Size and Treewidth Bounds for Conjunctive Queries
J. ACM, ArticleNo.16, 2012.
Treewidth Boundsresult sizefunctional dependencyquery Q. Intuitivelyresult QMore(7+)
This article provides new worst-case bounds for the size and treewith of the result Q(D) of a conjunctive query Q applied to a database D. We derive bounds for the result size |Q(D)| in terms of structural properties of Q, both in the absence and in the presence of keys and functional dependencies. These bounds are based on a novel “color...More
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