Bruce Momjian píše v čt 19. 02. 2009 v 08:08 -0500:
> > you should use vacuum_freeze_min_age instead. On other side it
> breaks
> > vacuumdb backward compatibility which we did not declare, but it
> could
> > be fine.
>
> How does adding a flag break backward compatibiity?
>
I meant that vacuum_freeze_min_age was introduced in 8.2 and cannot be
used for older database. if you use it you cannot run vacuumdb freeze on
8.1 and older. See Peter's list of backward compatible applications.
Zdenek