[Exist-open] Full-text search on all attributes with one full-text index invocation per document?

[<kie...@ik...>]

I want to find all documents of a collection, which contains a special 
substring in any one attribute of any element. My idea was to define an 
appropriate index concatenating all attribute values of a document to 
one string and using near(node(),"Some Substring") to find the 
documents. However the following index definition get never search results:


         <fulltext default="none" attributes="false">
             <include path="//node()/@*" content="mixed"/>
         </fulltext>


Any idea?