create table user_unique_login ( id bigint auto_increment primary key, user_id varchar(64) not null, product_code varchar(255) not null, login_strategy varchar(64) not null, login_domain varchar(255) not null, tid varchar(32) not null, create_time datetime not null, update_time datetime not null ); create index user_id_product_code_index on user_unique_login (user_id, product_code, login_strategy, login_domain); alter table product add unique_login_strategy varchar(64) default 'APP_UNIQUE' not null after remark;