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Erschienen in:
2010 | OriginalPaper | Buchkapitel
The Location Path to Hell Is Paved With Unoptimized Axes: XPath Implementation Tips
verfasst von : Martin Kruliš, Jakub Yaghob
Erschienen in: Networked Digital Technologies
Verlag: Springer Berlin Heidelberg
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Effective processing of location axes is essential for fast XPath implementation. Direct approach can be quite inefficient and the performance of the whole XPath processor may suffer, since location axes are present in every location step of every location path. We propose axes optimizations, indices and algorithms that should improve performance in many situations. These algorithms are designed to accomodate features of nowadays processors and they can be implemented in parallel fashion without extensive modifications.