Re: UUID v7

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От Aleksander Alekseev
Тема Re: UUID v7
Дата
Msg-id CAJ7c6TPo8Pe8vWzum5g4m8PdXMO=ftRCmpaYnhXmovsepYQ1CA@mail.gmail.com
обсуждение исходный текст
Ответ на Re: UUID v7  ("Andrey M. Borodin" <x4mmm@yandex-team.ru>)
Ответы Re: UUID v7
Список pgsql-hackers
Дерево обсуждения 
Hi,

> Also, please not that uuidv7(time+1us) and uuidv7(time) will have the same internal timestamp, so despite time+1us >
time,still second uuid will be greater.
 
>
> Both invariants you proposed cannot be reasonably guaranteed. Upholding any of them greatly reduces usability of UUID
v7.

Again, personally I don't insist on the 1us precision [1]. Only the
fact that timestamp from the far past generates UUID from the future
bothers me.

[1]: https://postgr.es/m/CAJ7c6TPCSprWwVNdOB%3D%3DpgKZPqO5q%3DHRgmU7zmYqz9Dz5ffVYw%40mail.gmail.com

-- 
Best regards,
Aleksander Alekseev

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