Abstract
Efficient query processing is still a challenging task, despite the emergence of the ODMG'93 standard. What we need is both an algebra-to perform algebraic optimization- and an intermediate language that could be used as a target language for OQL-like query compilers.
In this paper, we present an algebra that extends Backus's FP algebra by means of a set of powerful functionals. Our algebra has many important features. First, the number of equivalence rules is limited since one rule models many equivalence rules previously described in the context of an FP algebra. Second, many laws and heuristics described in the literature for both relational and object query optimization are represented by means of a reduced set of parametrized functionals. Finally, we believe that this algebra is a kernel of an appropriate target language for OQL-like query compilers.
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© 1997 Springer-Verlag Berlin Heidelberg
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Abbas, I., Boucelma, O. (1997). A framework for algebraic optimization of object-oriented query languages. In: Hameurlain, A., Tjoa, A.M. (eds) Database and Expert Systems Applications. DEXA 1997. Lecture Notes in Computer Science, vol 1308. Springer, Berlin, Heidelberg. https://doi.org/10.1007/BFb0022056
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DOI: https://doi.org/10.1007/BFb0022056
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