can NHibernate use database index in a QueryOver?

Question

Suppose I have a entity with a id and a name fields. I want to look up those entities by name and I build a database index on the name field .

Now when I use NHibernate QueryOver, can NHibernate utilize the database index on name ?

if a second level cache is used , what algorithm will NHibernate use to find entites by name ?

Answer 1

NHibernate ultimately sends SQL to your database server. It is up to the SQL optimizer of your DB server (MySQL, MS SQL Server, etc) to decide whether to use an index or not.