1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250
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drop table if exists t1;
Warnings:
Note 1051 Unknown table 'test.t1'
#
# Test alter sequence
#
CREATE SEQUENCE t1 nocache engine=myisam;
select * from t1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
1 1 9223372036854775806 1 1 0 0 0
select next value for t1;
next value for t1
1
alter sequence t1 start=50;
show create sequence t1;
Table Create Table
t1 CREATE SEQUENCE `t1` start with 50 minvalue 1 maxvalue 9223372036854775806 increment by 1 nocache nocycle ENGINE=MyISAM
select * from t1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
2 1 9223372036854775806 50 1 0 0 0
select next value for t1;
next value for t1
2
alter sequence t1 minvalue=-100;
show create sequence t1;
Table Create Table
t1 CREATE SEQUENCE `t1` start with 50 minvalue -100 maxvalue 9223372036854775806 increment by 1 nocache nocycle ENGINE=MyISAM
select * from t1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
3 -100 9223372036854775806 50 1 0 0 0
alter sequence t1 minvalue=100 start=100;
ERROR HY000: Sequence 'test.t1' has out of range value for options
alter sequence t1 minvalue=100 start=100 restart=100;
show create sequence t1;
Table Create Table
t1 CREATE SEQUENCE `t1` start with 100 minvalue 100 maxvalue 9223372036854775806 increment by 1 nocache nocycle ENGINE=MyISAM
select * from t1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
100 100 9223372036854775806 100 1 0 0 0
alter sequence t1 maxvalue=500;
show create sequence t1;
Table Create Table
t1 CREATE SEQUENCE `t1` start with 100 minvalue 100 maxvalue 500 increment by 1 nocache nocycle ENGINE=MyISAM
select * from t1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
100 100 500 100 1 0 0 0
drop sequence t1;
CREATE SEQUENCE t1 engine=myisam;
alter sequence t1 nocache;
show create sequence t1;
Table Create Table
t1 CREATE SEQUENCE `t1` start with 1 minvalue 1 maxvalue 9223372036854775806 increment by 1 nocache nocycle ENGINE=MyISAM
alter sequence t1 cache=100;
flush tables;
show create sequence t1;
Table Create Table
t1 CREATE SEQUENCE `t1` start with 1 minvalue 1 maxvalue 9223372036854775806 increment by 1 cache 100 nocycle ENGINE=MyISAM
alter sequence t1 nocache;
show create sequence t1;
Table Create Table
t1 CREATE SEQUENCE `t1` start with 1 minvalue 1 maxvalue 9223372036854775806 increment by 1 nocache nocycle ENGINE=MyISAM
flush tables;
show create sequence t1;
Table Create Table
t1 CREATE SEQUENCE `t1` start with 1 minvalue 1 maxvalue 9223372036854775806 increment by 1 nocache nocycle ENGINE=MyISAM
select * from t1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
1 1 9223372036854775806 1 1 0 0 0
select next value for t1;
next value for t1
1
select next value for t1;
next value for t1
2
select next value for t1;
next value for t1
3
select next_not_cached_value, cycle_count from t1;
next_not_cached_value cycle_count
4 0
drop sequence t1;
CREATE SEQUENCE t1 maxvalue=100 engine=myisam;
alter sequence t1 no maxvalue;
show create sequence t1;
Table Create Table
t1 CREATE SEQUENCE `t1` start with 1 minvalue 1 maxvalue 9223372036854775806 increment by 1 cache 1000 nocycle ENGINE=MyISAM
select * from t1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
1 1 9223372036854775806 1 1 1000 0 0
alter sequence t1 cycle;
show create sequence t1;
Table Create Table
t1 CREATE SEQUENCE `t1` start with 1 minvalue 1 maxvalue 9223372036854775806 increment by 1 cache 1000 cycle ENGINE=MyISAM
alter sequence t1 nocycle;
alter sequence t1 start=15 restart minvalue=10 maxvalue=20 cycle;
show create sequence t1;
Table Create Table
t1 CREATE SEQUENCE `t1` start with 15 minvalue 10 maxvalue 20 increment by 1 cache 1000 cycle ENGINE=MyISAM
select * from t1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
15 10 20 15 1 1000 1 0
select NEXT VALUE for t1 from seq_1_to_10;
NEXT VALUE for t1
15
16
17
18
19
20
10
11
12
13
