From 0e48eda155f5e80b28c06e2a27c7efb884a6ccee Mon Sep 17 00:00:00 2001
From: Dharin Shah <8616130+Dharin-shah@users.noreply.github.com>
Date: Sat, 27 Dec 2025 17:10:38 +0100
Subject: [PATCH] docs: Fix incorrect tsvector lexeme limit in textsearch.sgml

The documentation incorrectly stated that the number of lexemes must be
less than 2^64. The actual constraint is the 1 MB storage limit for the
total tsvector data. This clarifies that the limit applies to distinct
lexemes in a single tsvector value.
---
 doc/src/sgml/textsearch.sgml | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/doc/src/sgml/textsearch.sgml b/doc/src/sgml/textsearch.sgml
index d20484cb232..762f7024664 100644
--- a/doc/src/sgml/textsearch.sgml
+++ b/doc/src/sgml/textsearch.sgml
@@ -3998,9 +3998,8 @@ Parser: "pg_catalog.default"
      less than 1 megabyte</para>
     </listitem>
     <listitem>
-     <!-- TODO: number of lexemes in what?  This is unclear -->
-     <para>The number of lexemes must be less than
-     2<superscript>64</superscript></para>
+     <para>The number of distinct lexemes in a single <type>tsvector</type>
+     value is constrained by the 1 megabyte total storage limit (see above)</para>
     </listitem>
     <listitem>
      <para>Position values in <type>tsvector</type> must be greater than 0 and
-- 
2.39.3 (Apple Git-146)