Extending XQuery with Window Functions. Botan, I.; Kossmann, D.; Fischer, P. M.; Kraska, T.; Florescu, D.; and Tamosevicius, R. In pages 75-86.
abstract   bibtex   
This paper presents two extensions for XQuery. The first extension allows the definition and processing of different kinds of windows over an input sequence; i.e., tumbling, sliding, and landmark windows. The second extension extends the XQuery data model (XDM) to support infinite sequences. This extension makes it possible to use XQuery as a language for continuous queries. Both extensions have been integrated into a Java-based open source XQuery engine. This paper gives details of this implementation and presents the results of running the Linear Road benchmark on the extended XQuery engine.
@inproceedings{ bot07,
  crossref = {vldb07},
  author = {Irina Botan and Donald Kossmann and Peter M. Fischer and Tim Kraska and Dana Florescu and Rokas Tamosevicius},
  title = {Extending XQuery with Window Functions},
  pages = {75-86},
  uri = {http://www.vldb.org/conf/2007/papers/research/p75-botan.pdf},
  abstract = {This paper presents two extensions for XQuery. The first extension allows the definition and processing of different kinds of windows over an input sequence; i.e., tumbling, sliding, and landmark windows. The second extension extends the XQuery data model (XDM) to support infinite sequences. This extension makes it possible to use XQuery as a language for continuous queries. Both extensions have been integrated into a Java-based open source XQuery engine. This paper gives details of this implementation and presents the results of running the Linear Road benchmark on the extended XQuery engine.}
}
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