Re: PG 14 release notes, first draft - Mailing list pgsql-hackers

From Bruce Momjian
Subject Re: PG 14 release notes, first draft
Date
Msg-id 20210511015801.GM6088@momjian.us
Whole thread Raw
In response to Re: PG 14 release notes, first draft  (David Rowley <dgrowleyml@gmail.com>)
List pgsql-hackers
On Tue, May 11, 2021 at 12:35:28PM +1200, David Rowley wrote:
> Thanks for making the updates.
> 
> On Tue, 11 May 2021 at 05:07, Bruce Momjian <bruce@momjian.us> wrote:
> >
> > On Mon, May 10, 2021 at 08:52:44PM +1200, David Rowley wrote:
> > > > Improve the performance of parallel sequential scans (Thomas Munro, David Rowley)
> > >
> > > I think it is worth mentioning "I/O" before "performance".  This
> > > change won't really help cases if all the table's pages are already in
> > > shared buffers.
> >
> > I went with:
> >
> >         Improve the performance of parallel sequential I/O scans (Thomas Munro,
> >         David Rowley)
> 
> I think I'd have gone with:
> 
> "Improve I/O performance of parallel sequential scans (Thomas Munro,
> David Rowley)"
> 
> The operation we're speeding up is called sequential scan. We don't
> have any operation that's named sequential I/O scan.

OK, new text:

    <listitem>
    <!--
    Author: David Rowley <drowley@postgresql.org>
    2020-07-26 [56788d215] Allocate consecutive blocks during parallel seqscans
    -->
    
    <para>
    Improve the I/O performance of parallel sequential scans (Thomas Munro, David Rowley)
    </para>
    
    <para>
    This was done by allocating blocks in groups to parallel workers.
    </para>
    </listitem>

-- 
  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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