How to set foregn key in map Join?

[megafetis]

How to set foregn key in map Join?

var joinTable="Category"
Join(joinTable, j =>
            {
                j.Optional();
                j.KeyColumn("Id");

                j.Map(p => p.CategoryName).Column("Name");
            });

I think must be:

var joinTable="Category";
var foregnColumn ="category_id";
Join(foregnColumn, j =>
            {
                j.Optional();
                j.KeyColumn("Id");
                j.Table(joinTable);
                j.Map(p => p.CategoryName).Column("Name");
            });

[norrbacka]

Maybe relevant:

https://hibernate.atlassian.net/browse/HHH-1829