In this paper we deal with the logical and physical optimization of select-from-where queries over interval probabilistic data. We present a data model with algebraic equivalences, to be used to verify the equivalence of alternative query plans, and propose and compare different join algorithms over uncertain relations. We also provide a preliminary experimental evaluation of our contributions.
M. Magnani, D. Montesi (2008). Optimization of Queries over Interval Probabilistic Data. BERLIN : Springer.
Optimization of Queries over Interval Probabilistic Data
MAGNANI, MATTEO;MONTESI, DANILO
2008
Abstract
In this paper we deal with the logical and physical optimization of select-from-where queries over interval probabilistic data. We present a data model with algebraic equivalences, to be used to verify the equivalence of alternative query plans, and propose and compare different join algorithms over uncertain relations. We also provide a preliminary experimental evaluation of our contributions.File in questo prodotto:
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