Re: Questions about the new subscription parameter: password_required
Jeff Davis <pgsql@j-davis.com>
From: Jeff Davis <pgsql@j-davis.com>
To: Robert Haas <robertmhaas@gmail.com>, Benoit Lobréau <benoit.lobreau@dalibo.com>
Cc: pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2023-09-23T01:57:19Z
Lists: pgsql-hackers
On Fri, 2023-09-22 at 08:36 -0400, Robert Haas wrote: > On Fri, Sep 22, 2023 at 4:25 AM Benoit Lobréau > <benoit.lobreau@dalibo.com> wrote: > > Can we consider adding something like this to clarify? > > > > """ > > This parameter is enforced when the CREATE SUBSCRIPTION or ALTER > > SUBSCRIPTION .. CONNECTION commands are executed. Therefore, it's > > possible to alter the ownership of a subscription with > > password_required=true to a non-superuser. > > """ > > I'm not sure of the exact wording, but there was another recent > thread > complaining about this being unclear, so it seems like some > clarification is needed. IIUC there is really one use case here, which is for superuser to define a subscription including the connection, and then change the owner to a non-superuser to actually run it (without being able to touch the connection string itself). I'd just document that in its own section, and mention a few caveats / mistakes to avoid. For instance, when the superuser is defining the connection, don't forget to set password_required=false, so that when you reassign to a non-superuser then the connection doesn't break. Regards, Jeff Davis