Three cases for query decorrelation in XQuery

Norman May; Sven Helmer; Guido Moerkotte

doi:10.1007/978-3-540-39429-7_5

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Three cases for query decorrelation in XQuery

Conference proceeding

Peer reviewed

Three cases for query decorrelation in XQuery

Norman May, Sven Helmer and Guido Moerkotte

Database and XML Technologies: First International XML Database Symposium, XSym 2003, Berlin, Germany, September 8, 2003, Proceedings, Vol.2824, pp.70-84

Lecture Notes in Computer Science, 2824

XSym 2003 - 1st International XML Database Symposium (Berlin, 08/09/2003 - 08/09/2003)

2003

DOI: https://doi.org/10.1007/978-3-540-39429-7_5

Handle:

https://hdl.handle.net/10863/1062

Abstract

We present algebraic equivalences that allow to unnest nested algebraic expressions for order-preserving algebraic operators. We illustrate how these equivalences can be applied successfully to unnest nested queries given in the XQuery language. Measurements illustrate the performance gains possible our approach

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http://link.springer.com/chapter/10.1007/978-3-540-39429-7_5View

Details

Title: Three cases for query decorrelation in XQuery
Creators: Norman May
Sven Helmer
Guido Moerkotte
Publication Details: Database and XML Technologies: First International XML Database Symposium, XSym 2003, Berlin, Germany, September 8, 2003, Proceedings, Vol.2824, pp.70-84
ISBN: 978-3-540-20055-0
EISBN: 978-3-540-39429-7
ISSN: 0302-9743
EISSN: 1611-3349
Conference: XSym 2003 - 1st International XML Database Symposium (Berlin, 08/09/2003 - 08/09/2003)
Series / Volume: Lecture Notes in Computer Science
2824
Publisher: Springer
Berlin, Heidelberg
Identifiers: 978-3-540-20055-0
(UNIBZ)1885400
991005773279001241
Scopus ID: 2-s2.0-35248874336
Academic Unit: Faculty of Computer Science
Language: English
Resource Type: Conference proceeding
Author Names String: May N, Helmer S, Moerkotte G

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