Re: [COMMITTERS] pgsql: Reset master xmin when hot_standby_feedback disabled.

Simon Riggs <simon(at)2ndQuadrant(dot)com> writes:
> Reset master xmin when hot_standby_feedback disabled.
> If walsender has xmin of standby then ensure we
> reset the value to 0 when we change from hot_standby_feedback=on
> to hot_standby_feedback=off.

> Branch
> ------
> REL9_2_STABLE

While I'm not necessarily objecting to the content of this patch,
I do have a problem with the process. Where was the discussion of
why this change should be back-patched? (If I'm identifying it
correctly, this is a back-patch of commit bd56e7412, a year and a
half later. That should have been noted in the commit message, too,
rather than leaving people to reconstruct why you'd only committed
into two old branches.)

regards, tom lane