New aggregation query algorithm for distributed data warehouse

Qiang Li, Xiukun Wang, Ran He, Fanhui Meng, Yiyuan Tang

Research output: Contribution to journalArticlepeer-review

Abstract

Considering the characteristics of the star-schema, this paper compresses the sorting keywords to lessen the cost of transfer and the expense of sorting, adopts the distributed aggregation operation method to reduce the number of groups which need to transfer and create complete aggregation result in request site. This work will greatly reduce the cost of data processing and the cost of data transmission between sites, thereby increase the efficiency of aggregation query of the distributed data warehouse.

Original languageEnglish
Pages (from-to)91-93
Number of pages3
JournalJisuanji Gongcheng/Computer Engineering
Volume32
Issue number4
StatePublished - Feb 20 2006

Keywords

  • Aggregation query
  • Distributed data warehouse
  • Star schema

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