-- 2023.11.1  begin 已经执行
alter table alert_record add index  alert_time_index(alert_time);
-- 2023.11.1  end


-- 2023.11.03 begin
update alert_record set alarm_status = -1 where alarm_status is null;
alter table alert_record add index  alarm_status_index(alarm_status);
-- 2023.11.03 end