alter sequence t1 restart with 17 minvalue=10 maxvalue=20 cycle;
select NEXT VALUE for t1 from seq_1_to_10;
NEXT VALUE for t1
17
18
19
20
10
11
12
13
14
15
drop sequence t1;
CREATE SEQUENCE t1 maxvalue=100;
alter sequence t1 increment=-2 start with 50 minvalue=-100;
show create sequence t1;
Table Create Table
t1 CREATE SEQUENCE `t1` start with 50 minvalue -100 maxvalue 100 increment by -2 cache 1000 nocycle ENGINE=MyISAM
select * from t1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
1 -100 100 50 -2 1000 0 0
select NEXT VALUE for t1 from seq_1_to_10;
NEXT VALUE for t1
1
-1
-3
-5
-7
-9
-11
-13
-15
-17
drop sequence t1;
#
# InnoDB (some things work different with InnoDB)
CREATE SEQUENCE t1 cache 10 engine=innodb;
select * from t1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
1 1 9223372036854775806 1 1 10 0 0
select next value for t1;
next value for t1
1
alter sequence t1 start=100;
show create sequence t1;
Table Create Table
t1 CREATE SEQUENCE `t1` start with 100 minvalue 1 maxvalue 9223372036854775806 increment by 1 cache 10 nocycle ENGINE=InnoDB
select * from t1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
11 1 9223372036854775806 100 1 10 0 0
select next value for t1;
next value for t1
11
drop sequence t1;
#
# ALTER TABLE
#
CREATE SEQUENCE t1 engine=innodb;
select next value for t1;
next value for t1
1
alter table t1 rename t2;
select next value for t2;
next value for t2
1001
rename table t2 to t1;
select next value for t1;
next value for t1
2001
alter table t1 comment="foo";
show create sequence t1;
Table Create Table
t1 CREATE SEQUENCE `t1` start with 1 minvalue 1 maxvalue 9223372036854775806 increment by 1 cache 1000 nocycle ENGINE=InnoDB COMMENT='foo'
alter table t1 engine=myisam;
show create sequence t1;
Table Create Table
t1 CREATE SEQUENCE `t1` start with 1 minvalue 1 maxvalue 9223372036854775806 increment by 1 cache 1000 nocycle ENGINE=MyISAM COMMENT='foo'
alter table t1 engine=innodb;
show create sequence t1;
Table Create Table
t1 CREATE SEQUENCE `t1` start with 1 minvalue 1 maxvalue 9223372036854775806 increment by 1 cache 1000 nocycle ENGINE=InnoDB COMMENT='foo'
select * from t1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
3001 1 9223372036854775806 1 1 1000 0 0
drop sequence t1;
CREATE SEQUENCE t1 engine=myisam;
alter sequence t1 minvalue=100;
ERROR HY000: Sequence 'test.t1' has out of range value for options
drop sequence t1;
CREATE SEQUENCE t1 engine=myisam;
alter sequence t1 minvalue=25 maxvalue=20;
ERROR HY000: Sequence 'test.t1' has out of range value for options
drop sequence t1;
create table t1 (a int);
alter sequence t1 minvalue=100;
ERROR 42S02: 'test.t1' is not a SEQUENCE
drop table t1;
alter sequence if exists t1 minvalue=100;
ERROR 42S02: Unknown SEQUENCE: 't1'
alter sequence t1 minvalue=100;
ERROR 42S02: Unknown SEQUENCE: 't1'
create sequence t1;
alter sequence t1;
ERROR 42000: You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near '' at line 1
drop sequence t1;
CREATE SEQUENCE t1 maxvalue=100;
alter sequence t1 increment=-2 start with 50;
select next value for t1;
next value for t1
1
select next value for t1;
ERROR HY000: Sequence 'test.t1' has run out
select * from t1;
next_not_cached_value minimum_value maximum_value start_value increment cache_size cycle_option cycle_count
0 1 100 50 -2 1000 0 0
alter sequence t1 restart;
select next value for t1;
next value for t1
50
alter sequence t1 restart with 90;
select next value for t1;
next value for t1
90
drop sequence t1;
CREATE SEQUENCE t1 engine=innodb;
ALTER IGNORE TABLE t1 ADD CHECK (start_value < minimum_value);
ERROR HY000: Sequence 'test.t1' table structure is invalid (Sequence tables cannot have any constraints)
DROP SEQUENCE t1;
CREATE SEQUENCE s;
ALTER TABLE s ORDER BY cache_size;
ERROR HY000: Sequence 'test.s' table structure is invalid (ORDER BY)
SELECT NEXTVAL(s);
NEXTVAL(s)
1
DROP SEQUENCE s;
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