select `parent_id` as `parentId`,`user_id`as `userId`,`bind_time` as `bindTime` from `app_user_relation` where `parent_id`=#{leaderId} and `is_del`=0
select `parent_id` as `parentId`,`user_id`as `userId`,`bind_time` as `bindTime` from `app_user_relation` where `parent_id`=#{leaderId} and `is_del`=0 order by `bind_time` DESC