A method for processing queries for a document of elements is provided. The document includes a plurality of subsections where each subsection includes at least a portion of elements in the document. The method comprises: receiving a query for a path of elements in the document of elements; determining...http://www.google.de/patents/US20040073541?utm_source=gb-gplus-sharePatent US20040073541 - Parent-child query indexing for XML databases
