pg_idkit VS pgx

Unfortunately, as of PostgreSQL 16, UUIDv7 are not yet supported out of the box. For the time being, use an extension such as pg_uuidv7 or pg_idkit to generate UUIDv7 e.g. as default primary key when you CREATE new records.

If you like this (I do very much), you might also like pg_idkit[0] which is a little extension with a bunch of other kinds of IDs that you can generate inside PG, thanks to the seriously awesome pgrx[1] and Rust.

[0]: https://github.com/VADOSWARE/pg_idkit

[1]: https://github.com/pgcentralfoundation/pgrx

Yup this is one of the reasons I put together a light extension for this:

https://github.com/VADOSWARE/pg_idkit

There are a lot of options for UUID extensions (lots of great pure SQL ones!), but I wanted to get as many ID generation strategies in one place

Also note that native UUID v7 is slated to land in pg17:

https://commitfest.postgresql.org/44/4388/

https://github.com/ulid/spec/issues

I went through this exploration a while back for a new project and decided on uuidv7s, which are binary compatible with ULIDs but will likely find more support as they get added to the original UUID RFC.

Either UUIDv7 or XIDs seem like better choices than ULIDs for new projects.

* Supabase on different primary key considerations: https://supabase.com/blog/choosing-a-postgres-primary-key

* Postgres extension for generating various kinds of IDs: https://github.com/VADOSWARE/pg_idkit

I also made an issue in the repo so eventually I should get to expanding the benchmark set as well.

It uses pgx (https://github.com/tcdi/pgx) which is our more generalized framework for developing Postgres extensions with Rust.

It's a great question, considering I've been using Rust for a number of years now, and I generally advocate its use for its rich ecosystem, safety and tooling. I actively contribute to pgx, a library for building Postgres extensions in Rust. Yet, Omnigres appears to be all done in C.

Our release today is a framework which extends this functionality to other databases/systems. If you’re familiar with Multicorn[1] or Steampipe[2], then it’s very similar. The framework is written in Rust, using the excellent pgx[3].

We have developed FDWs for Stripe, Firebase, BigQuery, Clickhouse, and Airtable (all in various “pre-release” states). The plan is to focus on the tools we’re using internally while we stabalize the framework.

There’s a lot in the blog post into our goals for this release. It’s early, but one of the things I’m most excited about.

[0] Postgres FDW: [https://www.postgresql.org/docs/current/sql-createforeigndat...

[1] Multicorn: https://multicorn.org/

[2] Steampipe: https://steampipe.io/

[2] pgx: [https://github.com/tcdi/pgx](https://github.com/tcdi/pgx)

BTW one nice easter egg is that with pgx there is actually no reason that we can't build even better search solutions inside the database itself.

> That thread led me to a project/product idea where you take an existing Postgres instance used for normal products or whatever, replicate it to various read only clusters with a custom search extension loaded and some orchestrator sitting on top (I’ve written most of one in rust that uses 0mq to communicate with it’s nodes) and create drop in search from existing databases with a nice guided web gui for automatic tuning suitable for most business use cases.

Very interesting idea -- just want to add one thing, write it in rust (with pgx?[0]) :)

[0]: https://github.com/tcdi/pgx

Hey HN,

It turns out choosing a good database-optimized UUID (and deciding whether to use serial, etc) isn't quite so simple, and I finally got a chance to do some exploration, write about it[0].

One of the reasons Postgres is the best open source database out there is it's extensibility -- so I hacked up a small extension for generating some of the more exotic (but crucially, lexicograhically sortable) UUID generation mechanisms:

https://github.com/t3hmrman/pg_idkit

This idea has been bumbling around my head for a while, but I finally got a chance to build it while working with Supabase on a post about IDs[0]!

Most of the heavy lifting is done by pgx[1] which is an amazing framework for building Postgres extensions in Rust. I think we are very early to the trend of amazing postgres extensions built in Rust, and it's yet another reason that it's an exciting time to be all-in on Postgres.

[0]: https://supabase.com/blog/choosing-a-postgres-primary-key

[1]: https://github.com/tcdi/pgx

[0]: https://supabase.com/blog/choosing-a-postgres-primary-key

The extension is still WIP but for those of ya'll that like Rust it's built on pgx which has excellent DX. The rust involved isn't complicated -- I'm basically laundering the functionality from other crates that are listed in the README.md.

Seems to be using this: https://github.com/tcdi/pgx

- https://github.com/furstenheim/is_jsonb_valid

pgx[0] is going to be pretty revolutionary for the postgres ecosystem I think -- there is so much functionality that can be utilized at the database level and I can't think of a language I want to do it with more than Rust.

[0]: https://github.com/tcdi/pgx