diff --git a/reference/pgsql/functions/pg-lo-open.xml b/reference/pgsql/functions/pg-lo-open.xml
index 8f53a87f5a..a0c7099cf2 100644
--- a/reference/pgsql/functions/pg-lo-open.xml
+++ b/reference/pgsql/functions/pg-lo-open.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.5 $ -->
+<!-- $Revision: 1.6 $ -->
 <!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.2 -->
 <refentry id="function.pg-lo-open">
  <refnamediv>
@@ -16,12 +16,8 @@
    <methodparam><type>string</type><parameter>mode</parameter></methodparam>
   </methodsynopsis>
   <para>
-   <function>pg_lo_open</function> opens a Large Object and
-   returns large object resource. The resource encapsulates
-   information about the connection. 
-   <parameter>oid</parameter> specifies a valid large object oid and
-   <parameter>mode</parameter> can be either "r", "w", or "rw". It
-   returns &false; if there is an error.
+   <function>pg_lo_open</function> opens a large object in the database
+   and returns large object resource so that it can be manipulated.
   </para>
   <warning>
    <para>
@@ -30,7 +26,7 @@
    </para>
   </warning>
   <para>
-   To use the large object (lo) interface, it is necessary to
+   To use the large object interface, it is necessary to
    enclose it within a transaction block.
   </para>
   <note>
@@ -39,7 +35,74 @@
    </para>
   </note>
  </refsect1>
+ 
+ <refsect1 role="parameters">
+  &reftitle.parameters;
+  <para>
+   <variablelist>
+    <varlistentry>
+     <term><parameter>connection</parameter></term>
+     <listitem>
+      <para>
+       PostgreSQL database connection resource.  When 
+       <parameter>connection</parameter> is not present, the default connection 
+       is used. The default connection is the last connection made by 
+       <function>pg_connect</function> or <function>pg_pconnect</function>.
+      </para>
+     </listitem>
+    </varlistentry>
+    <varlistentry>
+     <term><parameter>oid</parameter></term>
+     <listitem>
+      <para>
+       The <varname>OID</varname> of the large object in the database.
+      </para>
+     </listitem>
+    </varlistentry>
+    <varlistentry>
+     <term><parameter>mode</parameter></term>
+     <listitem>
+      <para>
+       Can be either "r" for read-only, "w" for write only or "rw" for read and 
+       write.
+      </para>
+     </listitem>
+    </varlistentry>
+   </variablelist>
+  </para>
+ </refsect1>
 
+ <refsect1 role="returnvalues">
+  &reftitle.returnvalues;
+  <para>
+   A large object resource or &false; on error.
+  </para>
+ </refsect1>
+ 
+ <refsect1 role="examples">
+  &reftitle.examples;
+  <para>
+   <example>
+    <title><function>pg_lo_open</function> example</title>
+    <programlisting role="php">
+<![CDATA[
+<?php
+   $database = pg_connect("dbname=jacarta");
+   pg_query($database, "begin");
+   $oid = pg_lo_create($database);
+   echo "$oid\n";
+   $handle = pg_lo_open($database, $oid, "w");
+   echo "$handle\n";
+   pg_lo_write($handle, "large object data");
+   pg_lo_close($handle);
+   pg_query($database, "commit");
+?>
+]]>
+    </programlisting>
+   </example> 
+  </para>
+ </refsect1>
+ 
  <refsect1 role="seealso">
   &reftitle.seealso;
   <para>
diff --git a/reference/pgsql/functions/pg-lo-read-all.xml b/reference/pgsql/functions/pg-lo-read-all.xml
index 11af539270..3f214612b9 100644
--- a/reference/pgsql/functions/pg-lo-read-all.xml
+++ b/reference/pgsql/functions/pg-lo-read-all.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.5 $ -->
+<!-- $Revision: 1.6 $ -->
 <!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.2 -->
 <refentry id="function.pg-lo-read-all">
  <refnamediv>
@@ -19,11 +19,10 @@
    <function>pg_lo_read_all</function> reads a large object and passes
    it straight through to the browser after sending all pending
    headers. Mainly intended for sending binary data like images or
-   sound. It returns number of bytes read. It returns &false;, if an
-   error occurred.
+   sound.
   </para>
   <para>
-   To use the large object (lo) interface, it is necessary to
+   To use the large object interface, it is necessary to
    enclose it within a transaction block.
