Correction on my previous mail, I obviously mean &quot;make an intersection&quot; not<div>a union...<br><br><div><span class="gmail_quote">On 10/27/07, <b class="gmail_sendername">Jesper Petersen</b> &lt;<a href="mailto:instantfoo@gmail.com">
instantfoo@gmail.com</a>&gt; wrote:</span><blockquote class="gmail_quote" style="margin:0;margin-left:0.8ex;border-left:1px #ccc solid;padding-left:1ex"><div>&nbsp;I mean, I could do a search on the big catalog and then make a union with the
</div><div>network&#39;s extent:</div></blockquote></div></div>