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1 LRI - Laboratoire de Recherche en Informatique 2 OAK - Database optimizations and architectures for complex large data LRI - Laboratoire de Recherche en Informatique, UP11 - Université Paris-Sud - Paris 11, Inria Saclay - Ile de France, CNRS - Centre National de la Recherche Scientifique : UMR8623

Abstract : This paper presents a novel static analysis technique to detect XML query-update independence, in the presence of a schema. Rather than types, our system infers chains of types. Each chain represents a path that can be traversed on a valid document during query-update evaluation. The resulting independence analysis is precise, although it raises a challenging issue: recursive schemas may lead to infer infinitely many chains. A sound and complete approximation technique ensuring a finite analysis in any case is presented, together with an efficient implementation performing the chain based analysis in polynomial space and time.

Keywords : Updates Types Independence XML





Author: Nicole Bidoit - Dario Colazzo - Federico Ulliana -

Source: https://hal.archives-ouvertes.fr/



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