Re: pg_upgrade fails, "mismatch of relation OID" - 9.1.9 to 9.2.4

"Evan D. Hoffman" <evandhoffman@gmail.com> writes:
> (The file referenced in the error was
> /var/lib/pgsql/9.1/data/base/16406/3016054)

I'm not sure about how pg_upgrade manages its output, but it seems
entirely possible that that was the last file successfully transferred,
not the one the error occurred on.

> Looks like it IS the same OID every time, referencing an index.

What index exactly?  Anything different about that index (or its
table) from others in the database?

            regards, tom lane