Bruce Momjian <bruce@momjian.us> writes:
> Looking at the pg_upgrade code some more, I found that it was not
> removing the PG_VERSION file when deleting <= 8.4 tablespace files.
> This might confuse administrators so the attached patch adds the removal
> of PG_VERSION. I would like to apply this to master and 9.0.X.
... why is that a good idea?
regards, tom lane