From 84c4e10e130f411a89a2f9fd9184075ef02b0eaf Mon Sep 17 00:00:00 2001
From: Fujii Masao <fujii@postgresql.org>
Date: Wed, 25 Jun 2025 08:59:25 +0900
Subject: [PATCH] doc: Add secondary index entries for vacuum-related
 parameters.

For parameters that exist as both configuration and storage options,
the documentation typically includes secondary index entries to
help users distinguish and locate the relevant references easily.

However, such index entries were missing for vacuum_truncate and
vacuum_max_eager_freeze_failure_rate, both introduced in v18.

This commit adds appropriate secondary index terms for these parameters
to ensure consistency with other parameters and improve usability of
the documentation index.

Author: Fujii Masao <masao.fujii@gmail.com>
Discussion: https://postgr.es/m/e95c899a-2aeb-45b7-8fd3-7a27dcdb475b@oss.nttdata.com
---
 doc/src/sgml/config.sgml           | 6 ++++--
 doc/src/sgml/ref/create_table.sgml | 3 ++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index b265cc89c9d..0ac519706a4 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -9340,7 +9340,8 @@ COPY postgres_log FROM '/full/path/to/logfile.csv' WITH csv;
       <varlistentry id="guc-vacuum-truncate" xreflabel="vacuum_truncate">
        <term><varname>vacuum_truncate</varname> (<type>boolean</type>)
        <indexterm>
-        <primary><varname>vacuum_truncate</varname> configuration parameter</primary>
+        <primary><varname>vacuum_truncate</varname></primary>
+        <secondary>configuration parameter</secondary>
        </indexterm>
        </term>
        <listitem>
@@ -9544,7 +9545,8 @@ COPY postgres_log FROM '/full/path/to/logfile.csv' WITH csv;
      <varlistentry id="guc-vacuum-max-eager-freeze-failure-rate" xreflabel="vacuum_max_eager_freeze_failure_rate">
       <term><varname>vacuum_max_eager_freeze_failure_rate</varname> (<type>floating point</type>)
       <indexterm>
-       <primary><varname>vacuum_max_eager_freeze_failure_rate</varname> configuration parameter</primary>
+       <primary><varname>vacuum_max_eager_freeze_failure_rate</varname></primary>
+       <secondary>configuration parameter</secondary>
       </indexterm>
       </term>
       <listitem>
diff --git a/doc/src/sgml/ref/create_table.sgml b/doc/src/sgml/ref/create_table.sgml
index a5816918182..9d92e0a3551 100644
--- a/doc/src/sgml/ref/create_table.sgml
+++ b/doc/src/sgml/ref/create_table.sgml
@@ -1694,7 +1694,8 @@ WITH ( MODULUS <replaceable class="parameter">numeric_literal</replaceable>, REM
    <varlistentry id="reloption-vacuum-truncate" xreflabel="vacuum_truncate">
     <term><literal>vacuum_truncate</literal>, <literal>toast.vacuum_truncate</literal> (<type>boolean</type>)
     <indexterm>
-     <primary><varname>vacuum_truncate</varname> storage parameter</primary>
+     <primary><varname>vacuum_truncate</varname></primary>
+     <secondary>storage parameter</secondary>
     </indexterm>
     </term>
     <listitem>