Re: pg_upgrade if 'postgres' database is dropped

Bruce Momjian <bruce@momjian.us> writes:
> Robert Haas wrote:
>> that if you're doing something to the database that someone might
>> object to, you oughtn't be doing it to the postgres database either.
>> You should create a database just for pg_upgrade's use and install its
>> crap in there.

> It installs crap in all databases to set oids on system tables,

It seems like you're both confusing the source and target clusters.
None of that stuff gets installed in the source, does it?
        regards, tom lane