| From: | "Florian G(dot) Pflug" <fgp(at)phlo(dot)org> |
|---|---|
| To: | Neil Conway <neilc(at)samurai(dot)com> |
| Cc: | Peter Eisentraut <peter_e(at)gmx(dot)net>, Gevik Babakhani <pgdev(at)xs4all(dot)nl>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: [DOCS] uuid type not documented |
| Date: | 2007-04-10 20:04:36 |
| Message-ID: | 461BEDD4.9060709@phlo.org |
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| Lists: | pgsql-docs pgsql-hackers |
Neil Conway wrote:
> On Tue, 2007-04-10 at 18:28 +0200, Peter Eisentraut wrote:
>> The problem is that most of the standard methods are platform dependent, as
>> they require MAC addresses or a "good" random source, for instance.
>
> http://archives.postgresql.org/pgsql-patches/2007-01/msg00392.php
>
> ISTM random() or similar sources is a sufficient PSRNG for the purposes
> of UUID generation -- I can't see anything in the RFC that would
> contradict that.
Maybe a short-term solution could be a UUID-generated function that
takes some kind of seed as a parameter. People not concerned about
collisons could just pass some random value, while others could use
the mac-address of the client or something similar.
greetings, Florian Pflug
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