OptimAX: optimizing distributed continuous queries

Serge Abiteboul 1 Ioana Manolescu 1 Spyros Zoupanos 1
1 GEMO - Integration of data and knowledge distributed over the web
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 : The system we propose to present, OptiMAX, applies the principles of distributed query optimization to the problem of distributed evaluation of continuous XML queries. OptiMAX is an optimizer for Active XML documents (AXML in short). It is implemented as a module which can be used next to an AXML peer, and it may be invoked whenever users ask queries on their AXML documents. The optimizer draws up an initial query plan, and then attempts to rewrtite it using a combination of heuristics and cost information in order to improve the plan's performance estimates. An interesting feature is that all plans are AXML documents themselves. When the optimizer has retained a plan, it hands it to the AXML peer, which evaluates it directly following the decisions taken by the optimizer.
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Communication dans un congrès
BDA 2007, Oct 2007, Marseille, France
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Contributeur : Spyros Zoupanos <>
Soumis le : jeudi 26 juillet 2007 - 19:10:32
Dernière modification le : jeudi 5 avril 2018 - 12:30:12
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Serge Abiteboul, Ioana Manolescu, Spyros Zoupanos. OptimAX: optimizing distributed continuous queries. BDA 2007, Oct 2007, Marseille, France. 〈inria-00165639〉

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