Re: UUID or auto-increment

Peter J. Holzer <hjp-pgsql@hjp.at>

From: "Peter J. Holzer" <hjp-pgsql@hjp.at>
To: pgsql-general@lists.postgresql.org
Date: 2020-08-10T20:06:10Z
Lists: pgsql-general
On 2020-08-10 09:10:00 -0800, Israel Brewster wrote:
> I would point out, however, that using a V1 UUID rather than a V4 can
> help with this as it is sequential, not random (based on MAC address
> and timestamp + random).

If I read the specs correctly, a V1 UUID will roll over every 429
seconds. I think that as far as index locality is concerned, this is
essentially random for most applications.

        hp

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