On Tue, Feb 03, 2026 at 10:55:20PM +0200, Heikki Linnakangas wrote:
> I propose a little refactoring, attached, to replace the "isRegularBackend"
> field in PGPROC with full "backendType".
> 
> Andres briefly suggested this a while back [1]:
> 
> On Fri, 22 Nov 2024 at 22:13, Andres Freund <andres(at)anarazel(dot)de>
> wrote:
>> Or we could have a copy of the backend type in PGPROC.
> 
> but we didn't follow up on that approach. I don't see why, it seems so much
> simpler than what we ended up doing. Am I missing something?

At a glance, it looks reasonable to me.  I don't recall whether I explored
this approach, but at the very least I'm unaware of any reason it wouldn't
work.

> @@ -684,7 +684,7 @@ InitAuxiliaryProcess(void)
>       MyProc->databaseId = InvalidOid;
>       MyProc->roleId = InvalidOid;
>       MyProc->tempNamespaceId = InvalidOid;
> -     MyProc->isRegularBackend = false;
> +     MyProc->backendType = B_INVALID;
>       MyProc->delayChkptFlags = 0;
>       MyProc->statusFlags = 0;
>       MyProc->lwWaiting = LW_WS_NOT_WAITING;

Hm.  So for auxiliary processes, this would always be unset?  That appears
to be alright for today's use-cases, but it could be a problem down the
road.

-- 
nathan


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