A New Approach of Distributed Query Processing Based on Database Grid

Abstract

Distributed query processing technology is a difficult problem of data query, at the moment, the research and result of the query processing technology which is in view of grid environment is seldom. On the basis of the current grid standard and technology and aiming at the research of distributed relation join algorithm which adapts to grid environment, the paper designs the relevant solutions, achieves the efficient distributed query processing. For the characteristics of database grid, come up with the algorithm of relation join operation in database grid-symmetrical same-ordered semi-join algorithm, this algorithm can reduces the cost of communication and improves the parallelism, and is suitable for multi-join; Second, for the algorithm characteristics, researching the relevant SQL query processing method in order to generates efficient execution plan of symmetrical same-ordered semi-join algorithm.