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Conditional XPath, the first order complete XPath dialect
2004
Proceedings of the twenty-third ACM SIGMOD-SIGACT-SIGART symposium on Principles of database systems - PODS '04
XPath is the W3C-standard node addressing language for XML documents. XPath is still under development and its technical aspects are intensively studied. What is missing at present is a clear characterization of the expressive power of XPath, be it either semantical or with reference to some well established existing (logical) formalism. Core XPath (the logical core of XPath 1.0 defined by Gottlob et al.) cannot express queries with conditional paths as exemplified by "do a child step, while
doi:10.1145/1055558.1055562
dblp:conf/pods/Marx04
fatcat:2mlg33wnwndirlxugb2ueqyg44