On 04/24/2014 08:00 PM, Alvaro Herrera wrote:
> Tom Lane wrote:
>
>> This is not our fault, and I don't want us to get caught up in trying
>> to fix a fundamentally broken concept --- which is what a generic
>> "uuidserial" API would be. If you try to paper over the difficulties
>> here, they'll just bite you on the rear someday.
>
> But we have non-colliding generation technology for OIDs in system
> catalogs. We could try to reuse the idea in a UUID generator: grab one
> value, try to insert; if it fails generate a new one, lather, rinse,
> repeat.
Umm, UUID stands for Universally Unique IDentifier. That would hardly be
*universally* unique.
- Heikki