Alvaro Herrera <> writes:
> 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.

If we go with #2, there would immediately be a need for a union view,
which would end up being exactly the same thing as the expanded display
proposed in #1.  Seems like the hard way, so I agree with Alvaro.

                        regards, tom lane

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