Postgres无法正确排序两列 [英] Postgres not sorting two columns correctly

问题描述

我从Postgres中选择一个名称，一个动作和一个计数，按名称ASC，动作ASC进行排序，如下所示：

I am selecting a name, an action and a count from Postgres sorting by name ASC, action ASC like so:

SELECT u.firstname || ' ' || u.surname AS user,
    nt.name AS action,
    cn.count
FROM (
    SELECT actioned_by_id, note_type_id, COUNT(id) AS count
    FROM customer_notes
    WHERE actioned_date IS NOT NULL 
    GROUP BY actioned_by_id, note_type_id
) AS cn
LEFT JOIN note_type AS nt ON cn.note_type_id = nt.id
LEFT JOIN users as u on cn.actioned_by_id = u.id
WHERE cn.actioned_by_id IS NOT NULL 
ORDER BY user, action;

但是结果表明它忽略了user子句，仅按动作排序。

however the results show that it is ignoring the user clause and only ordering by the action.

"ADMIN USER" "CALL OUT"   1
"ADMIN USER" "EMAIL"      1
"ADMIN USER" "LETTER"     2
"AA AA"      "MEETING"    1
"ADMIN USER" "PHONECALL"  7
"AA AA"      "PHONECALL"  1

有人知道为什么吗？
以及如何使其正确订购？

Anyone understand why? And how to make it order properly?

推荐答案

user 是保留字-返回当前用户名

user is a reserved word - returning the current user name

尝试

order by u.firstname || ' ' || u.surname, action

这篇关于Postgres无法正确排序两列的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！