Re: PG 14 release notes, first draft

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(at)momjian(dot)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(at)postgresql(dot)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(at)momjian(dot)us> https://momjian.us
EDB https://enterprisedb.com

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