SpringData JPA左加入SubQuery

Question

select sm.* 
from   system_mail sm 
left join (SELECT u.mail_code 
           from   user_mail u 
           where u.to_user = 1 ) um 
on sm.mail_id = um.mail_code 
where um.id is null.

此SQL在mysql中运行良好，但在SpringData JPA中却错了，我如何在springdata中使用它？

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Answer 1

您应该尝试使用DB引擎使用nativeQuery = true运行SQL。

@Query(nativeQuery = true, value="...yourqueryhere...")