From:
Mike Christensen <mike(at)kitchenpc(dot)com>
To:
Grzegorz Jaśkiewicz <gryzman(at)gmail(dot)com>
Cc:
Scott Ribe <scott_ribe(at)elevated-dev(dot)com>, Radosław Smogura <rsmogura(at)softperience(dot)eu>, PostgreSQL general <pgsql-general(at)postgresql(dot)org>
Subject:
Re: UUID column as pimrary key?
Date:
2011-01-05 15:03:12
Message-ID:
AANLkTi=2s6Q_16yzj8-iYa2=9stGE-mtxJjJk4YAOnji@mail.gmail.com (view raw or flat )
Thread:
2011-01-04 19:07:00 from Dennis Gearon <gearond(at)sbcglobal(dot)net>
2011-01-04 19:16:52 from David Wall <d(dot)wall(at)computer(dot)org>
2011-01-04 21:11:14 from Chris Browne <cbbrowne(at)acm(dot)org>
2011-01-04 19:24:30 from "Joshua D(dot) Drake" <jd(at)commandprompt(dot)com>
2011-01-05 08:31:51 from Radosław Smogura <rsmogura(at)softperience(dot)eu>
2011-01-05 10:50:11 from Craig Ringer <craig(at)postnewspapers(dot)com(dot)au>
2011-01-05 14:28:40 from Radosław Smogura <rsmogura(at)softperience(dot)eu>
2011-01-05 14:34:00 from Szymon Guz <mabewlun(at)gmail(dot)com>
2011-01-05 14:55:26 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-05 19:40:59 from Dennis Gearon <gearond(at)sbcglobal(dot)net>
2011-01-05 14:37:18 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-05 14:55:53 from Grzegorz Jaśkiewicz <gryzman(at)gmail(dot)com>
2011-01-05 15:03:12 from Mike Christensen <mike(at)kitchenpc(dot)com>
2011-01-05 15:06:16 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-05 16:46:27 from Grzegorz Jaśkiewicz <gryzman(at)gmail(dot)com>
2011-01-05 15:04:45 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-05 15:05:29 from Bill Moran <wmoran(at)potentialtech(dot)com>
2011-01-05 15:21:49 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-05 15:55:22 from Bill Moran <wmoran(at)potentialtech(dot)com>
2011-01-05 16:03:47 from Rob Sargent <robjsargent(at)gmail(dot)com>
2011-01-05 18:57:59 from Bill Moran <wmoran(at)potentialtech(dot)com>
2011-01-05 19:58:12 from Rob Sargent <robjsargent(at)gmail(dot)com>
2011-01-05 20:43:01 from Bill Moran <wmoran(at)potentialtech(dot)com>
2011-01-05 21:12:26 from Rob Sargent <robjsargent(at)gmail(dot)com>
2011-01-06 16:22:18 from Anthony <osm(at)inbox(dot)org>
2011-01-05 22:39:09 from Alban Hertroys <dalroi(at)solfertje(dot)student(dot)utwente(dot)nl>
2011-01-05 22:49:01 from Rob Sargent <robjsargent(at)gmail(dot)com>
2011-01-05 23:27:55 from Chris Browne <cbbrowne(at)acm(dot)org>
2011-01-06 08:02:43 from Alban Hertroys <dalroi(at)solfertje(dot)student(dot)utwente(dot)nl>
2011-01-06 08:52:15 from Stuart Bishop <stuart(at)stuartbishop(dot)net>
2011-01-06 14:29:48 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-06 15:14:00 from Bill Moran <wmoran(at)potentialtech(dot)com>
2011-01-06 15:46:59 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-06 15:55:38 from Adrian Klaver <adrian(dot)klaver(at)gmail(dot)com>
2011-01-06 16:51:25 from Chris Browne <cbbrowne(at)acm(dot)org>
2011-01-06 18:33:05 from Alban Hertroys <dalroi(at)solfertje(dot)student(dot)utwente(dot)nl>
2011-01-06 19:36:21 from Chris Browne <cbbrowne(at)acm(dot)org>
2011-01-06 20:39:34 from Bill Moran <wmoran(at)potentialtech(dot)com>
2011-01-06 22:06:55 from Alban Hertroys <dalroi(at)solfertje(dot)student(dot)utwente(dot)nl>
2011-01-08 10:48:24 from Jasen Betts <jasen(at)xnet(dot)co(dot)nz>
2011-01-06 18:24:06 from Bill Moran <wmoran(at)potentialtech(dot)com>
2011-01-06 20:01:01 from "A(dot)M(dot)" <agentm(at)themactionfaction(dot)com>
2011-01-05 16:18:37 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-05 19:03:24 from Bill Moran <wmoran(at)potentialtech(dot)com>
2011-01-05 19:41:43 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-05 20:13:27 from Raymond O'Donnell <rod(at)iol(dot)ie>
2011-01-05 20:14:37 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-05 22:03:12 from Andrew Sullivan <ajs(at)crankycanuck(dot)ca>
2011-01-05 23:11:35 from Michael Satterwhite <michael(at)weblore(dot)com>
2011-01-05 23:44:40 from Radosław Smogura <rsmogura(at)softperience(dot)eu>
2011-01-06 02:46:18 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-06 05:30:45 from Andrew Sullivan <ajs(at)crankycanuck(dot)ca>
2011-01-06 15:19:14 from Michael Satterwhite <michael(at)weblore(dot)com>
2011-01-06 15:59:56 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-05 23:22:08 from Chris Browne <cbbrowne(at)acm(dot)org>
2011-01-06 03:23:26 from Andrew Sullivan <ajs(at)crankycanuck(dot)ca>
2011-01-06 02:44:29 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-06 03:26:50 from Andrew Sullivan <ajs(at)crankycanuck(dot)ca>
2011-01-05 23:32:58 from dennis jenkins <dennis(dot)jenkins(dot)75(at)gmail(dot)com>
2011-01-05 23:47:44 from Szymon Guz <mabewlun(at)gmail(dot)com>
2011-01-06 16:31:38 from Chris Browne <cbbrowne(at)acm(dot)org>
2011-01-06 17:09:15 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-05 16:01:52 from Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us>
2011-01-05 16:29:59 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-05 16:57:45 from Adrian Klaver <adrian(dot)klaver(at)gmail(dot)com>
2011-01-05 17:30:42 from Radosław Smogura <rsmogura(at)softperience(dot)eu>
2011-01-05 17:48:37 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-06 09:51:03 from Jasen Betts <jasen(at)xnet(dot)co(dot)nz>
2011-01-06 14:28:04 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-05 16:19:22 from Leif Biberg Kristensen <leif(at)solumslekt(dot)org>
2011-01-05 16:33:51 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
2011-01-05 18:31:37 from Radosław Smogura <mail(at)smogura(dot)eu>
2011-01-05 19:31:55 from Scott Ribe <scott_ribe(at)elevated-dev(dot)com>
Lists:
pgsql-general
2011/1/5 Grzegorz Jaśkiewicz <gryzman(at)gmail(dot)com>:
> On Wed, Jan 5, 2011 at 2:37 PM, Scott Ribe <scott_ribe(at)elevated-dev(dot)com> wrote:
>> On Jan 5, 2011, at 1:31 AM, Radosław Smogura wrote:
>>
>>> * simple to generate, and 128bit random is almost globally unique,
>>
>> Almost? Should be totally unique, as long as your random source is decent quality.
>
> But I would never rely on that alone. You always have a strategy in
> place, in case there's a duplicate.
As long as all your UUIDs are generated with the same algorithm, they
are guaranteed to be unique.
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