Foto N. Afrati, Stavros S. Cosmadakis, Stéphane Grumbach, Gabriel M. Kuper. Linear vs Polynomial Constraints in Database Query Languages. In Alan Borning, editor, Principles and Practice of Constraint Programming, Second International Workshop, PPCP 94, Rosario, Orcas Island, Washington, USA, May 2-4, 1994, Proceedings. Volume 874 of Lecture Notes in Computer Science, pages 181-192, Springer, 1994.
Abstract is missing.