From ea969fa15edec0bb9e8726860be5660b129ed993 Mon Sep 17 00:00:00 2001
From: "Renan A. Fonseca" <renanfonseca@gmail.com>
Date: Tue, 1 Apr 2025 15:53:34 +0200
Subject: [PATCH] Document SQL functions' behavior regarding custom/generic
 plan

---
 doc/src/sgml/xfunc.sgml | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/doc/src/sgml/xfunc.sgml b/doc/src/sgml/xfunc.sgml
index f3a3e4e2f8f..f8058d78fe6 100644
--- a/doc/src/sgml/xfunc.sgml
+++ b/doc/src/sgml/xfunc.sgml
@@ -249,6 +249,13 @@ CALL clean_emp();
      </para>
    </note>
 
+    <note>
+     <para>
+       Except when inlined, an SQL function is always executed with a
+       generic plan. This behavior may not be desired in some situations.
+     </para>
+    </note>
+
    <para>
     The syntax of the <command>CREATE FUNCTION</command> command requires
     the function body to be written as a string constant.  It is usually
-- 
2.47.0