Structural Map: A New Index for Efficient XML Path Expression Processing

  • Shihui Zheng
  • Aoying Zhou
  • Jeffrey Xu Yu
  • Long Zhang
  • Han Tao
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 2419)

Abstract

XML is merging as the main standard of presentation and exchange on the Internet. Various XML query languages are proposed. As a ubiquitous part of those XML query languages, path expression poses a new challenge for efficient XML query processing in database systems. In this paper, we present a new index structure, Structural Map, for efficient evaluation of path expression queries. Structural Map can be used to support path-indices as well as value-indices in an integrated manner. It is powerful to handle not only simple path expressions but also the branching path expressions and path expressions with predicates efficiently. Performance study shows the Structural Map can improve the performance of XML path expression processing significantly.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2002

Authors and Affiliations

  • Shihui Zheng
    • 1
  • Aoying Zhou
    • 1
  • Jeffrey Xu Yu
    • 2
  • Long Zhang
    • 1
  • Han Tao
    • 1
  1. 1.Department of Computer Science & EngineeringFudan UniversityChina
  2. 2.Dept. of Sys. Eng. & Eng. ManagementThe Chinese University of Hong KongChina

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