Re: Problem with pg_upgrade (8.4 -> 9.0) due to ALTER DATABASE SET ROLE

Tom Lane wrote:
> Bruce Momjian <bruce(at)momjian(dot)us> writes:
> > We could modify pg_dump to emit RESET AUTHORIZATION in --binary-upgrade
> > mode. I am unclear if that might cause some other problems though.
>
> I finally figured out what was really bugging me about that proposal:
> it's a one-shot hack for fixing one problem that could arise from
> non-default ALTER DATABASE/ALTER ROLE settings. Who's to say there
> are not other such issues, either now or in the future?
>
> It occurs to me that a more principled way to deal with this class of
> problems would be to delay restoring ALTER DATABASE/ALTER ROLE
> settings until after everything else is done. Not sure what the
> implementation consequences of that would be. Ideally we'd make
> pg_dumpall output work that way in general, not just for pg_upgrade.

Yep, it feels like a one-off that no one else will ever hit, and there
are certainly other ALTER DATABASE SET commands that could also obstruct
a restore.

--
Bruce Momjian <bruce(at)momjian(dot)us> http://momjian.us
EnterpriseDB http://enterprisedb.com

+ It's impossible for everything to be true. +