开发说pg中执行sql报错，发来消息让帮看看：



SELECT DISTINCT ON expressions must match initial ORDER BY expressions


　　

详细语句如下：



SELECT DISTINCT ON
  ( p_no ) p_no,
  p_name,
  p_manager,
  p_manager_no,
  p_dept 
FROM
P 
WHERE
  corporation = $1 
  AND status = $2 
ORDER BY
  create_time DESC


　　

失败的原因看看官方文档就知道了：

SELECT DISTINCT ON expressions must match initial ORDER BY expressions_pg