Re: [PATCHES] [BUGS] BUG #3326: Invalid lower bound of autovacuum_cost_limit

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.

--
Alvaro Herrera Developer, http://www.PostgreSQL.org/
<inflex> really, I see PHP as like a strange amalgamation of C, Perl, Shell
<crab> inflex: you know that "amalgam" means "mixture with mercury",
more or less, right?
<crab> i.e., "deadly poison"