Re: Make description of heap records more talkative for flags

Hi all,

Bellow a 1¢ on feedback from a side project about this.

On Mon, 23 Apr 2018 12:37:20 -0300
Alvaro Herrera <alvherre(at)alvh(dot)no-ip(dot)org> wrote:

> Michael Paquier wrote:
> > On Thu, Apr 12, 2018 at 08:49:03PM -0700, Andres Freund wrote:
> > > OTOH, that also kinda bloats the output noticeably... I'm somewhat
> > > inclined to just put the hex value or such there?
> >
> > That would do as well for me.
>
> Me too. Should we consider this for pg11? My vote is yes, with no
> backpatch (might break scripts reading pg_{wal,xlog}dump output.
> Though, really!?).

Yes, we are using pg_{wal,xlog}dump in PAF project to check a controlled
switchover is safe.

We use it to check that the designated standby to promote received the shutdown
checkpoint from the old master when PAF shut it down before starting it again
as a regular standby. It allows us to safely hook the old master as a standby
on the new master without xact loss and/or using pg_rewind.

I suppose we can deal with the format output change though.