Re: GUID for postgreSQL

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От John DeSoi
Тема Re: GUID for postgreSQL
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Msg-id 7D6824F2-9614-4DC4-B49C-C087FD6CEEA4@pgedit.com
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Ответ на Re: GUID for postgreSQL  (Scott Marlowe <smarlowe@g2switchworks.com>)
Ответы Re: GUID for postgreSQL
Re: GUID for postgreSQL
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On Jul 27, 2005, at 4:46 PM, Scott Marlowe wrote:

> So, how can two databases, not currently talking to one another,
> guarantee that their GUIDs don't collide? using a large randomly
> generated name space only reduces the chances of collision, it doesn't
> actually guarantee it.


Like MD5, there is no 100% guarantee, but the collision possibility
supposed to be is very close to zero.


See http://en.wikipedia.org/wiki/GUID


John DeSoi, Ph.D.
http://pgedit.com/
Power Tools for PostgreSQL


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