Optimizing Correlated Path Queries in XML Languages

@inproceedings{Zhang2002OptimizingCP,
  title={Optimizing Correlated Path Queries in XML Languages},
  author={Ning Zhang and M. Tamer {\"O}zsu},
  year={2002}
}
Path expressions are ubiquitous in XML processing languages such as XPath, XQuery, and XSLT. Expressions in these languages typically include multiple path expressions, some of them correlated. Existing approaches evaluate these path expressions one-at-a-time and miss the optimization opportunities that may be gained by exploiting the correlations among them. In this paper, we address the evaluation and optimization of correlated path expressions. In particular, we propose two types of… CONTINUE READING

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