Re: [GENERAL] pg_upgrade -u

Peter Eisentraut <peter_e@gmx.net> writes:
> On 6/28/13 6:06 PM, Bruce Momjian wrote:
>> On Wed, May 29, 2013 at 09:44:00AM -0400, Peter Eisentraut wrote:
>>> pg_upgrade should somehow be able to find out by itself what the
>>> superuser of the old cluster was.

>> Uh, any idea how to do that?

> select rolname from pg_authid where oid = 10;

But that only works if you've already been able to connect, no?
        regards, tom lane