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Quantifiers in XQuery
Conference proceeding   Peer reviewed

Quantifiers in XQuery

Norman May, Sven Helmer and Guido Moerkotte
Fourth International Conference on Web Information Systems Engineering, WISE 2003 : 10 - 12 December 2003, Roma, Italy: Proceedings, pp.313-316
4th International Conference on Web Information Systems Engineering (WISE 2003) (Rome, 10/12/2003 - 12/12/2003)
2003
Handle:
https://hdl.handle.net/10863/1090

Abstract

We present algebraic equivalences that allow to unnest nested algebraic expressions containing quantifiers for order-preserving algebraic operators. We illustrate how these equivalences can be applied successfully to unnest nested queries formulated in XQuery. Measurements illustrate the performance gains possible by unnesting.
url
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=1254501View

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