Mike Wilson <mfwil...@gmail.com> writes:
> I've had some time to examine this closer over the weekend.  It
> appears that pg_upgrade for 9.2b2 segfaults which more than likely has
> something to do with the resulting converted database appearing to
> have no rows.

Yeah, more than likely :-(.  Could we see a stack trace from the
segfault?

> Of possible note in this DB is that the previous DBA renamed the
> "postgres" user.

Hmm.  There is a known bug in beta2 that's triggered by old and new
clusters not having the same name for the bootstrap superuser; although
I don't recall that the symptoms included a segfault.  In any case,
I'd suggest making sure the new cluster is initdb'd under the same
account that currently owns the old cluster.

                        regards, tom lane

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