Re: compute_query_id and pg_stat_statements - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: compute_query_id and pg_stat_statements
Date
Msg-id 20210517031234.GD24531@momjian.us
Whole thread Raw
In response to Re: compute_query_id and pg_stat_statements  (Alvaro Herrera <alvherre@alvh.no-ip.org>)
List pgsql-hackers
On Sat, May 15, 2021 at 07:01:25PM -0400, Álvaro Herrera wrote:
> On 2021-May-15, Bruce Momjian wrote:
> 
> > On Sat, May 15, 2021 at 02:21:59PM -0400, Álvaro Herrera wrote:
> 
> > > I wonder why the initial line says "query hash" instead of "query
> > > identifier".  Do we want to say "hash" everywhere?  Why didn't we name
> > > the GUC "compute_query_hash" in that case?
> > 
> > It is queryid (no underscore) in pg_stat_statements, which was a whole
> > different discussion.  ;-)
> 
> Yeah, I realize that, but I wonder if we shouldn't use the term "query
> identifier" instead of "query hash" in that paragraph.

Yes, of course, you are right --- updated text:

    <listitem>
    <!--
    Author: Bruce Momjian <bruce@momjian.us>
    2021-04-07 [4f0b0966c] Make use of in-core query id added by commit 5fd9dfa5f5
    Author: Bruce Momjian <bruce@momjian.us>
    2021-04-07 [f57a2f5e0] Add csvlog output for the new query_id value
    Author: Bruce Momjian <bruce@momjian.us>
    2021-04-20 [9660834dd] adjust query id feature to use pg_stat_activity.query_id
    Author: Bruce Momjian <bruce@momjian.us>
    2021-05-03 [f7a97b6ec] Update query_id computation
    Author: Alvaro Herrera <alvherre@alvh.no-ip.org>
    2021-05-15 [cafde58b3] Allow compute_query_id to be set to 'auto' and make it d
    -->
    
    <para>
    If server variable compute_query_id is enabled, display the query
    id in pg_stat_activity, EXPLAIN VERBOSE, csvlog, and optionally
    in log_line_prefix (Julien Rouhaud)
    </para>
    
    <para>
    A query id computed by an extension will also be displayed.
    </para>
    </listitem>

> 
> > I also added Alvaro as an author of the compute_query_id item.
> 
> I've been wondering if I should ask to stick my name in other features I
> helped get committed -- specifically the PQtrace() item and autovacuum
> for partitioned tables.  I'll go comment in the release notes thread.

Yes, done.

-- 
  Bruce Momjian  <bruce@momjian.us>        https://momjian.us
  EDB                                      https://enterprisedb.com

  If only the physical world exists, free will is an illusion.




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