Re: Rationalizing code-sharing among src/bin/ directories

On Fri, Mar 25, 2016 at 9:52 AM, Tom Lane <tgl@sss.pgh.pa.us> wrote:
> Michael Paquier <michael.paquier@gmail.com> writes:
>> Preventing the use of elog in the frontend is something that has been
>> addressed multiple times with FRONTEND, so that's not likely going to
>> be an issue I think. Andres has mentioned as well having some elog
>> stuff available in frontend..
>
> I'm on board with doing something about that one, though.  There are
> quite a lot of places that could be cleaned up.

Not sure if Andres is working on that for now or not, the main
discussion that I am foreseeing here is how we are going to map elevel
for the frontend (should FATAL, PANIC exit immediately, etc). I think
as well that some sort of callback system would be needed to allow
frontend clients to perform filtering of the log entries. Say
pg_rewind has a --debug mode, so this would map with DEBUG1 entries,
we'd need a way to control if those are issued or not depending on the
frontend call arguments...

Surely that's a cleanup patch 9.7 though, so there are a couple of
months ahead of us... And that's not the highest priority now.
Stability of 9.6 is first and just ahead.
-- 
Michael