NHibernate-”一词；在；具有复合id的查询

我试图对映射为复合键的id对象集合（实现为一个简单类，包含两个整数id成员）执行“in”查询，当我使用criteria api使用Restrictions.in和使用NHibernate.Linq使用idList.Contains进行查询时，我看到了一些奇怪的结果

下面是一个示例用法：

    Public Function GetByMultipleIds(ByVal ids As ICollection(Of QualificationKey)) As IList(Of Qualification) Implements IQualificationRepository.GetByMultipleIds
        Dim query = Session.CreateCriteria(Of Qualification)()
        query.Add(Restrictions.In("Id", ids.ToArray()))
        Return query.List(Of Qualification)()
    End Function

以下是我的密钥的映射：

    <composite-id name="Id" class="QualificationKey">
        <key-property name="QualificationAreaId" column="QualificationAreaId"/>
        <key-property name="QualificationLevelId" column="QualificationLevelId"/>
    </composite-id>

对我来说，这种逻辑似乎有缺陷，它对每个复合密钥ID执行单独的“In”查询；这不会返回错误的结果吗

---

作为参考，我已经在我的key类上正确实现了.Equals和.GetHashCode，所以我确信这不是问题所在。

是的，它将返回错误的结果，任何定义的组合id值都可以计算为true，因此，当您请求例如[[1,1]、[2,2]、[3,3]]时，此查询还将获取[[1,2]、[1,3]、[2,1][2,3]、[3,1]、[3,2]等

我现在能想到的唯一解决办法是成对的析取

（此u.QualificationEAID=1且此u.QualificationLevelId=1）或

（此u.QualificationEAID=2，此u.QualificationLevelId=2）或

（此u.QualificationEAID=3，此u.QualificationLevelId=3）

---

等等……

感谢您确认这一点；我想我可以走分离路线，但这有点痛苦-感谢您的输入。

SELECT this_.QualificationAreaId                                                                  as Qualific1_6_2_,
       this_.QualificationLevelId                                                                 as Qualific2_6_2_,
       this_.Version                                                                              as Version6_2_,
       this_.Rank                                                                                 as Rank6_2_,
       (SELECT QualificationArea.QualificationAreaTypeId
        FROM   QualificationArea
        WHERE  QualificationArea.QualificationAreaId = this_.QualificationAreaId) as clazz_2_,
       qualificat2_.QualificationAreaId                                                           as Qualific1_7_0_,
       qualificat2_.Name                                                                          as Name7_0_,
       qualificat2_.QualificationAreaTypeId                                                       as Qualific2_7_0_,
       qualificat2_.QualificationAreaPermissionId                                                 as Qualific4_7_0_,
       qualificat2_.Description                                                                   as Descript5_7_0_,
       qualificat2_.QualificationAreaExpirySettingId                                              as Qualific6_7_0_,
       qualificat2_.DisplayOrder                                                                  as DisplayO7_7_0_,
       qualificat2_.DateCreated                                                                   as DateCrea8_7_0_,
       qualificat2_.DateUpdated                                                                   as DateUpda9_7_0_,
       qualificat2_.ShowOnSignupForm1                                                             as ShowOnS10_7_0_,
       qualificat2_.ShowOnSignupForm2                                                             as ShowOnS11_7_0_,
       qualificat2_.ShowOnSignupForm3                                                             as ShowOnS12_7_0_,
       qualificat2_.AgencyId                                                                      as AgencyId7_0_,
       qualificat3_.QualificationLevelId                                                          as Qualific1_47_1_,
       qualificat3_.Name                                                                          as Name47_1_,
       qualificat3_.Description                                                                   as Descript3_47_1_,
       qualificat3_.DateCreated                                                                   as DateCrea4_47_1_,
       qualificat3_.DateUpdated                                                                   as DateUpda5_47_1_,
       qualificat3_.AgencyId                                                                      as AgencyId47_1_,
       dbo.IsQualificationLevelAssociatedWithAnyQualifications(qualificat3_.QualificationLevelId) as formula21_1_
FROM   Qualification this_
       inner join QualificationArea qualificat2_
         on this_.QualificationAreaId = qualificat2_.QualificationAreaId
       inner join QualificationLevel qualificat3_
         on this_.QualificationLevelId = qualificat3_.QualificationLevelId
WHERE  this_.QualificationAreaId in (1 /* @p0 */,2 /* @p1 */,3 /* @p2 */)
       and this_.QualificationLevelId in (1 /* @p3 */,2 /* @p4 */,3 /* @p5 */)