| From: | Alvaro Herrera <alvherre(at)2ndquadrant(dot)com> |
|---|---|
| To: | Michael Paquier <michael(at)paquier(dot)xyz> |
| Cc: | Justin Pryzby <pryzby(at)telsasoft(dot)com>, Julien Rouhaud <rjuju123(at)gmail(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: expose parallel leader in CSV and log_line_prefix |
| Date: | 2020-07-17 02:55:45 |
| Message-ID: | 20200717025545.GA30699@alvherre.pgsql |
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| Thread: | |
| Lists: | pgsql-hackers |
On 2020-Jul-17, Michael Paquier wrote:
> Please note that this choice comes from BecomeLockGroupLeader(), where
> a leader registers itself in lockGroupLeader, and remains set as such
> as long as the process is alive so we would always get a value for a
> process once it got involved in parallel query. This patch is just
Oh, ugh, I don't like that part much. If you run connections through a
connection pooler, it's going to be everywhere. Let's put it there only
if the connection *is* running a parallel query, without being too
stressed about the startup and teardown sequence.
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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