OperationalService/script/3.4/schema/1.update_project_correlation.sql

alter table project_correlation
    add "maintenance_end" timestamp with time zone;


alter table project_correlation
    add "maintenance_start" timestamp with time zone;


comment on column project_correlation."maintenance_end" is '维保结束时间';
comment on column project_correlation."maintenance_start" is '维保开始时间';