   </para>
   <note>
@@ -33,6 +32,52 @@
   </note>
  </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>
+
+   </variablelist>
+  </para>
+ </refsect1>
+
+ <refsect1 role="returnvalues">
+  &reftitle.returnvalues;
+  <para>
+   Number of bytes read or &false; on error.
+  </para>
+ </refsect1>
+ 
+ <refsect1 role="examples">
+  &reftitle.examples;
+  <para>
+   <example>
+    <title><function>pg_lo_read_all</function> example</title>
+    <programlisting role="php">
+<![CDATA[
+<?php
+   header('Content-type: image/jpeg');
+   $image_oid = 189762345;
+   $database = pg_connect("dbname=jacarta");
+   pg_query($database, "begin");
+   $handle = pg_lo_open($database, $image_oid, "r");
+   pg_lo_read_all($handle);
+   pg_query($database, "commit");
+?>
+]]>
+    </programlisting>
+   </example> 
+  </para>
+ </refsect1>
+ 
  <refsect1 role="seealso">
   &reftitle.seealso;
   <para>
diff --git a/reference/pgsql/functions/pg-lo-read.xml b/reference/pgsql/functions/pg-lo-read.xml
index a3e2030c32..61c83fefc1 100644
--- a/reference/pgsql/functions/pg-lo-read.xml
+++ b/reference/pgsql/functions/pg-lo-read.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.5 $ -->
+<!-- $Revision: 1.6 $ -->
 <!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.74 -->
 <refentry id="function.pg-lo-read">
  <refnamediv>
@@ -16,14 +16,11 @@
   </methodsynopsis>
   <para>
    <function>pg_lo_read</function> reads at most
-   <parameter>len</parameter> (defaults to 8192) bytes from a large object and
-   returns it as a string.  <parameter>large_object</parameter> specifies a
-   valid large object resource and<parameter>len</parameter>
-   specifies the maximum allowable size of the large object
-   segment. It returns &false; if there is an error.
+   <parameter>len</parameter> bytes from a large object and
+   returns it as a <type>string</type>.
   </para>
   <para>
-   To use the large object (lo) interface, it is necessary to
+   To use the large object interface, it is necessary to
    enclose it within a transaction block.
   </para>
   <note>
@@ -33,6 +30,60 @@
   </note>
  </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>len</parameter></term>
+     <listitem>
+      <para>
+       An optional maximum number of bytes to return.  Defaults to 8192.
+      </para>
+     </listitem>
+    </varlistentry>
+   </variablelist>
+  </para>
+ </refsect1>
+
+ <refsect1 role="returnvalues">
+  &reftitle.returnvalues;
+  <para>
+   A <type>string</type> containing <parameter>len</parameter> bytes from the
+   large object, or &false; on error.
+  </para>
+ </refsect1>
+ 
+ <refsect1 role="examples">
+  &reftitle.examples;
+  <para>
+   <example>
+    <title><function>pg_lo_read</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");
+   $data = pg_lo_read($handle, 50000);
+   pg_query($database, "commit");
+   echo $data;
+?>
+]]>
+    </programlisting>
+   </example> 
+  </para>
+ </refsect1>
+ 
  <refsect1 role="seealso">
   &reftitle.seealso;
   <para>
diff --git a/reference/pgsql/functions/pg-lo-seek.xml b/reference/pgsql/functions/pg-lo-seek.xml
index d684c2b14d..350df5e428 100644
--- a/reference/pgsql/functions/pg-lo-seek.xml
+++ b/reference/pgsql/functions/pg-lo-seek.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.5 $ -->
+<!-- $Revision: 1.6 $ -->
 <!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.2 -->
 <refentry id='function.pg-lo-seek'>
  <refnamediv>
   <refname>pg_lo_seek</refname>
   <refpurpose>
-   Seeks position of large object
+   Seeks position within a large object
   </refpurpose>
  </refnamediv>
 
@@ -18,12 +18,81 @@
    <methodparam choice="opt"><type>int</type><parameter>whence</parameter></methodparam>
   </methodsynopsis>
   <para>
-   <function>pg_lo_seek</function> seeks position of large object
-   resource. <parameter>whence</parameter> is <constant>PGSQL_SEEK_SET</constant>,
-   <constant>PGSQL_SEEK_CUR</constant> or <constant>PGSQL_SEEK_END</constant>.
