On 5/9/06, gabor <[EMAIL PROTECTED]> wrote:
>
> are there any scenarios when it's not a good idea to have [Slugs] as
> primary keys? (except some hypothetical situations)

The short answer: it's always a *bad* idea.

The slightly longer answer: It's generally a bad idea to have your
primary key be a field with any sort of external meaning; that's why
an arbitrary, autoincremented serial/integer field is typically used. 
If you use a slug (for example), your data integrity is hosed the
moment your slug changes (perhaps because you changed the title); all
foreign references to that object will become invalid.

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