Eager loading property of derived class using Include

Question

I have classes like:

Person
{
   Name
   Address
}

Employee : Person
{
   Compensation - object
}

Visitor : Person
{

}

If I write linq:<

Answer 1

Here's a nice example of how to load Persons and include Compensation for Employees

Replace Reference() by Collection() for a collection property.

IQueryable GetPersons()
{
    var persons = Context.Persons;
    foreach(var entry in persons.OfType())
        Context.Entry(entry).Reference(e => e.Compensation).Load();
    return persons;
}

Not sure either if it's efficient, but it works, and the intention is clearer than with joins.

Based on this SO answer