Horton

Re: UUID v7

Masahiko Sawada <sawada.mshk@gmail.com>

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From: Masahiko Sawada <sawada.mshk@gmail.com>
To: Jelte Fennema-Nio <postgres@jeltef.nl>
Cc: Sergey Prokhorenko <sergeyprokhorenko@yahoo.com.au>, Przemysław Sztoch <przemyslaw@sztoch.pl>, "Andrey M. Borodin" <x4mmm@yandex-team.ru>, Michael Paquier <michael@paquier.xyz>, Aleksander Alekseev <aleksander@timescale.com>, pgsql-hackers mailing list <pgsql-hackers@postgresql.org>, Peter Eisentraut <peter@eisentraut.org>, "David G. Johnston" <david.g.johnston@gmail.com>, Mat Arye <mat@timescaledb.com>, Matthias van de Meent <boekewurm+postgres@gmail.com>, Nikolay Samokhvalov <samokhvalov@gmail.com>, Junwang Zhao <zhjwpku@gmail.com>, Stepan Neretin <sncfmgg@gmail.com>
Date: 2024-11-26T23:11:15Z
Lists: pgsql-hackers

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On Tue, Nov 26, 2024 at 1:55 PM Jelte Fennema-Nio <postgres@jeltef.nl> wrote:
>
> On Tue, 26 Nov 2024 at 21:48, Sergey Prokhorenko
> <sergeyprokhorenko@yahoo.com.au> wrote:
> > gen_uuidv7() is OK
>
> I'd very much prefer to not have a gen_ or get_ prefix as argued before[1][2].
>
> My vote is still for simply uuidv7() and uuidv4()
>
> > uuid-ossp is outdated, slow and not supported by the author. UUIDv7 is the renaissance of UUIDs. So we should not depend on legacy technology names
>
> agreed
>

It seems that we agreed to use 'uuidv7' instead of 'uuid_v7()'. There
is discussion whether we should add 'gen_' or 'get_' but let's go back
to the previously-agreed function name 'uuidv7()' for now. We can
rename it later if we find a better name.

I've attached the new version patch that incorporated all comments and
renamed the functions. Also I avoided using 'if defined(__darwin__) ||
defined(_MSC_VER)' twice.


Regards,

--
Masahiko Sawada
Amazon Web Services: https://aws.amazon.com

Commits

  1. Fix timestamp overflow in UUIDv7 implementation.

  2. Add UUID version 7 generation function.

  3. Add some UUID support functions