[CDBI] add new columns to a table will break exi sting class?

Bill Moseley moseley at hank.org
Wed May 24 22:58:22 BST 2006

On Wed, May 24, 2006 at 03:24:05PM +0100, Matt S Trout wrote:
> >No, you must have a primary key.
> You can often get round this by simply declaring the primary key as a 
> composite of all columns - but it's very rare you *really* don't want a 
> primary key. Usually lack of a primary key is just shoddy database design.

None of my link tables have a single primary key.

    PersonRole->columns( Primary => qw / person role / );

Bill Moseley
moseley at hank.org

More information about the ClassDBI mailing list