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JFP
2006

Static analysis for path correctness of XML queries

10 years 4 months ago
Static analysis for path correctness of XML queries
A part of a query that will never contribute data to the query answer should be regarded as an error. This principle has been recently accepted into mainstream XML query languages, but was still waiting for a complete treatment. We provide here a precise definition for this class of errors, and define a type system that is sound and complete, in its search for such errors, for a core language, under mild restrictions on the use of recursion in type definitions. In the process, we describe a dichotomy among existential and universal type systems, which is essential to understand some specific features of our type system.
Dario Colazzo, Giorgio Ghelli, Paolo Manghi, Carlo
Added 13 Dec 2010
Updated 13 Dec 2010
Type Journal
Year 2006
Where JFP
Authors Dario Colazzo, Giorgio Ghelli, Paolo Manghi, Carlo Sartiani
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