Method for matching xml twigs using index structures and...

Details Method for matching xml twigs using index structures and... Method for matching xml twigs using index structures and...

G - Physics

06

F

G06F 17/30 (2006.01)

Patent

CA 2516606

A framework defining a family of index structures useful in evaluating XML path expressions (i.e., twigs) in XML database is disclosed. Within this framework, two particular index structures with different space-time tradeoffs are presented that prove effective for the evaluation of twigs with value conditions. These index structures can be realized using access methods of an underlying relational database system. Experimental results show that the indices disclosed achieve significant improvement in performance for evaluating twig queries as compared with previously proposed XML path indices.

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