text: -- @testpoint: rawtohex函数与order by联合使用
  drop table if exists tb;
  create table tb(id int,hex int);
  insert into tb values(1,3),(4,5),(8,9);
  select rawtohex(concat(id,hex)) from tb order by 1;
  select rawtohex(concat_ws('',id,hex)) from tb order by 1;
  drop table if exists tb;