HQL中的括号不会转换为SQL

Question

这是我的HQL:

Query query = createQueryOnCurrentSession("DELETE Email e " +
                "where " +
                "(status = :sent and creationTime <= :creation)" +
                "or " +
                "(status = :error and maxEttempts >= :maxEttempts)");

这是生成的SQL:

delete from `email` where `status`=? and `creation_time`<=? or `status`=? and `attempts`>=?

问题:为什么括号不在SQL中？我希望它是:

delete from `email` where (`status`=? and `creation_time`<=?) or (`status`=? and `attempts`>=?)

也许我会在2个请求中删除？

delete from `email` where `status`=? and `creation_time`<=?
delete from `email` where `status`=? and `attempts`>=?

Answer 1

这实际上是一个功能.

由于and优先权or,hibernate知道它,并删除括号.

你不需要那些括号.