Virtual denormalization via array index reference for main memory OLAP

  • Yansong Zhang
  • , Xuan Zhou
  • , Ying Zhang
  • , Yu Zhang
  • , Mingchuan Su
  • , Shan Wang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

Denormalization is a common tactic for enhancing performance of data warehouses. However, it is rarely used in main memory databases, which regards storage space as scarce resource. In this paper, we demonstrate that MMDB can actually benefit from the strategy of denormalization. We have created A-Store, a prototypical main-memory database system customized for star and snowflake schemas, which applies the strategy of denormalization to achieve highly efficient OLAP. Instead of resorting to fully materialized denormalization, A-Store applies a method called virtual denomalization, which allows query processing to be performed in a denormalized way, while without incurring additional space consumption.

Original languageEnglish
Title of host publication2016 IEEE 32nd International Conference on Data Engineering, ICDE 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1486-1487
Number of pages2
ISBN (Electronic)9781509020195
DOIs
StatePublished - 22 Jun 2016
Externally publishedYes
Event32nd IEEE International Conference on Data Engineering, ICDE 2016 - Helsinki, Finland
Duration: 16 May 201620 May 2016

Publication series

Name2016 IEEE 32nd International Conference on Data Engineering, ICDE 2016

Conference

Conference32nd IEEE International Conference on Data Engineering, ICDE 2016
Country/TerritoryFinland
CityHelsinki
Period16/05/1620/05/16

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