Robert Haas wrote:
> On Fri, Feb 10, 2017 at 3:30 AM, Simon Riggs <> wrote:
> > We've added xmin info to pg_stat_activity and pg_stat_replication, but
> > VACUUM doesn't yet report which xmin value it used when it ran.
> >
> > Small patch to add this info to VACUUM output.
> It seems sensible to me to do something like this.  We already report
> a lot of other fine details, so what's one more?  And it could be
> useful.

Yeah, I can see how this can be useful to debug some hard-to-track
problems.  The patch looks sensible to me.

Álvaro Herrera      
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services

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