Re: Latest version of Hot Standby patch

On Fri, 2008-12-19 at 10:59 +0200, Heikki Linnakangas wrote:
> Simon Riggs wrote:
> > * corner case behaviour of backendids - bgwriter writes checkpoint WAL
> > records. Has no backendid, but needs a slotid (possibly others)
> 
> Why does bgwriter need a slotid? It doesn't run any transactions.
> 
> > * slotids are assigned once and never changed, so allowing them to be
> > used as array lookups directly
> 
> So are backend ids.

I'm a little hazy, to be sure. I'm pretty sure there was a blocker, but
if I cannot recall it we should assume it doesn't exist.

Where are you going with the thought? Remove slotId from each proc and
then use backendId to identify the recovery proc?

-- Simon Riggs           www.2ndQuadrant.comPostgreSQL Training, Services and Support