ulid
ksuid
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ulid | ksuid | |
---|---|---|
11 | 38 | |
4,108 | 4,682 | |
2.0% | 2.2% | |
4.5 | 3.1 | |
13 days ago | 7 months ago | |
Go | Go | |
Apache License 2.0 | MIT License |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
ulid
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Nanosecond timestamp collisions are common
Our Go ULID package has millisecond precision + monotonic random bytes for disambiguation while preserving ordering within the same millisecond. https://github.com/oklog/ulid
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Type-safe, K-sortable, globally unique identifier inspired by Stripe IDs
There is no "tests".
There is just a single test. Which only tests the decoding of a single known value. No encoding test.
Go has infrastructure for benchmarking and fuzzing. Use it!
Also, you took code from https://github.com/oklog/ulid/blob/main/ulid.go which has "Copyright 2016 The Oklog Authors" but this is not mentionned in your base32.go.
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cmackenzie1/go-uuid: library for generating version 4 (random) and version 7 (time-ordered) UUIDs
maybe because of dependencies: https://github.com/oklog/ulid/blob/main/go.mod ??
- The most helpful Go Packages
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UUIDs Are Bad for Database Index Performance, enter UUID7!
Universally Unique Lexicographically Sortable Identifier
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Is it bad to use short (20 chars) random strings as primary keys?
I'm not concerned too much about the performance or the storage size at this stage. I've checked ulids before posting (more specifically https://github.com/oklog/ulid) but the only difference than a random string (especially if you use them with math.rand) is the timestamp prefix which makes them sortable, but I don't need that (users could use the internal SQLite rowid if they needed to sort by a primary key).
- UUIDs Are Popular, but Bad for Performance
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Golang Base Project - A simple web app with user authentication
why are you using https://github.com/oklog/ulid to generate a cookie secret?
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What are your favorite packages to use?
oklog/ulid to generate IDs. coreos/go-oidc for validating JWTs I get from auth. google/go-cmp for comparing structs in tests (unless the project is already using Testify). spf13/pflag because life's too short for Go's flag handling. getkin/kin-openapi for validating reqests/responses against my OpenAPI spec (in tests).
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Keyset pagination using UUID v4 mongodb go
If you just want to roll with an off-the-shelf library, you can use ULID. There are tons of custom made *flake alternatives. If ULID doesn't fit your purposes, look for others.
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?
nanoid - A tiny and fast Go unique string generator
ulid - Universally Unique Lexicographically Sortable Identifier (ULID) in Python 3
xid - xid is a globally unique id generator thought for the web
pg-ulid - ULID Functions for PostgreSQL
gouid - Fast, dependable universally unique ids
nanoid - A tiny (124 bytes), secure, URL-friendly, unique string ID generator for JavaScript
sno - Compact, sortable and fast unique IDs with embedded metadata.
ulid-mssql - Implementation of ULID generator For Microsoft SQL Server
Monoton - Highly scalable, single/multi node, sortable, predictable and incremental unique id generator with zero allocation magic on the sequential generation
python-ksuid - A pure-Python KSUID implementation
goflake - A highly scalable and serverless unique ID generator for use in distributed systems. Written in GoLang. Inspired by Twitters Snowflake.
uuid7 - UUID version 7, which are time-sortable (following the Peabody RFC4122 draft)