Hi,
You can follow below steps:
1. Stop the cluster .
2. If you have backup of old bin and postgresql.conf revert it and start
.
3. Or uninstall and reinstall old binaries again.
On Thu, Jun 2, 2016 at 9:39 AM, Suya Huang <shuang(at)connexity(dot)com> wrote:
> Hi,
>
> Good day all.
>
> I’ve upgraded PG from 9.3.4 to 9.3.13 using apt-get install
> postgresql-9.3. I’m wondering as a blackout plan, how to downgrade it back
> to 9.3.4?
>
> Thanks,
> Suya
>