云数据管理系统中查询技术研究综述

A Survey of Query Techniques in Cloud Data Management Systems

作为一种全新的互联网应用模式,云计算在工业界和学术界备受关注.人们可以通过终端设备便捷地获取云端服务,并以按需使用的方式获得存储资源、计算资源以及软硬件资源.云计算的发展带来了一系列挑战性问题,而云数据的管理问题首当其冲.文中结合云数据的特点提出了一个云数据管理系统的框架,并在此基础上从索引管理、查询处理、查询优化以及在线聚集等几个方面对云数据管理系统中查询技术的研究工作进行了总结分析,指明了该领域面临的挑战和未来的研究工作.

As a revolutionary application mode in the internet, cloud computing has attracted more and more attentions from both industry and academia. Users can obtain cloud service con- veniently through terminals, and access resources of storage, computing and hardware in the Pay- As-You-Go model. The development of cloud computing brings about a series of challenging problems, data management in the cloud is of great importance. In this paper, we propose a framework of cloud data management system. Based on this framework, the key research works of query techniques in cloud data management system are classified and surveyed from several aspects, index management, query processing, query optimization and online aggregation. At last, the suggestions for future research are put forward.