David Steele wrote:
> On 7/15/16 5:47 PM, Alvaro Herrera wrote:
> > I can't quite make up my mind about it. It seems pointless to change
> > it now, but at the same time it seems wrong to let it continue to be
> > unchanged from 9.4.
> >
> > I slightly lean towards changing it in 9.6.
>
> +1 for changing it. However, I don't think it's such a big deal since
> each version since 8.3 (at least) has had a unique catalog version.
>
> Maybe this would affect pg_controldata or other supporting utilities but
> the server itself should not be affected since it also checks the
> catalog version.
I didn't verify pg_resetxlog behavior, but hypothetically running 9.4's
on a 9.5 installation would result in a broken pg_control file.
--
Álvaro Herrera http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services