From: | Alexander Lakhin <exclusion(at)gmail(dot)com> |
---|---|
To: | Michael Paquier <michael(at)paquier(dot)xyz> |
Cc: | Sami Imseih <samimseih(at)gmail(dot)com>, jian he <jian(dot)universality(at)gmail(dot)com>, Anthonin Bonnefoy <anthonin(dot)bonnefoy(at)datadoghq(dot)com>, Andrei Lepikhov <lepihov(at)gmail(dot)com>, kaido vaikla <kaido(dot)vaikla(at)gmail(dot)com>, "pgsql-hackers(at)lists(dot)postgresql(dot)org" <pgsql-hackers(at)lists(dot)postgresql(dot)org> |
Subject: | Re: query_id, pg_stat_activity, extended query protocol |
Date: | 2024-10-03 19:00:00 |
Message-ID: | b37d8e6c-e83d-e157-8865-1b2460a6aef2@gmail.com |
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Lists: | pgsql-hackers |
Hello Michael,
02.10.2024 06:29, Michael Paquier wrote:
> On Wed, Oct 02, 2024 at 06:00:00AM +0300, Alexander Lakhin wrote:
>> Fortunately, it's still pretty warm here, so I'm wearing T-shirt and my
>> sleeve isn't long enough for that, but if you gave me 2-3 days, I would
>> focus on researching this area...
> Sure, thanks. I am also spending a few days thinking about patterns
> around that before doing anything. The buildfarm is green, so there
> is some flebxibility.
I've managed to falsify the Assert in ExecutorRun() with the following:
SET compute_query_id = 'off';
SET track_activities = 'off';
CREATE PROCEDURE p1()
LANGUAGE plpgsql
AS $$
BEGIN
PERFORM 1;
END;
$$;
CREATE PROCEDURE p2(x int)
LANGUAGE plpgsql
AS $$
BEGIN
IF x = 1 THEN
SET track_activities = 'on';
SET compute_query_id = 'on';
END IF;
CALL p1();
END;
$$;
CALL p2(0);
CALL p2(1);
TRAP: failed Assert("!IsQueryIdEnabled() || !pgstat_track_activities || !debug_query_string || pgstat_get_my_query_id()
!= 0"), File: "execMain.c", Line: 312, PID: 3765791
Best regards,
Alexander
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