lexid
Ulid
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lexid
Ulid
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How to use performant Guid as primary keys in databases. UUID Version 7 to the rescue!
Side note, an interesting thing to add to your benchmarks would be ULID https://github.com/Cysharp/Ulid
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New UUID Formats – IETF Draft
I’m using Postgres so I actually have it a little easier with its native sort order. I switched from NUlid that I was using from years back to this one [0], and the default .ToGuid() gets the desired sort order when used with Npgsql. Likewise though, no db-side generation of uuid - then again, isn’t that the benefit of using globally unique identifiers in the first place, to avoid needing to rely on the db to generate conflict-free identifiers, skipping HiLo or sequences, etc.
Anyway, nice to meet another .NET Ulid user in the wild!
0: https://github.com/Cysharp/Ulid
What are some alternatives?
ulid-mssql - Implementation of ULID generator For Microsoft SQL Server
uuid6-ietf-draft - Next Generation UUID Formats
shortuuid.rb - Convert UUIDs & numbers into space efficient and URL-safe Base62 strings, or any other alphabet.
ksuid - K-Sortable Globally Unique IDs
spec - The Score Specification provides a developer-centric and platform-agnostic Workload specification to improve developer productivity and experience. It eliminates configuration inconsistencies between environments.
uulid.go - ULID-UUID compatibility library for generating and parsing ULIDs.
spec - The canonical spec for ulid
Entity Framework - EF Core is a modern object-database mapper for .NET. It supports LINQ queries, change tracking, updates, and schema migrations.