别名的nhibernate查询条件

Question

Company companyAlias;

var query = session.QueryOver.<Company>(() => companyAlias);


var subq = QueryOver.Of.<Bill>(() => billAlias)
.Select(Projections.Max(() => billAlias.Date ));      

var myalias  = DateTime.Min;

query = query.SelectList( l => l.SelectSubQuery(subq).WithAlias(() => myalias));

现在我希望能够过滤“myalias”。可能吗 ？我见过的WithAlias的所有例子都是针对DTO预测的。