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Erschienen in:
2011 | OriginalPaper | Buchkapitel
On Simplifying Integrated Physical Database Design
verfasst von : Rima Bouchakri, Ladjel Bellatreche
Erschienen in: Advances in Databases and Information Systems
Verlag: Springer Berlin Heidelberg
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This paper deals with the problem of integrated physical database design involving two optimization techniques: horizontal data partitioning (HDP) and bitmap join indexes (BJI). These techniques compete for the same resource representing selection attributes. This competition incurs
attribute interchangeability
phenomena, where same attribute(s) may be used to select either HDP or BJI schemes. Existing studies dealing with integrated physical database design problem not consider this competition. We propose to study its contribution on simplifying the complexity of our problem. Instead of tackling it in an integrated way, we propose to start by
assigning
to each technique its own attributes and then it
launches
its own selection algorithm. This assignment is done using the K-Means method. Our design is compared with the state of the art work using APB1 benchmark. The results show that an
interchangeability attribute-aware database designer
can improve significantly query performance within the less space budget.