On Thu, 30 Aug 2007, Magnus Hagander wrote:
> There's your problem right there: it does *not* mean that the default
> setting would be effective. It means that the setting won't be changed.
> Remove the comment and set it to false, and it'll work.
> (if you restart the server instead of reload it *will* fall back to the
> default, which isn't very consistent)
>
> This is a known problem (though arguably not actually a bug) but it's far
> from trivial to fix which is why it hasn't been fixed yet.
>
Actually this will be fixed in 8.3:
http://archives.postgresql.org/pgsql-committers/2007-03/msg00097.php
Kris Jurka