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doc PG 18 relnotes: add attribution and rewrite text search item

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Discussion: https://postgr.es/m/aLMo7lJKg8bWUs3y@momjian.us

Backpatch-through: 18
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Bruce Momjian
2025-08-30 17:52:06 -04:00
parent e1dacaac3b
commit a252ed7fba
1 changed files with 14 additions and 10 deletions
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doc/src/sgml/release-18.sgml
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@@ -273,16 +273,20 @@ Author: Peter Eisentraut <peter@eisentraut.org>
<listitem> <listitem>
<para> <para>
The locale implementation underlying full-text search was improved. It Change <link linkend="textsearch">full text search</link> to use the
now observes the locale provider configured for the database for case default collation provider of the cluster to read configuration files
conversions. It was previously hardcoded to use libc. In database and dictionaries, rather than always using libc (Peter Eisentraut)
clusters that use a locale provider other than libc (that is, ICU or </para>
builtin) and where the locale configured through that locale provider
behaves differently from the LC_CTYPE setting configured for the database, <para>
this could cause changes in behavior of some functions related to Clusters that default to non-libc collation providers (e.g., ICU,
full-text search as well as the pg_trgm extension. When upgrading such builtin) that behave differently than libc for characters processed
database clusters using pg_upgrade, it is recommended to reindex all by LC_CTYPE could observe changes in behavior of some full-text
indexes related to full-text search and pg_trgm after the upgrade. search functions, as well as the <xref linkend="pgtrgm"/> extension.
When upgrading such clusters using <xref linkend="pgupgrade"/>, it
is recommended to reindex all indexes related to full-text search
and <application>pg_trgm</application> after the upgrade.
(Peter Eisentraut)
<ulink url="&commit_baseurl;fb1a18810f0">&sect;</ulink> <ulink url="&commit_baseurl;fb1a18810f0">&sect;</ulink>
</para> </para>
</listitem> </listitem>