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[XQuery Talk Mailing List Archive Home] [By Date] [By Thread] [By Subject] [By Author] [Recent Entries] [Reply To This Message] Using Union/Intersect to Combine Two User-Defined Function ResultsWei, Alice J. ajwei at indiana.eduTue Mar 25 17:19:32 PST 2008
 _______________________________________ From: Jonathan Robie [http://x-query.com/mailman/listinfo/talk] Sent: Tuesday, March 25, 2008 4:40 PM To: Wei, Alice J. Cc: http://x-query.com/mailman/listinfo/talk Subject: Re: Using Union/Intersect to Combine Two User-Defined Function Results Wei, Alice J. wrote: > To answer your question, each of my local:searchresult functions as something like local:searchresult((collection("my")//ad/p[contains(upper-case(.),$search)]) > is a self efficient XML document with several nodes within it. Each of the output is something like: > > <ad> > <head type="main"> > <emph rend="red">FREE</emph> > </head> > <p>Thousands of users actual decals for a 2 deuce coupe! You'll receive free > over 100 different. use on your bike, model car, van, plane, or on glass > painted surfaces, metal, plastic, etc. </p> </ad> > Does local:searchresult() create new nodes? Each of these nodes will have a new ideintity. > What I am trying to do here is to combine both of the result sets into one. > Therefore, if a user intends to see the output of a search term and another term, he would only see the combined result. > Would you say this is possible? > You can certainly do something like this: let $a := collection("my")//ad/p[contains(upper-case(.),$search, $b := collection("your")//ad/p[contains(upper-case(.),$search, $c := collection("my")//ad/p[contains(upper-case(.),$search2, $d := collection("your")//ad/p[contains(upper-case(.),$search2 return local:searchresult( $a intersect $b intersect $c intersect $c ) By separating search from construction, you can rely on the identity of the original nodes. Hope this helps! This last one really did the trick. Thanks! Alice 
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