Maintaining XPath views in loosely coupled systems

Arsany Sawires, Junichi Tatemura, Oliver Po, Divyakant Agrawal, Amr El Abbadi, K. Selçuk Candan

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

15 Scopus citations

Abstract

We address the problem of maintaining materialized XPath views in environments where the view maintenance system and the base data system are loosely-coupled. We show that the recently proposed XPath view maintenance techniques require tight coupling, and thus are not practical for loosely-coupled systems. Our solution adapts to loose-coupling by using information that is fully available through standard XPath interfaces. This information consists of the view definition, the update statement, and the current materialized view result. Under this model, incremental maintenance is not always possible; thus, maintaining the consistency of the views requires frequent view recomputations. Our goal is to reduce the frequency of view recomputation by detecting cases where a base update is irrelevant to a view, and cases where a view is self maintainable given a base update. We develop an approach that reduces the irrelevance and self maintainability tests, respectively, to checking the intersection and containment of XPath expressions. We present experimental results showing the effectiveness of the proposed approach in reducing view recomputations.

Original languageEnglish (US)
Title of host publicationVLDB 2006 - Proceedings of the 32nd International Conference on Very Large Data Bases
Pages583-594
Number of pages12
StatePublished - Dec 1 2006
Externally publishedYes
Event32nd International Conference on Very Large Data Bases, VLDB 2006 - Seoul, Korea, Republic of
Duration: Sep 12 2006Sep 15 2006

Publication series

NameVLDB 2006 - Proceedings of the 32nd International Conference on Very Large Data Bases

Other

Other32nd International Conference on Very Large Data Bases, VLDB 2006
CountryKorea, Republic of
CitySeoul
Period9/12/069/15/06

ASJC Scopus subject areas

  • Hardware and Architecture
  • Information Systems
  • Software
  • Information Systems and Management

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  • Cite this

    Sawires, A., Tatemura, J., Po, O., Agrawal, D., El Abbadi, A., & Candan, K. S. (2006). Maintaining XPath views in loosely coupled systems. In VLDB 2006 - Proceedings of the 32nd International Conference on Very Large Data Bases (pp. 583-594). (VLDB 2006 - Proceedings of the 32nd International Conference on Very Large Data Bases).