Re: exposing wait events for non-backends (was: Tracking wait event for latches)

Robert Haas wrote:

> So, one of the problems in this patch as committed is that for any
> process that doesn't show up in pg_stat_activity, there's no way to
> see the wait event information.  That sucks.  I think there are
> basically two ways to fix this:
> 
> 1. Show all processes that have a PGPROC in pg_stat_activity,
> including auxiliary processes and whatnot, and use some new field in
> pg_stat_activity to indicate the process type.
> 
> 2. Add a second view, say pg_stat_system_activity, to show the
> processes that don't appear in pg_stat_activity.  A bunch of columns
> could likely be omitted, but there would be some duplication, too.
> 
> Preferences?

I vote 1.

-- 
Álvaro Herrera                https://www.2ndQuadrant.com/
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