Ash Elixir•3y ago

Ash-Postgres and uuidv7

This might be an Ecto question. If I add a Postgres function uuidv7(), can Ash use it when creating new resource instances? If not, could Ash use such a function in Elixir (that would probably be faster anyway).

4 Replies

ZachDaniel•3y ago

You can create a custom type and configure the migration default for the attributes in resources so it gets set in the db (although ash will always set it in application logic if it’s got a default). attribute :id, YourUUID, primary_key?: true, default: &YourUUID.generate/0

postgres do
  migration_defaults id: “fragment(\”uuidv7()\”)”
end

postgres do
  migration_defaults id: “fragment(\”uuidv7()\”)”
end

I think something along those lines

TerrisOP•3y ago

Awesome! Thank you!

TerrisOP•3y ago

FYI.. uuidv7 support in Elixir https://github.com/bitwalker/uniq

GitHub

GitHub - bitwalker/uniq: Provides UUID generation, parsing, and for...

Provides UUID generation, parsing, and formatting. Supports RFC 4122, and the v6 draft extension - GitHub - bitwalker/uniq: Provides UUID generation, parsing, and formatting. Supports RFC 4122, and...

TerrisOP•3y ago

And why.. https://blog.devgenius.io/analyzing-new-unique-identifier-formats-uuidv6-uuidv7-and-uuidv8-d6cc5cd7391a

Medium

Analyzing New Unique Identifier Formats (UUIDv6, UUIDv7, and UUIDv8)

A dive into the new proposed UUID versions. What do they offer and how do they work.

Gaming

Programming

Ash-Postgres and uuidv7

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