| 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>, Tomas Vondra <tomas(dot)vondra(at)2ndquadrant(dot)com>, pgsql-hackers(at)postgresql(dot)org |
| Subject: | Re: expose parallel leader in CSV and log_line_prefix |
| Date: | 2020-07-22 15:36:05 |
| Message-ID: | 20200722153605.GA961@alvherre.pgsql |
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| Lists: | pgsql-hackers |
On 2020-Jul-21, Michael Paquier wrote:
> On Mon, Jul 20, 2020 at 11:12:31PM -0500, Justin Pryzby wrote:
> >> + Process ID of the parallel group leader if this process is involved
> >> + in parallel query, or null. For a parallel group leader, this field
> >> + is <literal>NULL</literal>.
> >> </para></entry>
> > | For a parallel worker, this is the Process ID of its leader process. Null
> > | for processes which are not parallel workers.
How about we combine both. "Process ID of the parallel group leader, if
this process is a parallel query worker. NULL if this process is a
parallel group leader or does not participate in parallel query".
--
Álvaro Herrera https://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Remote DBA, Training & Services
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