NHibernate HQL: How to use the new object constructor with 'distinct'?

问题

I need to use the HQL object constructor feature, e.g:

select new SomeClass(i.Id, i.Name) from Item i...

But I also need to use the distinct keyword, as there are joins further down in the query, e.g.:

select distinct i.Id from Item i

I have tried this: but it just causes an Antlr exception, so I assume it's invalid syntax:

select new SomeClass(distinct i.Id, i.Name) from Item i

Is this possible?

回答1:

Ah, it looks like this works:

select distinct new SomeClass(i.Id, i.Name) from Item i...

来源：https://stackoverflow.com/questions/6603608/nhibernate-hql-how-to-use-the-new-object-constructor-with-distinct