Postgres Minimum Version

README states 9.3+ is required. But using 9.4.18 I am seeing errors in Jobs::UpdateUsername

PG::UndefinedFunction: ERROR: function jsonb_build_object(unknown, text, unknown, text, unknown, text, unknown, text) does not exist
LINE 4: jsonb_build_object(

It appears that jsonb_build_object was added in 9.5

2 Likes

Standard install:

# psql --version
psql (PostgreSQL) 10.3 (Ubuntu 10.3-1.pgdg16.04+1

That’s what I’d recommend. You can search here, but I think 10 is required.

2 Likes

@rishabh can you update readme as you have time.

2 Likes

I’ve updated README.md and a few other docs, Thanks @tmm1 :+1:

I’ve just bumped it from 9.3 to 9.5 for now because Ubuntu 16.04 still ships with 9.5 :thinking:

3 Likes

We should really point to 10, since it’s what we use on every install.

PostgreSQL officially supports Ubuntu 16.04: Apt - PostgreSQL wiki

6 Likes

Sure, I’ll change it back to 10!

I chose 9.5 because on a fresh 16.04 droplet:

apt install postgres -> installs 9.5
apt install postgres-10 -> doesn’t have an installation candidate

so our instructions here will not work on 16.04:
https://github.com/discourse/discourse/blob/master/docs/DEVELOPER-ADVANCED.md#preparing-a-fresh-ubuntu-install

Can I update that guide to say Postgres 10 & Ubuntu 18.04?

2 Likes

Yes, the guide should point to the official PostgreSQL docs for installation, so it will work in any distro/version.

6 Likes

Awesome, it is done: https://github.com/discourse/discourse/commit/0dd98982ebc1c44c81d6d3d441a9374893bc58c2 :balloon:

6 Likes