Index: doc/src/sgml/ref/grant.sgml
===================================================================
RCS file: /projects/cvsroot/pgsql/doc/src/sgml/ref/grant.sgml,v
retrieving revision 1.68
diff -u -r1.68 grant.sgml
--- doc/src/sgml/ref/grant.sgml	5 May 2008 01:21:03 -0000	1.68
+++ doc/src/sgml/ref/grant.sgml	27 May 2008 17:21:31 -0000
@@ -461,6 +461,14 @@
     access privileges display.  A <literal>*</> will appear only when
     grant options have been explicitly granted to someone.
    </para>
+
+   <para>
+    It must also be noted that <term>INSERT</term>, <term>UPDATE</term>
+    and <term>DELETE</term> priviliges require <term>SELECT</term>
+    privilege to be able to scan related table to locate about to be
+    updated rows on the table. Usage of these permissions without an
+    appropriate <term>SELECT</term> privilege will raise a permission error.
+   </para>
  </refsect1>
 
  <refsect1 id="sql-grant-examples">