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RTA
1993
Springer
13 years 9 months ago
Redundancy Criteria for Constrained Completion
This paper studies completion in the case of equations with constraints consisting of rstorder formulae over equations, disequations, and an irreducibility predicate. We present s...
Christopher Lynch, Wayne Snyder
VLDB
2005
ACM
126views Database» more  VLDB 2005»
13 years 10 months ago
Consistently Estimating the Selectivity of Conjuncts of Predicates
Cost-based query optimizers need to estimate the selectivity of conjunctive predicates when comparing alternative query execution plans. To this end, advanced optimizers use multi...
Volker Markl, Nimrod Megiddo, Marcel Kutsch, Tam M...
ICFP
2004
ACM
14 years 4 months ago
A sound (and complete) model of contracts
Even in statically typed languages it is useful to have certain invariants checked dynamically. Findler and Felleisen gave an algorithm for dynamically checking expressive higher-...
Matthias Blume, David A. McAllester