Implementing XQuery 1.0: The Galax experience

Mary Fernández, Jérôme Siméon, Byron Choi, Amélie Marian, Gargi Sur

Research output: Chapter in Book/Report/Conference proceedingConference contribution

48 Scopus citations


Galax is a light-weight, portable, open-source implementation of XQuery 1.0. Started in December 2000 as a small prototype designed to test the XQuery static type system, Galax has now become a solid implementation, aiming at full conformance with the family of XQuery 1.0 specifications. Because of its completeness and open architecture, Galax also turns out to be a very convenient platform for researchers interested in experimenting with XQuery optimization. We demonstrate the Galax system as well as its most advanced features, including support for XPath 2.0, XML Schema and static typechecking. We also present some of our first experiments with optimization. Notably, we demonstrate query rewriting capabilities in the Galax compiler, and the ability to run queries on documents up to a Gigabyte without the need for preindexing. Although early versions of Galax have been shown in industrial conferences over the last two years, this is the first time it is demonstrated in the database community.

Original languageEnglish (US)
Title of host publicationProceedings - 29th International Conference on Very Large Data Bases, VLDB 2003
EditorsPatricia G. Selinger, Michael J. Carey, Johann Christoph Freytag, Serge Abiteboul, Peter C. Lockemann, Andreas Heuer
PublisherMorgan Kaufmann
Number of pages4
ISBN (Electronic)0127224424, 9780127224428
StatePublished - 2003
Externally publishedYes
Event29th International Conference on Very Large Data Bases, VLDB 2003 - Berlin, Germany
Duration: Sep 9 2003Sep 12 2003

Publication series

NameProceedings - 29th International Conference on Very Large Data Bases, VLDB 2003


Other29th International Conference on Very Large Data Bases, VLDB 2003

All Science Journal Classification (ASJC) codes

  • Software
  • Information Systems
  • Hardware and Architecture
  • Information Systems and Management
  • Computer Science Applications
  • Computer Networks and Communications


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