| 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 |
| Views: | Raw Message | Whole Thread | Download mbox | Resend email |
| Thread: | |
| 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.
| From | Date | Subject | |
|---|---|---|---|
| Next Message | Scott Ribe | 2011-01-05 15:04:45 | Re: UUID column as pimrary key? |
| Previous Message | Grzegorz Jaśkiewicz | 2011-01-05 14:55:53 | Re: UUID column as pimrary key? |