+   <function>pg_lo_seek</function> seeks a position within 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>offset</parameter></term>
+     <listitem>
+      <para>
+       The number of bytes to seek.
+      </para>
+     </listitem>
+    </varlistentry>
+    <varlistentry>
+     <term><parameter>whence</parameter></term>
+     <listitem>
+      <para>
+       One of the constants <constant>PGSQL_SEEK_SET</constant> (seek from object start), 
+       <constant>PGSQL_SEEK_CUR</constant> (seek from current position)
+       or <constant>PGSQL_SEEK_END</constant> (seek from object end) .
+      </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_seek</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, $doc_oid, "r");
+   // Skip first 10000 bytes
+   pg_lo_seek($handle, 50000, PGSQL_SEEK_SET);
+   // Read the next 50000 bytes
+   $data = pg_lo_read($handle, 10000);
+   pg_query($database, "commit");
+   echo $data;
+?>
+]]>
+    </programlisting>
+   </example> 
+  </para>
+ </refsect1>
+ 
  <refsect1 role="seealso">
   &reftitle.seealso;
   <para>
diff --git a/reference/pgsql/functions/pg-lo-tell.xml b/reference/pgsql/functions/pg-lo-tell.xml
index f41298261f..7f8626cd84 100644
--- a/reference/pgsql/functions/pg-lo-tell.xml
+++ b/reference/pgsql/functions/pg-lo-tell.xml
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.4 $ -->
+<!-- $Revision: 1.5 $ -->
 <!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.74 -->
 <refentry id='function.pg-lo-tell'>
  <refnamediv>
   <refname>pg_lo_tell</refname>
   <refpurpose>
-   Returns current position of large object
+   Returns current seek position a of large object
   </refpurpose>
  </refnamediv>
 
@@ -16,11 +16,70 @@
    <methodparam><type>resource</type><parameter>large_object</parameter></methodparam>
   </methodsynopsis>
   <para>
-   <function>pg_lo_tell</function> returns current position (offset
-   from the beginning of large object).
+   <function>pg_lo_tell</function> returns the current position (offset
+   from the beginning) of a large object.
+  </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>
+   </variablelist>
+  </para>
+ </refsect1>
+
+ <refsect1 role="returnvalues">
+  &reftitle.returnvalues;
+  <para>
+   The current seek offset (in number of bytes) from the beginning of the large
+   object.  If there is an error, the return value is negative.
+  </para>
+ </refsect1>
+ 
+ <refsect1 role="examples">
+  &reftitle.examples;
+  <para>
+   <example>
+    <title><function>pg_lo_tell</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, $doc_oid, "r");
+   // Skip first 10000 bytes
+   pg_lo_seek($handle, 50000, PGSQL_SEEK_SET);
+   // See how far we've skipped
+   $offset = pg_lo_tell($handle);
+   echo "Seek position is: $offset";
+   pg_query($database, "commit");
+?>
+]]>
+    </programlisting>
+    &example.outputs;
+    <screen>
+<![CDATA[
+Seek position is: 50000
+]]>
+    </screen>
+   </example> 
+  </para>
+ </refsect1>
+ 
  <refsect1 role="seealso">
   &reftitle.seealso;
   <para>
diff --git a/reference/pgsql/functions/pg-lo-unlink.xml b/reference/pgsql/functions/pg-lo-unlink.xml
index 2dba51bd33..c9fca84f2d 100644
--- a/reference/pgsql/functions/pg-lo-unlink.xml
+++ b/reference/pgsql/functions/pg-lo-unlink.xml
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.5 $ -->
+<!-- $Revision: 1.6 $ -->
 <!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.2 -->
 <refentry id="function.pg-lo-unlink">
  <refnamediv>
@@ -19,16 +19,71 @@
    <parameter>oid</parameter>. &return.success;
   </para>
   <para>
-   To use the large object (lo) interface, it is necessary to
+   To use the large object interface, it is necessary to
    enclose it within a transaction block.
   </para>
   <note>
    <para>
-    This function used to be called <literal>pg_lo_unlink()</literal>.
+    This function used to be called <literal>pg_lounlink()</literal>.
