diff --git a/doc/src/sgml/catalogs.sgml b/doc/src/sgml/catalogs.sgml
index 384e6eaa3b..fd6910ddbe 100644
--- a/doc/src/sgml/catalogs.sgml
+++ b/doc/src/sgml/catalogs.sgml
@@ -2816,22 +2816,24 @@ SCRAM-SHA-256$<replaceable>&lt;iteration count&gt;</replaceable>:<replaceable>&l
 
      <row>
       <entry role="catalog_table_entry"><para role="column_definition">
        <structfield>conforencoding</structfield> <type>int4</type>
       </para>
       <para>
-       Source encoding ID
+       Source encoding ID (<link linkend="pg-encoding-to-char"><function>pg_encoding_to_char()</function></link>
+       can translate this number to the encoding name)
       </para></entry>
      </row>
 
      <row>
       <entry role="catalog_table_entry"><para role="column_definition">
        <structfield>contoencoding</structfield> <type>int4</type>
       </para>
       <para>
-       Destination encoding ID
+       Destination encoding ID (<link linkend="pg-encoding-to-char"><function>pg_encoding_to_char()</function></link>
+       can translate this number to the encoding name)
       </para></entry>
      </row>
 
      <row>
       <entry role="catalog_table_entry"><para role="column_definition">
        <structfield>conproc</structfield> <type>regproc</type>
@@ -2924,13 +2926,13 @@ SCRAM-SHA-256$<replaceable>&lt;iteration count&gt;</replaceable>:<replaceable>&l
      <row>
       <entry role="catalog_table_entry"><para role="column_definition">
        <structfield>encoding</structfield> <type>int4</type>
       </para>
       <para>
        Character encoding for this database
-       (<function>pg_encoding_to_char()</function> can translate
+       (<link linkend="pg-encoding-to-char"><function>pg_encoding_to_char()</function></link> can translate
        this number to the encoding name)
       </para></entry>
      </row>
 
      <row>
       <entry role="catalog_table_entry"><para role="column_definition">
diff --git a/doc/src/sgml/func.sgml b/doc/src/sgml/func.sgml
index 78812b2dbe..42dff83e16 100644
--- a/doc/src/sgml/func.sgml
+++ b/doc/src/sgml/func.sgml
@@ -23325,12 +23325,42 @@ SELECT pg_type_is_visible('myschema.widget'::regtype);
         Returns the SQL name for a data type that is identified by its type
         OID and possibly a type modifier.  Pass NULL for the type modifier if
         no specific modifier is known.
        </para></entry>
       </row>
 
+      <row>
+       <entry id="pg-char-to-encoding" role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_char_to_encoding</primary>
+        </indexterm>
+        <function>pg_char_to_encoding</function> ( <parameter>encoding</parameter> <type>name</type> )
+        <returnvalue>integer</returnvalue>
+       </para>
+       <para>
+        Converts the supplied encoding name into an integer representing the
+        internal identifier used in some system catalog tables.
+        Returns <literal>-1</literal> if an unknown encoding name is provided.
+       </para></entry>
+      </row>
+
+      <row>
+       <entry id="pg-encoding-to-char" role="func_table_entry"><para role="func_signature">
+        <indexterm>
+         <primary>pg_encoding_to_char</primary>
+        </indexterm>
+        <function>pg_encoding_to_char</function> ( <parameter>encoding</parameter> <type>integer</type> )
+        <returnvalue>name</returnvalue>
+       </para>
+       <para>
+        Converts the integer used as the internal identifier of an encoding in some
+        system catalog tables into a human-readable string.
+        Returns an empty string if an invalid encoding number is provided.
+       </para></entry>
+      </row>
+
       <row>
        <entry role="func_table_entry"><para role="func_signature">
         <indexterm>
          <primary>pg_get_catalog_foreign_keys</primary>
         </indexterm>
         <function>pg_get_catalog_foreign_keys</function> ()