The traditional focus of relational query optimization schemes has been on the choice of join methods and join orders. Restrictions have typically been handled in query optimizers ...
In existing relational database systems, processing of group-by and computation of aggregate functions are always postponed until all joins are performed. In this paper, we presen...
In many information systems, the databases that make up the system are distributed in different modules or branch offices according to the requirements of the business enterprise. ...
In order to enable communication between a dynamic collection of peers with given ID’s, such as “machine.cs.school.edu”, over the Internet, a distributed name service must b...
The goal of a threshold query is to detect all objects whose score exceeds a given threshold. This type of query is used in many settings, such as data mining, event triggering, a...
Guy Sagy, Daniel Keren, Izchak Sharfman, Assaf Sch...