2007•Computer Technology and DevelopmentRequires access

Analysis and Improvement of Structural Join Order Selection Algorithm on XML Query

Jinjing Xie

Abstract

Today,it's hot to analyse XML query optimization.Structural join operations are central in XML query processing.As join operation to relational database,structural join order selection is at the heart of query optimization in an XML database.In this paper,analyze the basic structural join algorithms and introduce a new algorithm,this algorithm can effectively reduce index spaces.

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Available abstract

Key concepts: Computer science, Query optimization, Sort-merge join, XML database, Join (topology), Sargable, Hash join, Information retrieval