On 14 February 2017 at 14:19, Seki, Eiji <seki.eiji@jp.fujitsu.com> wrote:
> Hi all,
>
> I propose the patch that adds a function GetOldestXminExtended that is like GetOldestXmin but can ignore arbitrary
vacuumflags. And then, rewrite GetOldestXmin to use it. Note that this is done so as not to change the behavior of
GetOldestXmin.
FWIW, I have changes in the logical decoding on standby patch that
also need to extend GetOldestXmin. Specifically, I need to be able to
return the catalog_xmin separately, rather than the current behaviour
of returning what's effectively min(xmin,catalog_xmin).
It's only loosely related to this change, but may be relevant.
-- Craig Ringer http://www.2ndQuadrant.com/PostgreSQL Development, 24x7 Support, Training & Services
