On Fri, 2026-10-16 at 23:32 -0400, shihao zhong wrote:
> Hi Jeff,
>
> > Is that still just a release note, or does it demand something
> > more?
>
> I think it needs more.
I committed the release note for tsearch & pg_trgm, as that is clearly
needed.
> > Should that note be expanded?
>
> Yes. Stems also changed for english, german, swedish, lithuanian,
> french and norwegian.... The note may also need a cover extension
> like
> fuzzystrmatch, which changed in libc databases too.
Attached a patch to expand the stemmer note.
Regards,
Jeff Davis
From 5054bf4b47c672382879347ad122efdf5ce0e3c6 Mon Sep 17 00:00:00 2001
From: Jeff Davis <[email protected]>
Date: Wed, 28 Oct 2026 23:15:31 -0700
Subject: [PATCH v1] PG 19: expand on release notes for stemmer.
Suggested-by: shihao zhong <[email protected]>
Discussion: https://postgr.es/m/CAGRkXqRWpqmoCBffoLViAVAK2-_hYE_z1SW=ffejpidt6wp...@mail.gmail.com
---
doc/src/sgml/release-19.sgml | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/doc/src/sgml/release-19.sgml b/doc/src/sgml/release-19.sgml
index 7272f7956c6..6110b4f162c 100644
--- a/doc/src/sgml/release-19.sgml
+++ b/doc/src/sgml/release-19.sgml
@@ -2282,8 +2282,15 @@ Add <link linkend="textsearch-snowball-dictionary">full text stemmers</link> for
</para>
<para>
-The Dutch, English, and German stemmers have also been updated.
-The previous Dutch stemmer is available via <link linkend="textsearch-snowball-dictionary"><literal>dutch_porter</literal></link>.
+The Dutch stemmer now uses a different algorithm, which changes the stems of
+many words; the previous algorithm is available via <link
+linkend="textsearch-snowball-dictionary"><literal>dutch_porter</literal></link>.
+</para>
+
+<para>
+The English, French, German, Lithuanian, Norwegian, Spanish, Swedish, and
+Turkish stemmers have also been updated and produce different stems for some
+words.
</para>
</listitem>
--
2.53.0
