To make it work I selected a column for the primary key as you
suggested, and that worked thanks. However, my selection of a
primary_key column could be arbitrary as there is no real primary key
in my SELECT statement.
When defining a table, I can define a foreign key column. Then when
Bryan wrote:
I want to abstract some ugly reporting SQL strings into a read-only
object model. I have created an empty class, and then I map it to a
select object that pulls some statistical information from the DB.
The mapper is complaining that it can't assemble a primary key. I am
only