Re: public schema grants to PUBLIC role

## Dominique Devienne (ddevienne@gmail.com):

> Hi. I've recently realized via a post (or article?) from Laurenz that the
> PUBLIC role has CREATE privilege on the 'public' schema by default (see
> query below). I guess it can't be avoided?

You could just use PostgreSQL 15:
https://www.postgresql.org/docs/15/release-15.html#id-1.11.6.7.4

> In particular, we need extensions, which are loaded in public by default.
> Will USAGE of public be enough for LOGIN users having access to the DB to
> use extensions?

Plus any grants on the extension's object.

> More broadly, we want to secure the DB so that all DB access and schema
> access are explicit.
> Anything else to be aware of please, beside the two mentioned above?

Have a look at default privileges and group roles, that will make your
life much easier.
https://www.postgresql.org/docs/15/ddl-priv.html

Regards,
Christoph

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