spaces in my column names... help?

Hello, all --

I am trying to set up a simple relationship using schema.

Problem is, the database has column names like 'Invoice #' and 'Bill To'. 

The error code for belongs_to and has_many is "no such column billto on
foreign class...".

This is true, of course. It has a space in the name.

How do I get DBIx::Class::Schema to look for the right column? 

Any clue or example here greatly appreciated.

Cheers,

-- 
Michael Higgins