Conference paper
Parallel Evaluation of Recursive Rule Queries
Stavros S. Cosmadakis, Paris C. Kanellakis
SIGMOD/PODS 1986
We show that certain monotonie polynomial time queries are not expressible in variants of Datalog. The proof techniques include lower bounds for monotone circuit size and a "Pumping Lemma" for Datalog queries.
Stavros S. Cosmadakis, Paris C. Kanellakis
SIGMOD/PODS 1986
Foto Afrati, Rada Chirkova, et al.
EDBT 2009
Gerd G. Hillebrand, Paris C Kanellakis, et al.
SIGMOD/PODS/ 1991
Richard Helm, Kim Marriott, et al.
SIGMOD/PODS/ 1991