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,

This would make uuidserial not quite as simple as SERIAL pseudotype, of

Álvaro Herrera      
PostgreSQL Development, 24x7 Support, Training & Services

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