Method of topological relations query processing based on MBR&IR
In order to improve the query efficiency of spatial database system,the method of topological relations query processing based on MBRIR is proposed by introducing IR into the R* tree index structure based on the traditional topological relations query method.The basic idea is that the data objects that satisfy the query conditions are selected while the data objects that do not satisty the query conditions are excluded by increasing the constraint condition of IR during the filte step,which will improve the performance of fiter step and reduce the system cost.Therefore,the query efficiency is improved.The experimental result shows that the method of query processing based on MBRIR outperforms the traditional topological relations query method.