一种应用于DaaS的物化视图候选集生成算法

Algorithm to constructing view sets used for materialized in DaaS

针对DaaS数据中心建设中物化视图选择对候选视图集的新要求和传统MVPP方法的不足,提出一种新的候选视图集生成算法。该算法利用多操作变换规则进行查询优化,然后利用算法1和2进行关系融合。实验证明,该算法能够提高查询效率,压缩候选视图集,具有较高的可扩展性,符合应用需求。

For the new requirements of constructing view sets used for materialized in DaaS data center construction and shortcomings of the traditional MVPP method,this paper proposed a new algorithm for materializing view set generation.First,it used transformation rules to optimize the query,then used algorithm 1 and 2 to fuse all relationship.Experiment proves that the algorithm can improve the query efficiency,it compresses candidates view set and has high scalability.And it is accord with application requirements.