[wp-hackers] Why URL in GUID?

[Mark Jaquith]

On Oct 2, 2006, at 9:27 PM, Sam Angove wrote:

> It's not *just* a unique key. It's used in Atom feeds for the `id`
> element, for example, which is required by the spec to be a valid IRI.
> In Atom 0.3 it was required to be a URI. That limits the format fairly
> drastically.

And let's not forget that we're using it as an actual URL for  
attachments.  We really should fix that for 2.1 ... people who move  
their blogs are left with broken images and the solution requires  
changing the GUID, which you're not supposed to do.

--
Mark Jaquith
http://txfx.net/