cuid VS pg-ulid

Compare cuid vs pg-ulid and see what are their differences.

cuid

Collision-resistant ids optimized for horizontal scaling and performance. (by paralleldrive)

pg-ulid

ULID Functions for PostgreSQL (by edoceo)
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cuid pg-ulid
8 2
3,340 58
1.1% -
2.4 0.0
3 days ago over 4 years ago
JavaScript C
GNU General Public License v3.0 or later -
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
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.

cuid

Posts with mentions or reviews of cuid. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2022-12-07.

pg-ulid

Posts with mentions or reviews of pg-ulid. We have used some of these posts to build our list of alternatives and similar projects. The last one was on 2021-11-09.
  • Lesser Known PostgreSQL Features
    7 projects | news.ycombinator.com | 9 Nov 2021
    Here's one[1], not actively maintained though.

    [1] https://github.com/edoceo/pg-ulid

  • PostgreSQL UUID vs. Serial vs. Identity
    10 projects | news.ycombinator.com | 31 May 2021
    Yeah, just use a UUID unless the bits to store the UUID really are your driving limitation (they're not), having a UUID that is non-linear is almost always the most straight-forward option for identifying things, for the tradeoff of human readability (though you can get some of that back with prefixes and some other schemes). I'm not going to rehash the benefits that people have brought up for UUIDs, but they're in this thread. At this point what I'm concerned about is just... what is the best kind of UUID to use -- I've recently started using mostly v1 because time relationship is important to me (despite the unfortunate order issues) and v6[0] isn't quite so spread yet. Here's a list of other approaches out there worth looking at

    - isntauuid[1] (mentioned in this thread, I've given it a name here)

    - timeflake[2]

    - HiLo[3][4]

    - ulid[5]

    - ksuid[6] (made popular by segment.io)

    - v1-v6 UUIDs (the ones we all know and some love)

    - sequential interval based UUIDs in Postgres[7]

    Just add a UUID -- this almost surely isn't going to be what bricks your architecture unless you have some crazy high write use case like time series or IoT or something maybe.

    [0]: http://gh.peabody.io/uuidv6/

    [1]: https://instagram-engineering.com/sharding-ids-at-instagram-...

    [2]: https://github.com/anthonynsimon/timeflake

    [3]: https://en.wikipedia.org/wiki/Hi/Lo_algorithm

    [4]: https://www.npgsql.org/efcore/modeling/generated-properties....

    [5]: https://github.com/edoceo/pg-ulid

    [6]: https://github.com/segmentio/ksuid

    [7]: https://www.2ndquadrant.com/en/blog/sequential-uuid-generato...

What are some alternatives?

When comparing cuid and pg-ulid you can also consider the following projects:

UUID - :snowflake: A PHP library for generating universally unique identifiers (UUIDs).

ksuid - K-Sortable Globally Unique IDs

Dapper - Dapper - a simple object mapper for .Net

Hasura - Blazing fast, instant realtime GraphQL APIs on your DB with fine grained access control, also trigger webhooks on database events.

tbls - tbls is a CI-Friendly tool for document a database, written in Go.

spec - The canonical spec for ulid

timeflake - Timeflake is a 128-bit, roughly-ordered, URL-safe UUID.

Optimus - 🤖 Id obfuscation based on Knuth's multiplicative hashing method for PHP.

postgres-elasticsearch-fdw - Postgres to Elastic Search Foreign Data Wrapper