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I was going to use UUID with the time portion at the start (also known as UUIDv7) but this looks better.
by rjh29 3y ago
I was going to use UUID with the time portion at the start (also known as UUIDv7) but this looks better.
- heipei 3y agoI've been thinking about converting a legacy application which uses UUIDv4 to use ULIDs instead going forward, but then to represent these ULIDs in a format that is compliant with a UUIDv4. I have not thought through the possible downsides, but I think it should be a pretty straightforward change. Of course old records will remain true random UUIDv4s, but at least new records will be time-order and as such will create less stress on the B-Tree index when writing them.
- gmhafiz 3y agoOne potential downside is ULID does not have an RFC, unlike UUID V7
- rjh29 3y agoGood point. It has libraries in most languages and that's good enough for me, but might be a problem if you're interfacing with other projects.
- samokhvalov 3y agoHopefully, it will soon have it: https://datatracker.ietf.org/doc/html/draft-ietf-uuidrev-rfc4122bis https://datatracker.ietf.org/doc/html/draft-ietf-uuidrev-rfc...
- OJFord 3y agoIt's only mentioned there in 'motivation', a study of trends?