mysql group by不改变union all中列表的顺序

Question

这是我的查询

select id from ((select id from users where id = 2 
)
union all 
(select id from users where id = 1 
)
union all 
(select id from users where id = 1 
)
union all 
(select id from users where id = 4 
)
union all 
(select id from users where id = 3 
)
)results group by id

我得到的输出是

id
----
1
2
3
4

我预期的输出是

id
----
2
1
4
3

有什么解决方案吗？

我需要id的结果组，而不是有序列表

Answer 1

好像你需要这样的东西不是所有的联合

SELECT `id` FROM `users` WHERE id IN(1,2,3,4);