Re: PGC_S_DEFAULT is inadequate

On Wed, May 11, 2011 at 3:20 AM, Tom Lane <tgl(at)sss(dot)pgh(dot)pa(dot)us> wrote:
> So this is fine if the
> current value was from the file or was the boot_val, but if we'd
> overridden the boot value with a "replacement" default value using
> PGC_S_DEFAULT, that code would cause the value to revert to the boot_val
> not the replacement value.  Not desirable.

Doesn't this mean if you had a setting of timezone in your config file
and remove it and reload you'll get a different value than you would
have if you had actually booted without the line originally?

> My conclusion about all this is that we really need to invent another
> GucSource value falling between PGC_S_DEFAULT and PGC_S_ENV_VAR, called
> perhaps PGC_S_DYNAMIC_DEFAULT

LGTM

--
greg