diff --git a/reference/pgsql/functions/pg-lo-seek.xml b/reference/pgsql/functions/pg-lo-seek.xml
index fcd2637ecd..e3a08b15d7 100644
--- a/reference/pgsql/functions/pg-lo-seek.xml
+++ b/reference/pgsql/functions/pg-lo-seek.xml
@@ -92,6 +92,31 @@
    </example> 
   </para>
  </refsect1>
+
+ <refsect1 role="changelog">
+  &reftitle.changelog;
+  <para>
+   <informaltable>
+    <tgroup cols="2">
+     <thead>
+      <row>
+       <entry>&Version;</entry>
+       <entry>&Description;</entry>
+      </row>
+     </thead>
+     <tbody>
+      <row>
+       <entry>5.6.0</entry>
+       <entry>
+        Added PostgreSQL 9.3's 64bit large object support. Both client and server must
+        support PostgreSQL 9.3 and PHP must be 64bit build to use 64bit large object.
+       </entry>
+      </row>
+     </tbody>
+    </tgroup>
+   </informaltable>
+  </para>
+ </refsect1>
  
  <refsect1 role="seealso">
   &reftitle.seealso;
diff --git a/reference/pgsql/functions/pg-lo-tell.xml b/reference/pgsql/functions/pg-lo-tell.xml
index 56e09ef647..99100d6abd 100644
--- a/reference/pgsql/functions/pg-lo-tell.xml
+++ b/reference/pgsql/functions/pg-lo-tell.xml
@@ -80,6 +80,31 @@ Seek position is: 50000
   </para>
  </refsect1>
  
+ <refsect1 role="changelog">
+  &reftitle.changelog;
+  <para>
+   <informaltable>
+    <tgroup cols="2">
+     <thead>
+      <row>
+       <entry>&Version;</entry>
+       <entry>&Description;</entry>
+      </row>
+     </thead>
+     <tbody>
+      <row>
+       <entry>5.6.0</entry>
+       <entry>
+        Added PostgreSQL 9.3's 64bit large object support. Both client and server must
+        support PostgreSQL 9.3 and PHP must be 64bit build to use 64bit large object.
+       </entry>
+      </row>
+     </tbody>
+    </tgroup>
+   </informaltable>
+  </para>
+ </refsect1>
+ 
  <refsect1 role="seealso">
   &reftitle.seealso;
   <para>
diff --git a/reference/pgsql/functions/pg-lo-truncate.xml b/reference/pgsql/functions/pg-lo-truncate.xml
new file mode 100644
index 0000000000..2e274884a6
--- /dev/null
+++ b/reference/pgsql/functions/pg-lo-truncate.xml
@@ -0,0 +1,137 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- $Revision: 297028 $ -->
+<!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.2 -->
+<refentry xml:id='function.pg-lo-truncate' xmlns="http://docbook.org/ns/docbook">
+ <refnamediv>
+  <refname>pg_lo_truncate</refname>
+  <refpurpose>
+   Truncates a large object
+  </refpurpose>
+ </refnamediv>
+
+ <refsect1 role="description">
+  &reftitle.description;
+  <methodsynopsis>
+   <type>bool</type><methodname>pg_lo_truncate</methodname>
+   <methodparam><type>resource</type><parameter>large_object</parameter></methodparam>
+   <methodparam><type>int</type><parameter>size</parameter></methodparam>
+  </methodsynopsis>
+  <para>
+   <function>pg_lo_truncate</function> truncates a a large object
+   resource.
+  </para>
+  <para>
+   To use the large object interface, it is necessary to
+   enclose it within a transaction block.
+  </para>
+ </refsect1>
+
+ <refsect1 role="parameters">
+  &reftitle.parameters;
+  <para>
+   <variablelist>
+    <varlistentry>
+     <term><parameter>large_object</parameter></term>
+     <listitem>
+      <para>
+       PostgreSQL large object (LOB) resource, returned by <function>pg_lo_open</function>.
+      </para>
+     </listitem>
+    </varlistentry>
+    <varlistentry>
+     <term><parameter>size</parameter></term>
+     <listitem>
+      <para>
+       The number of bytes to truncate.
+      </para>
+     </listitem>
+    </varlistentry>
+   </variablelist>
+  </para>
+ </refsect1>
+
+ <refsect1 role="returnvalues">
+  &reftitle.returnvalues;
+  <para>
+   &return.success;
+  </para>
+ </refsect1>
+ 
+ <refsect1 role="examples">
+  &reftitle.examples;
+  <para>
+   <example>
+    <title><function>pg_lo_truncate</function> example</title>
+    <programlisting role="php">
+<![CDATA[
+<?php
+   $doc_oid = 189762345;
+   $database = pg_connect("dbname=jacarta");
+   pg_query($database, "begin");
+   $handle = pg_lo_open($database, $doc_oid, "r");
+   // Truncate to 0
+   pg_lo_truncate($handle, 0);
+   pg_query($database, "commit");
+   echo $data;
+?>
+]]>
+    </programlisting>
+   </example> 
+  </para>
+ </refsect1>
+
+ <refsect1 role="changelog">
+  &reftitle.changelog;
+  <para>
+   <informaltable>
+    <tgroup cols="2">
+     <thead>
+      <row>
+       <entry>&Version;</entry>
+       <entry>&Description;</entry>
+      </row>
+     </thead>
+     <tbody>
+      <row>
+       <entry>5.6.0</entry>
+       <entry>
+        Added truncate function. It supports PostgreSQL 9.3's 64bit large object. Both client and server must
+        support PostgreSQL 9.3 and PHP must be 64bit build to use 64bit large object.
+       </entry>
+      </row>
+     </tbody>
+    </tgroup>
+   </informaltable>
+  </para>
+ </refsect1>
+ 
+ <refsect1 role="seealso">
+  &reftitle.seealso;
+  <para>
+   <simplelist>
+    <member><function>pg_lo_tell</function></member>
+   </simplelist>
+  </para>
+ </refsect1>
+</refentry>
+
+<!-- Keep this comment at the end of the file
+Local variables:
+mode: sgml
+sgml-omittag:t
+sgml-shorttag:t
+sgml-minimize-attributes:nil
+sgml-always-quote-attributes:t
+sgml-indent-step:1
+sgml-indent-data:t
+indent-tabs-mode:nil
+sgml-parent-document:nil
+sgml-default-dtd-file:"~/.phpdoc/manual.ced"
+sgml-exposed-tags:nil
+sgml-local-catalogs:nil
+sgml-local-ecat-files:nil
+End:
+vim600: syn=xml fen fdm=syntax fdl=2 si
+vim: et tw=78 syn=sgml
+vi: ts=1 sw=1
+-->