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Hello, creator here. This is (I hope obviously) just a short snippet you can and should use as a starting point to hack on. For smaller data sets, this is perfectly fine, but if you're at the point where you need this, you will certainly have business-specific requirements that I don't really want to bake into this from the beginning.

Here's my use case: I wrote this because I was (and am) working on a music streaming service, and I needed a youtube-like shortkey for public links to artists, albums etc. For my scale (~10,000 artists, ~120,000 tracks), I haven't run into any problems.

If you do this in your application code, you can just store it as a 64 bit integer in postgres and optimize your index significantly, instead of using a varchar as the backing data type. These ids pack just right into 64 bits.

Could it be backed by a 64bit integer while still exposing it as a well formatted code without relying on application layer intervention.

Curious as to why not simply use UUIDs instead?

Its extremely easy to use uuids as the primary key; make the column a `uuid` type and the `uuid-ossp` extension will generate them. Your sql would look like:


  post_id uuid DEFAULT uuid_generate_v4(),


I'd guess the idea would be to have more succinct URLs.

As to whether or not primary keys should even ever be exposed in URLs, different story.

If you use Postgresql 13 version you don't need to install `uuid-ossp` extension. There's already built-in function to generate UUID which is `gen_random_uuid ()`.

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