    </para>
   </note>
  </refsect1>
 
+ <refsect1 role="parameters">
+  &reftitle.parameters;
+  <para>
+   <variablelist>
+    <varlistentry>
+     <term><parameter>connection</parameter></term>
+     <listitem>
+      <para>
+       PostgreSQL database connection resource.  When 
+       <parameter>connection</parameter> is not present, the default connection 
+       is used. The default connection is the last connection made by 
+       <function>pg_connect</function> or <function>pg_pconnect</function>.
+      </para>
+     </listitem>
+    </varlistentry>
+    <varlistentry>
+     <term><parameter>oid</parameter></term>
+     <listitem>
+      <para>
+       The <varname>OID</varname> of the large object in the database.
+      </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_unlink</function> example</title>
+    <programlisting role="php">
+<![CDATA[
+<?php
+   // OID of the large object to delete
+   $doc_oid = 189762345;
+   $database = pg_connect("dbname=jacarta");
+   pg_query($database, "begin");
+   pg_lo_unlink($database, $doc_oid);
+   pg_query($database, "commit");
+?>
+]]>
+    </programlisting>
+   </example> 
+  </para>
+ </refsect1>
+ 
  <refsect1 role="seealso">
   &reftitle.seealso;
   <para>
diff --git a/reference/pgsql/functions/pg-lo-write.xml b/reference/pgsql/functions/pg-lo-write.xml
index 32f86f6ed3..08fb18ac81 100644
--- a/reference/pgsql/functions/pg-lo-write.xml
+++ b/reference/pgsql/functions/pg-lo-write.xml
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="iso-8859-1"?>
-<!-- $Revision: 1.6 $ -->
+<!-- $Revision: 1.7 $ -->
 <!-- splitted from ./en/functions/pgsql.xml, last change in rev 1.2 -->
 <refentry id="function.pg-lo-write">
  <refnamediv>
   <refname>pg_lo_write</refname>
-  <refpurpose>Write a large object</refpurpose>
+  <refpurpose>Write to a large object</refpurpose>
  </refnamediv>
 
  <refsect1 role="description">
@@ -16,14 +16,11 @@
    <methodparam choice="opt"><type>int</type><parameter>len</parameter></methodparam>
   </methodsynopsis>
   <para>
-   <function>pg_lo_write</function> writes at most to a large object
-   from a variable <parameter>data</parameter> and returns the number
-   of bytes actually written, or &false; in the case of an error.
-   <parameter>large_object</parameter> is a large object resource
-   from <function>pg_lo_open</function>. 
+   <function>pg_lo_write</function> writes data into a large object
+   at the current seek position.
   </para>
   <para>
-   To use the large object (lo) interface, it is necessary to
+   To use the large object interface, it is necessary to
    enclose it within a transaction block.
   </para>
   <note>
@@ -33,6 +30,71 @@
   </note>
  </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>data</parameter></term>
+     <listitem>
+      <para>
+       The data to be written to the large object.  If <parameter>len</parameter> is
+       specified and is less than the length of <parameter>data</parameter>, only
+       <parameter>len</parameter> bytes will be written.
+      </para>
+     </listitem>
+    </varlistentry>
+    <varlistentry>
+     <term><parameter>len</parameter></term>
+     <listitem>
+      <para>
+       An optional maximum number of bytes to write.  Must be greater than zero
+       and no greater than the length of <parameter>data</parameter>.  Defaults to
+       the length of <parameter>data</parameter>.
+      </para>
+     </listitem>
+    </varlistentry>
+   </variablelist>
+  </para>
+ </refsect1>
+
+ <refsect1 role="returnvalues">
+  &reftitle.returnvalues;
+  <para>
+   The number of bytes written to the large object, or &false; on error.
+  </para>
+ </refsect1>
+ 
+ <refsect1 role="examples">
+  &reftitle.examples;
+  <para>
+   <example>
+    <title><function>pg_lo_write</function> example</title>
+    <programlisting role="php">
+<![CDATA[
+<?php
+   $doc_oid = 189762345;
+   $data = "This will overwrite the start of the large object.";
+   $database = pg_connect("dbname=jacarta");
+   pg_query($database, "begin");
+   $handle = pg_lo_open($database, $doc_oid, "w");
+   $data = pg_lo_write($handle, $data);
+   pg_query($database, "commit");
+?>
+]]>
+    </programlisting>
+   </example> 
+  </para>
+ </refsect1>
+ 
  <refsect1 role="seealso">
   &reftitle.seealso;
   <para>