where; Using index explain select * from seq_1_to_15_step_2 where seq between 4 and 5; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE seq_1_to_15_step_2 range PRIMARY PRIMARY 8 NULL 1 Using where; Using index explain select * from seq_1_to_15_step_2 where seq between 4 and 4; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE NULL NULL NULL NULL NULL NULL NULL Impossible WHERE noticed after reading const tables explain select * from seq_1_to_15_step_2 where seq between 5 and 5; id select_type table type possible_keys key key_len ref rows Extra 1 SIMPLE seq_1_to_15_step_2 const PRIMARY PRIMARY 8 const 1 Using index create table t1 (a int, aa int, b varchar(100)); insert t1 select seq, seq*seq, if (seq % 2, 'odd', 'even') from seq_1_to_20; select * from t1; a aa b 1 1 odd 2 4 even 3 9 odd 4 16 even 5 25 odd 6 36 even 7 49 odd 8 64 even 9 81 odd 10 100 even 11 121 odd 12 144 even 13 169 odd 14 196 even 15 225 odd 16 256 even 17 289 odd 18 324 even 19 361 odd 20 400 even select aa, b from t1, seq_1_to_20_step_3 as seq where a=seq; aa b 1 odd 16 even 49 odd 100 even 169 odd 256 even 361 odd insert t1 select seq, seq*seq, if (seq % 2, 'odd', 'even') from seq_1_to_30 where seq > (select max(a) from t1); select * from t1; a aa b 1 1 odd 2 4 even 3 9 odd 4 16 even 5 25 odd 6 36 even 7 49 odd 8 64 even 9 81 odd 10 100 even 11 121 odd 12 144 even 13 169 odd 14 196 even 15 225 odd 16 256 even 17 289 odd 18 324 even 19 361 odd 20 400 even 21 441 odd 22 484 even 23 529 odd 24 576 even 25 625 odd 26 676 even 27 729 odd 28 784 even 29 841 odd 30 900 even drop table t1; select seq from seq_2_to_50 s1 where 0 not in (select s1.seq % s2.seq from seq_2_to_50 s2 where s2.seq <= sqrt(s1.seq)); seq 2 3 5 7 11 13 17 19 23 29 31 37 41 43 47 explain select seq from seq_2_to_50 s1 where 0 not in (select s1.seq % s2.seq from seq_2_to_50 s2 where s2.seq <= sqrt(s1.seq)); id select_type table type possible_keys key key_len ref rows Extra 1 PRIMARY s1 index NULL PRIMARY 8 NULL 49 Using where; Using index 2 DEPENDENT SUBQUERY s2 index PRIMARY PRIMARY 8 NULL 49 Using where; Using index select year(dt) from (select '1901-02-28' + interval seq year as dt from seq_0_to_99) as seqdt where weekday(dt) = 0; year(dt) 1910 1916 1921 1927 1938 1944 1949 1955 1966 1972 1977 1983 1994 2000 create table t1 (a int) engine=innodb; reset master; start transaction; insert t1 select * from seq_1_to_10; savepoint s1; insert t1 select * from seq_11_to_20; rollback to savepoint s1; commit; select count(*) from t1; count(*) 10 include/show_binlog_events.inc Log_name Pos Event_type Server_id End_log_pos Info master-bin.000001 # Gtid # # BEGIN GTID #-#-# master-bin.000001 # Query # # use `test`; insert t1 select * from seq_1_to_10 master-bin.000001 # Query # # SAVEPOINT s1 master-bin.000001 # Xid # # COMMIT /* XID */ drop table t1; drop table seq_1_to_1; set binlog_format=statement; lock table seq_1_to_2 write; set binlog_format=row; lock table seq_1_to_2 write;