create table t(id int primary key, a int) engine=InnoDB;
insert into t (id, a) values (1, 1);
alter table t modify column id int auto_increment;
check table t;
Table Op Msg_type Msg_text
test.t check status OK
insert into t (a) values (2);
alter table t modify column id int, algorithm=instant;
check table t;
Table Op Msg_type Msg_text
test.t check status OK
insert into t (id, a) values (3, 3);
select * from t;
id a
1 1
2 2
3 3
check table t;
Table Op Msg_type Msg_text
test.t check status OK
drop table t;
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(vorverarbeitet am 2026-10-08)
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