drop table if exists gh_ost_test; create table gh_ost_test ( id int(11) NOT NULL AUTO_INCREMENT, name varchar(512) DEFAULT NULL, v varchar(255) DEFAULT NULL COMMENT '添加普通列测试', PRIMARY KEY (id) ) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=gbk; insert into gh_ost_test values (null, 'gbk-test-initial', '添加普通列测试-添加普通列测试'); insert into gh_ost_test values (null, 'gbk-test-initial', '添加普通列测试-添加普通列测试'); drop event if exists gh_ost_test; delimiter ;; create event gh_ost_test on schedule every 1 second starts current_timestamp ends current_timestamp + interval 60 second on completion not preserve enable do begin insert into gh_ost_test (name) values ('gbk-test-default'); insert into gh_ost_test values (null, 'gbk-test', '添加普通列测试-添加普通列测试'); update gh_ost_test set v='添加普通列测试' where v='添加普通列测试-添加普通列测试' order by id desc limit 1; end ;;