Matthew T. O'Connor wrote:
> Alvaro Herrera wrote:
> >Tom Lane wrote:
> >>Alvaro Herrera <alvherre(at)commandprompt(dot)com> writes:
> >>>But this is misleading (started postmaster with good value, then edited
> >>>postgresql.conf and entered "-2"):
> >>>17903 LOG: received SIGHUP, reloading configuration files
> >>>17903 LOG: -2 is outside the valid range for parameter
> >>>"autovacuum_vacuum_cost_limit" (-1 .. 1000)
> >>>Note how it still says the range is -1 .. 1000.
> >>Can we redefine things to make zero be the "disabled" value, thus
> >>keeping the range of valid values contiguous?
> >
> >That would be another solution ... though it would be different from the
> >valid value for autovacuum_vacuum_cost_delay (on which 0 is a valid
> >value). Also it would be a different value from previous versions.
> >
> >I don't think either of these is a showstopper, so let's go for that if
> >nobody objects.
>
> Can you make 0 and -1 both valid disabled values? That way it will be
> compatible with previous releases.
Heh, sure, we can do that too and it doesn't seem like anybody would
object. I will patch the documentation so that that the "disabled"
value is zero, and still allow -1. That way it doesn't seem like there
should be any objection.
--
Alvaro Herrera http://www.flickr.com/photos/alvherre/
"Escucha y olvidarás; ve y recordarás; haz y entenderás" (Confucio)