NHibernate Fluent group by

Question

我有这个禁止的标准：

       criteria.Add(Subqueries.PropertyIn("Id", DetachedCriteria.For<ReconItemReconSide>()
            .SetProjection(Projections.ProjectionList()
            .Add(Projections.GroupProperty("ReconItemFk"))
            .Add(Projections.Min("ReconciliationSideFk")))
            .Add(Expression.In(Projections.Property("ReconItemFk"), items))
            ));

- 这成为了这个查询（我从外部选择中删除了一些字段以最小化这里的长度）：

SELECT this_.Id                        as Id8_0_
FROM   CI.BM_RECONCILIATION_SIDE this_
WHERE  this_.Id in (SELECT   this_0_.BM_RECON_ITEM               as y0_,
                         min(this_0_.BM_RECONCILIATION_SIDE) as y1_
                FROM     CI.BM_RECON_ITEM_RECON_SIDE this_0_
                WHERE    this_0_.BM_RECON_ITEM in (345061 /* :p0 */,345877 /* :p1 */)
                GROUP BY this_0_.BM_RECON_ITEM)

问题在于我希望内部选择仅选择一个字段（min（this_0_.BM_RECONCILIATION_SIDE）），但groupby也将groupby-field添加到select。

我希望能够创建一个groupby而无需投影groupby字段本身。 查询应该类似于：

SELECT this_.Id                        as Id8_0_
FROM   CI.BM_RECONCILIATION_SIDE this_
WHERE  this_.Id in (SELECT   
                         min(this_0_.BM_RECONCILIATION_SIDE) as y1_
                FROM     CI.BM_RECON_ITEM_RECON_SIDE this_0_
                WHERE    this_0_.BM_RECON_ITEM in (345061 /* :p0 */,345877 /* :p1 */)
                GROUP BY this_0_.BM_RECON_ITEM)

知道如何解决这个问题吗？

Answer 1

好吧，看起来这仍然是带有nHib的open issue 就像他们总是说 - 欢迎你自己实施.. :)。