A query optimization strategy for distributed databases on all-optical networks

In the last ten years, optical communication has become a viable technology and is rapidly replacing computer communication based on copper wires. The speed of optical communication is much higher than the speed of electronic devices and we now need to re-examine the cost criteria for data communication in distributed computing. We have shown that the basic assumptions in query optimization for distributed databases are not valid in all-optical networks. We have proposed a new strategy for query optimization appropriate for such networks