Re: Re: New data type: uniqueidentifier
alex@pilosoft.com
From: Alex Pilosov <alex@pilosoft.com>
To: Peter Eisentraut <peter_e@gmx.net>
Cc: "Dmitry G. Mastrukov" <dmitry@taurussoft.org>,
pgsql-hackers@postgresql.org
Date: 2001-07-02T21:27:37Z
Lists: pgsql-hackers
On Mon, 2 Jul 2001, Peter Eisentraut wrote: > Alex Pilosov writes: > > > I don't think you know what UUID is. It is NOT just a unique randon > > number. There are specific rules for construction of such number, specific > > rules for comparison of numbers (no, its not bit-by-bit), thus a datatype > > is most appropriate answer. > > A data type may be appropriate for storing these values, but not for > generating them. Functions generate stuff, data types store stuff. Sorry, apparently we misunderstood each other but are really in full agreement. Dmitry's stuff contains both datatype (uniqueidentifier), a function to generate a new object of that type (newid), and a set of functions to implement comparison operators for that type. I don't see anything wrong with that setup, but maybe I'm still missing something? -alex