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Algebraic incremental maintenance of XML views

Abstract : Materialized views can bring important performance benefits when querying XML documents. In the presence of XML document changes, materialized views need to be updated to faithfully reflect the changed document. In this work, we present an algebraic ap- proach for propagating source updates to XML materialized views expressed in a powerful XML tree pattern formalism. Our approach differs from the state of the art in the area in two important ways. First, it relies on set-oriented, algebraic operations, to be contrasted with node-based previous approaches. Second, it exploits state-of- the-art features of XML stores and XML query evaluation engines, notably XML structural identifiers and associated structural join algorithms. We present algorithms for determining how updates should be propagated to views, and highlight the benefits of our ap- proach over existing algorithms through a series of experiments.
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Submitted on : Tuesday, September 20, 2011 - 11:51:56 AM
Last modification on : Thursday, July 8, 2021 - 3:48:43 AM
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  • HAL Id : inria-00624986, version 1



Angela Bonifati, Martin Goodfellow, Ioana Manolescu, Domenica Sileo. Algebraic incremental maintenance of XML views. EDBT: 14th International Conference on Extending Database Technology, Mar 2011, Uppsala, Sweden. ⟨inria-00624986⟩



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