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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
Inria Saclay - Ile de France, LRI - Laboratoire de Recherche en Informatique, UP11 - Université Paris-Sud - Paris 11, 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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Submitted on : Tuesday, November 27, 2012 - 11:12:17 AM
Last modification on : Friday, January 7, 2022 - 4:56:03 PM
Long-term archiving on: : Saturday, December 17, 2016 - 3:51:32 PM


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  • HAL Id : hal-00757544, version 1



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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