Mysql 如何从子查询中仅获取一行？

我有一个6列的查询，我还想得到其他表列的总和

我希望子查询的结果在一行中，但它会重复

select t.id, t.subject, t.created_at, u.name, l.name as l_name, 
ty.name as t_name
,(select sum(new) from statuses ) as new
,(select sum(open) from statuses) as open
,(select sum(close) from statuses) as close
,(select sum(`delete`) from statuses) as `delete`
 from tickets t 
 left join users u  on u.id=t.user_id
 left join levels l on l.id=t.level_id
 left join types ty on ty.id=t.type_id

你能帮帮我吗

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您可以使用

分组方式

select t.id, t.subject, t.created_at, u.name, l.name as l_name, 
ty.name as t_name
,(select sum(new) from statuses ) as new
,(select sum(open) from statuses) as open
,(select sum(close) from statuses) as close
,(select sum(`delete`) from statuses) as `delete`
 from tickets t 
 left join users u  on u.id=t.user_id
 left join levels l on l.id=t.level_id
 left join types ty on ty.id=t.type_id GROUP BY u.name;

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那么所有其他行中应该是什么？除非外部选择中的所有内容都依赖于u.name，否则

GROUP BY

的使用无效。