Horton

Re: expose parallel leader in CSV and log_line_prefix

Michael Paquier <michael@paquier.xyz>

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From: Michael Paquier <michael@paquier.xyz>
To: Julien Rouhaud <rjuju123@gmail.com>
Cc: Daniel Gustafsson <daniel@yesql.se>, Justin Pryzby <pryzby@telsasoft.com>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2020-07-10T02:09:40Z
Lists: pgsql-hackers 
On Thu, Jul 09, 2020 at 01:53:39PM +0200, Julien Rouhaud wrote:
> Sure!  I've been quite busy with internal work duties recently but
> I'll review this patch shortly.  Thanks for the reminder!

Hmm.  In which cases would it be useful to have this information in
the logs knowing that pg_stat_activity lets us know the link between
both the leader and its workers?
--
Michael

Commits

  1. Add %P to log_line_prefix for parallel group leader

  2. Tweak behavior of pg_stat_activity.leader_pid

  3. Add leader_pid to pg_stat_activity