-- ALTER TABLE `user__token` CHANGE COLUMN `id` `id` VARCHAR(44) NOT NULL; alter table user__token rename to user__token_backup; create table user__token ( id varchar(44) not null primary key, created datetime not null, expired tinyint default 0 not null, user_id int not null references `user` on delete cascade ); insert into user__token select * from user__token_backup; drop table user__token_backup;