id="protocol-message-formats-PasswordMessage">
    <term>PasswordMessage (F)</term>
    <listitem>
     <variablelist>
      <varlistentry>
       <term>Byte1('p')</term>
       <listitem>
        <para>
         Identifies the message as a password response. Note that
         this is also used for GSSAPI, SSPI and SASL response messages.
         The exact message type can be deduced from the context.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term>Int32</term>
       <listitem>
        <para>
         Length of message contents in bytes, including self.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term>String</term>
       <listitem>
        <para>
         The password (encrypted, if requested).
        </para>
       </listitem>
      </varlistentry>
     </variablelist>
    </listitem>
   </varlistentry>

   <varlistentry id="protocol-message-formats-PortalSuspended">
    <term>PortalSuspended (B)</term>
    <listitem>
     <variablelist>
      <varlistentry>
       <term>Byte1('s')</term>
       <listitem>
        <para>
         Identifies the message as a portal-suspended indicator.
         Note this only appears if an Execute message's row-count limit
         was reached.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term>Int32(4)</term>
       <listitem>
        <para>
         Length of message contents in bytes, including self.
        </para>
       </listitem>
      </varlistentry>
     </variablelist>
    </listitem>
   </varlistentry>

   <varlistentry id="protocol-message-formats-Query">
    <term>Query (F)</term>
    <listitem>
     <variablelist>
      <varlistentry>
       <term>Byte1('Q')</term>
       <listitem>
        <para>
         Identifies the message as a simple query.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term>Int32</term>
       <listitem>
        <para>
         Length of message contents in bytes, including self.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term>String</term>
       <listitem>
        <para>
         The query string itself.
        </para>
       </listitem>
      </varlistentry>
     </variablelist>
    </listitem>
   </varlistentry>

   <varlistentry id="protocol-message-formats-ReadyForQuery">
    <term>ReadyForQuery (B)</term>
    <listitem>
     <variablelist>
      <varlistentry>
       <term>Byte1('Z')</term>
       <listitem>
        <para>
         Identifies the message type.  ReadyForQuery is sent
         whenever the backend is ready for a new query cycle.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term>Int32(5)</term>
       <listitem>
        <para>
         Length of message contents in bytes, including self.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term>Byte1</term>
       <listitem>
        <para>
         Current backend transaction status indicator.
         Possible values are '<literal>I</literal>' if idle (not in
         a transaction block); '<literal>T</literal>' if in a transaction
         block; or '<literal>E</literal>' if in a failed transaction
         block (queries will be rejected until block is ended).
        </para>
       </listitem>
      </varlistentry>
     </variablelist>
    </listitem>
   </varlistentry>

   <varlistentry id="protocol-message-formats-RowDescription">
    <term>RowDescription (B)</term>
    <listitem>
     <variablelist>
      <varlistentry>
       <term>Byte1('T')</term>
       <listitem>
        <para>
         Identifies the message as a row description.
        </para>
       </listitem>
      </varlistentry>

      <varlistentry>
       <term>Int32</term>
       <listitem>
        <para>
         Length of message contents in bytes, including self.
        </para>
       </listitem>
      </varlistentry>