Date: Wed, 15 Apr 2026 15:34:17 -0400
From: Bruce Momjian <bruce@momjian.us>
To: David Rowley <dgrowleyml@gmail.com>
Cc: PostgreSQL-development <pgsql-hackers@lists.postgresql.org>
Subject: Re: First draft of PG 19 release notes
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On Wed, Apr 15, 2026 at 02:41:22PM -0400, Bruce Momjian wrote:
> On Wed, Apr 15, 2026 at 02:29:49PM +1200, David Rowley wrote:
> > On Wed, 15 Apr 2026 at 13:19, Bruce Momjian <bruce@momjian.us> wrote:
> > > I have completed the first draft of the PG 19 release notes:
> > >
> > >         https://www.postgresql.org/docs/devel/release-19.html
> > 
> > Many thanks for your efforts here.
> > 
> > "Improve performance of internal row formation (David Rowley)"
> > 
> > It's really deformation, not formation. As far as I know, nothing in
> > v19 sped up tuple formation.
> 
> Changed to:
> 
> 	Improve performance of internal row deformation (David Rowley)
> 	                                    --
> Thanks.
> 
> > I also think Nathan's work on autovacuum table prioritisation
> > (d7965d65f) is worth a mention. There were concerns there that it
> > might cause trouble for people who (for some reason) get best results
> > from the previous pg_class-ordered priority. Having something in the
> > notes about this might help direct someone towards why they're seeing
> > autovacuum behave differently after upgrading.
> 
> Yikes, so I collected commits on March 26, but when I went to add new
> commits, I used March 27 as the start date, and missed all the late
> March 26 commits.  I should have started on March 26 to get
> later-in-the-day commits!
> 
> I went back and looked at the commits I missed and the one you pointed
> out is the only relevant one, so that is good.
> 
> Applied patch attached.

Oops, patch _now_ attached.

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

  Do not let urgent matters crowd out time for investment in the future.

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commit 23ec74c8a85
Author: Bruce Momjian <bruce@momjian.us>
Date:   Wed Apr 15 14:42:57 2026 -0400

    doc PG 19 relnotes:  add missing March 16 autovacuum score item
    
    Also fix "deformed" tuples.
    
    Reported-by: David Rowley
    
    Backpatch-through: CAApHDvrsyD3QKBO=dypNkyFzYOzQEbgy+xJLwn=y+h+bLSDd-g@mail.gmail.com

diff --git a/doc/src/sgml/release-19.sgml b/doc/src/sgml/release-19.sgml
index 28ca12da3c8..bae5008a4ab 100644
--- a/doc/src/sgml/release-19.sgml
+++ b/doc/src/sgml/release-19.sgml
@@ -733,7 +733,7 @@ Author: David Rowley <drowley@postgresql.org>
 
 <listitem>
 <para>
-Improve performance of internal row formation (David Rowley)
+Improve performance of internal row deformation (David Rowley)
 <ulink url="&commit_baseurl;c456e3911">&sect;</ulink>
 </para>
 </listitem>
@@ -1216,6 +1216,23 @@ Previously the checksum status could only be set at initialization and changed o
 </para>
 </listitem>
 
+<!--
+Author: Nathan Bossart <nathan@postgresql.org>
+2026-03-27 [d7965d65f] Add rudimentary table prioritization to autovacuum.
+-->
+
+<listitem>
+<para>
+Add scoring system to control the order that tables are autovacuumed (Nathan Bossart)
+<ulink url="&commit_baseurl;d7965d65f">&sect;</ulink>
+</para>
+
+<para>
+The new server variables are autovacuum_freeze_score_weight, autovacuum_multixact_freeze_score_weight, autovacuum_vacuum_score_weight, autovacuum_vacuum_insert_score_weight, and
+autovacuum_analyze_score_weight.
+</para>
+</listitem>
+
 <!--
 Author: Daniel Gustafsson <dgustafsson@postgresql.org>
 2026-03-18 [4f433025f] ssl: Serverside SNI support for libpq

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