Re: UUID column as pimrary key?
От | Mike Christensen |
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Тема | Re: UUID column as pimrary key? |
Дата | |
Msg-id | AANLkTi=2s6Q_16yzj8-iYa2=9stGE-mtxJjJk4YAOnji@mail.gmail.com обсуждение исходный текст |
Ответ на | Re: UUID column as pimrary key? (Grzegorz Jaśkiewicz <gryzman@gmail.com>) |
Ответы |
Re: UUID column as pimrary key?
Re: UUID column as pimrary key? |
Список | pgsql-general |
2011/1/5 Grzegorz Jaśkiewicz <gryzman@gmail.com>: > On Wed, Jan 5, 2011 at 2:37 PM, Scott Ribe <scott_ribe@elevated-dev.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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