Selecting count of child object collection in NHibernate

I have a Customer object that has a child Orders collection. I have this relationship set up in the mapping file with Orders being laz开发者_开发知识库y-loaded. Is it possible to lazy-load only the count of Orders instead of the entire collection? If so, how?

Thanks!

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maybe you could try using a formula (see nhibenate mapping reference) to execute sql code and get the value directly into a property. this could use the count() function of your rdbms which avoids loading the entities at all.