IIRC it is largely historical: at one point Roller used Castor, which has as it's "default" a GUID generator that creates a 30-char primary key.
Lance On 3/14/06, David M Johnson <[EMAIL PROTECTED]> wrote: > > On Mar 11, 2006, at 4:45 PM, BigLiu wrote: > > I want to create some customer tables to extend roller. But I have > > question > > regarding why the primary key is defined in hex instead of integer? > > Will > > this cause any performance problem? > > I can't really remember why I chose the hex key. I don't think it has > a significant impact on performance. > > - Dave > >