A general framework for the optimization of object-oriented queries
S Cluet, C Delobel - ACM SIGMOD Record, 1992 - dl.acm.org
S Cluet, C Delobel
ACM SIGMOD Record, 1992•dl.acm.orgThe goal of this work is to integrate in a general framework the different query optimization
techniques that have been proposed in the object-oriented context. As a first step, we focus
essentially on the logical aspect of query optimization. In this paper, we propose a formalism
(i) that unifies different rewriting formalisms,(ii) that allows easy and exhaustive factorization
of duplicated subqueries, and (iii) that supports heuristics in order to reduce the optimization
rewriting phase.
techniques that have been proposed in the object-oriented context. As a first step, we focus
essentially on the logical aspect of query optimization. In this paper, we propose a formalism
(i) that unifies different rewriting formalisms,(ii) that allows easy and exhaustive factorization
of duplicated subqueries, and (iii) that supports heuristics in order to reduce the optimization
rewriting phase.
The goal of this work is to integrate in a general framework the different query optimization techniques that have been proposed in the object-oriented context. As a first step, we focus essentially on the logical aspect of query optimization. In this paper, we propose a formalism (i) that unifies different rewriting formalisms, (ii) that allows easy and exhaustive factorization of duplicated subqueries, and (iii) that supports heuristics in order to reduce the optimization rewriting phase.