Re: UUID v7

From: Masahiko Sawada <sawada(dot)mshk(at)gmail(dot)com>
To: "Andrey M(dot) Borodin" <x4mmm(at)yandex-team(dot)ru>
Cc: Sergey Prokhorenko <sergeyprokhorenko(at)yahoo(dot)com(dot)au>, Jelte Fennema-Nio <postgres(at)jeltef(dot)nl>, Michael Paquier <michael(at)paquier(dot)xyz>, Aleksander Alekseev <aleksander(at)timescale(dot)com>, pgsql-hackers mailing list <pgsql-hackers(at)postgresql(dot)org>, Peter Eisentraut <peter(at)eisentraut(dot)org>, Przemysław Sztoch <przemyslaw(at)sztoch(dot)pl>, "David G(dot) Johnston" <david(dot)g(dot)johnston(at)gmail(dot)com>, Mat Arye <mat(at)timescaledb(dot)com>, Matthias van de Meent <boekewurm+postgres(at)gmail(dot)com>, Nikolay Samokhvalov <samokhvalov(at)gmail(dot)com>, Junwang Zhao <zhjwpku(at)gmail(dot)com>, Stepan Neretin <sncfmgg(at)gmail(dot)com>
Subject: Re: UUID v7
Date: 2024-11-18 21:16:09
Message-ID: CAD21AoB5WJ1ENg4=yUUHDNfd8k72CU6FKiF_b5cE=Gtsyb7Amw@mail.gmail.com
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On Sun, Nov 17, 2024 at 10:39 AM Andrey M. Borodin <x4mmm(at)yandex-team(dot)ru> wrote:
>
>
>
> > On 17 Nov 2024, at 00:06, Andrey M. Borodin <x4mmm(at)yandex-team(dot)ru> wrote:
> >
> > v31
>
> There was a problem with MingWG build. I've considered all options and decided to include all necessary stuff into instr_time.h. So much fuss for these 2 bits about nanoseconds :)
>

I realized that what we do in get_real_time_ns() on Windows is
essentially the same as what we do in gettimeofday(). Probably we can
just do either clock_gettime() with CLOCK_REALTIME on unix-like
systems and gettimeofday() on Windows, and then don't change anything
in instr_time.h? We need to explain why we don't use gettimeofday() on
unix-like systems in get_real_time_ns() function.

Regards,

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

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  • Re: UUID v7 at 2024-11-17 18:39:18 from Andrey M. Borodin

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