On 2018-Jul-04, Andres Freund wrote:
> On 2018-07-04 17:02:01 -0400, Alvaro Herrera wrote:
> > On 2018-Jul-04, Andres Freund wrote:
> >
> > > > I think the soonest this can work is to add the column in pg12 so that
> > > > it can be used to upgrade to pg13.
> > >
> > > I don't think we can easily require that everyone pg_upgrading to v13+
> > > upgrades to v12 first?
> >
> > We've never done that, I don't know if we can get away with it.
> > Upgrades with pg_upgrade are not cheap enough for that, methinks.
> > Maybe I'm wrong, but people complain even at a *single* pg_upgrade --
> > seems everybody wants in-place upgrades nowadays ...
>
> Right. That's why I was wondering about making the "last full scan"
> feature backpatchable...
Maybe it's not so bad to make it a reloption in back branches and a
full-fledged column going forward?
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
