Re: Show dropped users' backends in pg_stat_activity

24.03.2016, 18:03, Tom Lane kirjoitti:
> Robert Haas <robertmhaas(at)gmail(dot)com> writes:
>> I am not really in favor of half-fixing this. If we can't
>> conveniently wait until a dropped role is completely out of the
>> system, then I don't see a lot of point in trying to do it in the
>> limited cases where we can. If LEFT JOIN is the way to go, then,
>> blech, but, so be it.
>
> I concur. Let's put the left join(s) into those views and call it
> good.
>
> BTW, I think we would need the left joins even if we had interlocking
> in DROP, just to protect ourselves against race conditions. Remember
> that what pg_stat_activity shows is a snapshot, which might be more or
> less out of date compared to the catalog contents.

Added my patch to the 2016-09 commitfest
(https://commitfest.postgresql.org/10/601/) as a bug fix as I thought
not showing all backends in pg_stat_activity is a bug. Any chance to
get it in 9.6?

--
Oskari Saarenmaa
Aiven: managed cloud databases
https://aiven.io