Re: How to restore roles without changing postgres password

"Andrus" <kobruleht2(at)hot(dot)ee> writes:
> How to create backup script which restores all roles and role memberships
> from other server without changing postgres user password.

[ shrug... ] Edit the command(s) you don't want out of the script.
This seems like a mighty random requirement to expect pg_dump to
support out-of-the-box.

I wonder though if there's a case for making that easier by breaking
up the output into multiple ALTER commands. Right now you get
something like

CREATE ROLE postgres;
ALTER ROLE postgres WITH SUPERUSER INHERIT CREATEROLE CREATEDB LOGIN REPLICATION BYPASSRLS PASSWORD 'md5128f0d64bfb424d132c3305b3057281c';

but perhaps we could make it print

CREATE ROLE postgres;
ALTER ROLE postgres WITH SUPERUSER;
ALTER ROLE postgres WITH INHERIT;
ALTER ROLE postgres WITH CREATEROLE;
ALTER ROLE postgres WITH CREATEDB;
ALTER ROLE postgres WITH LOGIN;
ALTER ROLE postgres WITH REPLICATION;
ALTER ROLE postgres WITH BYPASSRLS;
ALTER ROLE postgres WITH PASSWORD 'md5128f0d64bfb424d132c3305b3057281c';

That would make scripted edits a bit easier, and it'd also make the
output a bit more cross-version portable, eg if you try to load the
latter into a version without BYPASSRLS, the rest of the commands
would still work.

regards, tom lane