Bruce Momjian <pgman@candle.pha.pa.us> writes:
> You have recreated what pg_upgrade does. It is for upgrading system
> tables. If only your system tables were hosed, you are fine now.
Er, not unless he did exactly the right fancy footwork with pg_log and
vacuum. Or have you forgotten how tricky it was to get pg_upgrade to
work reliably?
regards, tom lane