One Improved Algorithm for Distributed Query Optimization
Chunyan Yu · Modern Computer · 2006
Distributed query optimization is an important aspect of the technology of the distributed database. We mainly research on some operations that have higher executing cost. In this paper, we first illuminate the primary objective of distributed query optimization, in succession introduce two algorithms about query optimization:1-PSJ and n-PSJ. Then according to them, we put forward one new algorithm-CR (Compressed and Reliable). It has better efficiency to apply this algorithm to the database for geography.