Hibernate 生成的查询包含空字段

我使用spring数据jpa和hibernate实现

我有一个保释金，里面有一份租金清单

    @OneToMany(cascade = CascadeType.PERSIST, fetch = FetchType.LAZY, mappedBy = "bail")
    private List<Rent> rents;

Hibernate将此查询转换为

select
        rent0_.rent_id as rent_id1_33_,
        rent0_.bail_id as bail_id5_33_,
        rent0_.from_date as from_dat2_33_,
        rent0_.to_date as to_date3_33_,
        rent0_.unpaid_balance as unpaid_b4_33_ 
    from
        rent rent0_ 
    inner join
        bail bail1_ 
            on rent0_.bail_id=bail1_.bail_id 
    inner join
        lodger lodger2_ 
            on bail1_.lodger_id=lodger2_.lodger_id cross 
    join
        room_payment roompaymen3_ 
    where
        rent0_.rent_id=roompaymen3_.rent_id 
        and (
            rent0_.unpaid_balance>0 
            or . is null
        ) 
    order by
        rent0_.rent_id

---

或者是空的。。。缺少某些内容

列表不能为空。但它可以是空的：

or r.roomPaymentList is empty

---

正如我所写的，我使用spring数据jpa和hibernate实现

select
        rent0_.rent_id as rent_id1_33_,
        rent0_.bail_id as bail_id5_33_,
        rent0_.from_date as from_dat2_33_,
        rent0_.to_date as to_date3_33_,
        rent0_.unpaid_balance as unpaid_b4_33_ 
    from
        rent rent0_ 
    inner join
        bail bail1_ 
            on rent0_.bail_id=bail1_.bail_id 
    inner join
        lodger lodger2_ 
            on bail1_.lodger_id=lodger2_.lodger_id cross 
    join
        room_payment roompaymen3_ 
    where
        rent0_.rent_id=roompaymen3_.rent_id 
        and (
            rent0_.unpaid_balance>0 
            or . is null
        ) 
    order by
        rent0_.rent_id

or r.roomPaymentList is empty