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From: Tom Lane <[email protected]>
To: Graham Leggett <[email protected]>
Cc: [email protected]
Subject: Re: Grant read-only access to exactly one database amongst many
Date: Sun, 04 Feb 2024 19:53:52 -0500
Message-ID: <[email protected]> (raw)
In-Reply-To: <[email protected]>
References: <[email protected]>

Graham Leggett <[email protected]> writes:
> Trouble is, I can create tables in db1 which is write access. I can also connect to db2 (bad), and I can enumerate the tables in db2 (bad), although the queries of the contents say access is denied.

You need to read the docs about default privileges: see about
halfway down

https://www.postgresql.org/docs/15/ddl-priv.html

where it says "PostgreSQL grants privileges on some types of objects
to PUBLIC by default ...".  In this case I think you likely need to
revoke the default public CREATE privilege on schema public in db1,
and revoke the default public CONNECT privilege on database db2.

			regards, tom lane

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