On Thu, Apr 2, 2015 at 5:35 PM, Craig Ringer <craig(at)2ndquadrant(dot)com> wrote:
> I started bisecting from e6df2e1 (stamp 9.4beta1, good) to 095d401 (bad).
> The problem revision appears to be 9402869:
>
> commit 9402869
> Author: Heikki Linnakangas <heikki(dot)linnakangas(at)iki(dot)fi>
> Date: Sat Jan 17 01:14:32 2015 +0200
>
> Advance backend's advertised xmin more aggressively.
This rings a bell, I reported a similar issue some weeks back:
http://www.postgresql.org/message-id/CAB7nPqQSdx7coHk0D6G=mkJntGYjXPDw+PWisKKSsAeZFTskvg@mail.gmail.com
And there is a patch.
--
Michael