alter table xxl_job_group add update_time datetime;

alter table xxl_job_info change job_cron schedule_conf varchar(128) comment '调度配置，值含义取决于调度类型';
alter table xxl_job_info drop  start_time;
alter table xxl_job_info drop  end_time;
alter table xxl_job_info drop  jobcalendar;
alter table xxl_job_info add schedule_type varchar(50) not null default 'NONE' comment '调度类型';
alter table xxl_job_info add misfire_strategy varchar(50) not null default 'DO_NOTHING' comment '调度过期策略';

alter table xxl_job_log drop handle_end_time;
alter table xxl_job_log drop handle_duration;

alter table xxl_job_log_report add update_time datetime comment '调度-时间';
alter table xxl_job_info modify id int auto_increment ;
