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XQuery Full-Text

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Encyclopedia of Database Systems

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Synonyms

XQuery 1.0 and XPath 2.0 Full-Text; XQFT

Definition

XQuery Full-Text [11] is a full-text search extension to the XQuery 1.0 [9] and XPath 2.0 [8] XML query languages. XQuery 1.0, XPath 2.0, and XQuery Full-Text are query languages developed by the World Wide Web Consortium (W3C).

Historical Background

The XQuery [9] and XPath languages [8] have evolved as powerful languages for querying XML documents. While these languages provide sophisticated structured query capabilities, they only provide rudimentary capabilities for querying the text (unstructured) parts of XML documents. In particular, the main full-text search predicate in these languages is the fn:contains($context, $keywords) function ( http://www.w3.org/TR/xpath-functions/#func-contains ), which intuitively returns the Boolean value true if the items in the $context parameter contain the strings in the $keywords parameter. The fn:containsfunction is sufficient for simple sub-string matching but does not provide...

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Recommended Reading

  1. Al-Khalifa S., Yu C., and Jagadish H. Querying structured text in an XML database. In Proc. ACM SIGMOD Int. Conf. on Management of Data, 2003, pp. 4–15.

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  2. Amer-Yahia S., Botev C., Doerre J., and Shanmugasundaram J. XQuery full-text extensions explained. IBM Syst. J., 45(2):335–351, 2006.

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  3. Amer-Yahia S., Botev C., and Shanmugasundaram J. TE XQuery: A full-text search extension to XQuery. In Proc. 12th Int. World Wide Web Conference, 2004, pp. 583–594.

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  4. Carmel D., Maarek Y., Mandelbrod M., Mass Y., and Soffer A. Searching XML documents via XML fragments. In Proc. 26th Annual Int. ACM SIGIR Conf. on Research and Development in Information Retrieval, 2003, pp. 151–158.

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  5. Chinenyanga T. and Kushmerick N. Expressive and efficient ranked querying of XML data. In Proc. 4th Int. Workshop on the World Wide Web and Databases, 2001, pp. 1–6.

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  6. Fuhr N. and Grossjohann K. XIRQL: An extension of XQL for information retrieval. In Proc. ACM SIGIR Workshop on XML and Information Retrieval, 2000, pp. 172–180.

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  7. Theobald A. and Weikum G. The index-based XXL search engine for querying XML data with relevance ranking. In Advances in Database Technology, Proc. 8th Int. Conf. on Extending Database Technology, 2002, pp. 477–495.

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  8. XML Path Language (XPath) 2.0. W3C Recommendation. Available at: http://www.w3.org/TR/xpath20/

  9. XQuery 1.0: An XML Query Language. W3C Recommendation. Available at: http://www.w3.org/TR/xquery/

  10. XQuery 1.0 and XPath 2.0 Data Model (XDM). W3C Recommendation. Available at: http://www.w3.org/TR/xpath-datamodel/

  11. XQuery 1.0 and XPath 2.0 Full-Text 1.0. W3C Working Draft. Available at: http://www.w3.org/TR/xpath-full-text-10/

  12. XQuery 1.0 and XPath 2.0 Full-Text 1.0 Requirements. W3C Working Draft. Available at: http://www.w3.org/TR/xpath-full-text-10-requirements/

  13. XQuery 1.0 and XPath 2.0 Full-Text 1.0 Use Cases. W3C Working Draft. Available at: http://www.w3.org/TR/xpath-full-text-10-use-cases/

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Author information

Authors and Affiliations

  1. Yahoo Research!, Cornell University, Ithaca, NY, USA

    Chavdar Botev

  2. Yahoo Research!, Santa Clara, USA

    Jayavel Shanmugasundaram

Authors
  1. Chavdar Botev
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  2. Jayavel Shanmugasundaram
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Editor information

Editors and Affiliations

  1. College of Computing, Georgia Institute of Technology, 266 Ferst Drive, 30332-0765, Atlanta, GA, USA

    LING LIU (Professor) (Professor)

  2. Database Research Group David R. Cheriton School of Computer Science, University of Waterloo, 200 University Avenue West, N2L 3G1, Waterloo, ON, Canada

    M. TAMER ÖZSU (Professor and Director, University Research Chair) (Professor and Director, University Research Chair)

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© 2009 Springer Science+Business Media, LLC

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Botev, C., Shanmugasundaram, J. (2009). XQuery Full-Text. In: LIU, L., ÖZSU, M.T. (eds) Encyclopedia of Database Systems. Springer, Boston, MA. https://doi.org/10.1007/978-0-387-39940-9_775

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