Type-Based Detection of XML Query-Update Independence

Nicole Bidoit 1, 2 Dario Colazzo 1, 2 Federico Ulliana 1, 2
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.
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https://hal.inria.fr/hal-00757544
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Submitted on : Tuesday, November 27, 2012 - 11:12:17 AM
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Nicole Bidoit, Dario Colazzo, Federico Ulliana. Type-Based Detection of XML Query-Update Independence. Proceedings of the VLDB Endowment (PVLDB), VLDB Endowment, 2012. ⟨hal-00757544⟩

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