DataBase LookUp functoid issue

Hi biztalkgurus

 I have an issue with database functoid. i am using a value extracter to extract the result. But the problem is if my database lookup returns more than one value. The extracter only pulling one value. I would like to explain further using the schemas.

my source schema looks  like this
<request>
<header>
<desc>abc</desc>
</header>
<header>
<desc>def</desc>
</header>
</request>

My Database look up functoid which takes input orderno from the  source schema
 table POrders
 column   column
 orderno  desc
 125      abc
 125      def

in the lookup functoid takes orderno, connectionstring, POrders, orderno
 now i have a table extracter which extracts for column (desc) and returns to the outputschema

My output schema after execution is

<response>
<header>
<desc>abc</desc>
</header>
</response>

but my desired output is
<response>
<header>
<desc>abc</desc>
</header>
<header>
<desc>def</desc>
</header>
</response>

Thanks for the response and very much appreciated

regards

ram