Abstract
XPath expressions play a central role in querying for XML fragments. We present a containment test of two XPath queries which determines whether a new XPath query XP1 can reuse a previous query result XP2. The key idea is to transform XP1 into a graph which is used to search for sequences of elements which are used in the XPath query XP2.
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Böttcher, S., Steinmetz, R. (2003). A DTD Graph Based XPath Query Subsumption Test. In: Bellahsène, Z., Chaudhri, A.B., Rahm, E., Rys, M., Unland, R. (eds) Database and XML Technologies. XSym 2003. Lecture Notes in Computer Science, vol 2824. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-39429-7_6
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DOI: https://doi.org/10.1007/978-3-540-39429-7_6
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