SELECT id, (select organization_name from automessage_organization_chart where id=a.department_id )departmentName, department_id, name, link_type, type, article_link, rich_text, create_time, update_time, (select user_name from automessage_sys_user where user_id=a.update_user_id)updateUserName, update_user_id, (select user_name from automessage_sys_user where user_id=a.create_user_id)createUserName, create_user_id FROM automessage_policy_documents a