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afid
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Type-safe, K-sortable, globally unique identifier inspired by Stripe IDs
Neat, I like the type safe prefix idea.
Personally, I rarely find I need ids to be sortable, so I just go with pure randomness.
I also like to split out a part of the random section into a tag that is easier for me to visually scan and match up ids in logs etc.
I call my ID format afids [0]
[0] https://github.com/aJanuary/afid
ksuid
- What happens after 100 years?
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Zero Downtime Postgres Upgrades
OP here - we avoid sequences in all but one part of our application due to a dependency. We use [KSUIDs][1] and UUID v4 in various places. This one "gotcha" applies to any sequence, so it's worth calling out as general advice when running a migration like this.
[1]: https://segment.com/blog/a-brief-history-of-the-uuid/
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Bye Sequence, Hello UUIDv7
UUID v4 isn't large enough to prevent collisions, that is why segment.io created https://github.com/segmentio/ksuid which is 160bit vs the 128bit of a UUIDv4.
- You Don't Need UUID
- A Brief History of the UUID
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Type-safe, K-sortable, globally unique identifier inspired by Stripe IDs
Assuming you don't need to use UUIDv7 (or any UUID's) then https://github.com/segmentio/ksuid provides a much bigger keyspace. You could just append a string prefix if you wanted to namespace, but the chance of collisions of a KSUID is many times smaller than a UUID of any version.
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Unexpected downsides of UUID keys in PostgreSQL
KSUID's are have temporal-lexicographical order plus 128 bits of entropy, which is more than UUIDv4.
https://github.com/segmentio/ksuid
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UUIDs are so much better than autoincrementing ids and it's not even close
That's why you use ksuid (https://segment.com/blog/a-brief-history-of-the-uuid/) or, if you're willing to go with a draft spec you could go with the new UUID formats https://www.ietf.org/archive/id/draft-ietf-uuidrev-rfc4122bi...
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What Happened to UUIDv2?
Interesting in more history of UUIDs? Twilio Segment's blog has an amazing history lesson about how they came to be.
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Which UUID package do you use? and why?
I use the ksuid from segment. https://github.com/segmentio/ksuid
What are some alternatives?
typeid-go - Go implementation of TypeIDs: type-safe, K-sortable, and globally unique identifiers inspired by Stripe IDs
ulid - Universally Unique Lexicographically Sortable Identifier (ULID) in Python 3
typeid - Type-safe, K-sortable, globally unique identifier inspired by Stripe IDs
pg-ulid - ULID Functions for PostgreSQL
resource-id - Developer-friendly k-sortable IDs
nanoid - A tiny (124 bytes), secure, URL-friendly, unique string ID generator for JavaScript
js-id - ID generation for JavaScript & TypeScript Applications
ulid-mssql - Implementation of ULID generator For Microsoft SQL Server
rust-ksuid - A pure-Rust KSUID implementation
python-ksuid - A pure-Python KSUID implementation
typeid-ts - TypeID UUIDv7 implementation in Typescript (Lib and CLI)
uuid7 - UUID version 7, which are time-sortable (following the Peabody RFC4122 draft)