The dashes do not take up any space, they are not encoded. I think it's fairly c... | Hacker News

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		rossant on Oct 2, 2023 \| parent \| context \| favorite \| on: Goodbye integers, hello UUIDv7 The dashes do not take up any space, they are not encoded. I think it's fairly common to reserve some space to versions and ECC in uuids, packets etc. That's a price to pay to avoid many bugs and compatibility issues.

Traubenfuchs on Oct 2, 2023 [–]

UUIDs are often pushed around in JSON and as string types, including the none random parts.

BeFlatXIII on Oct 2, 2023 | [–]

Do those dashes cause any meaningful performance impact, or is this just a microoptimization obsession?

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