Query optimization for selections using bitmaps

Author:

Wu Ming-Chuan1

Affiliation:

1. Database Research Group, Computer Science Department, Technische Universität Darmstadt, Germany

Abstract

Bitmaps are popular indexes for data warehouse (DW) applications and most database management systems offer them today. This paper proposes query optimization strategies for selections using bitmaps. Bothcontinuousanddiscreteselection criteria are considered. Query optimization strategies are categorized into static and dynamic. Static optimization strategies discussed are the optimal design of bitmaps, and algorithms based on tree and logical reduction. The dynamic optimization discussed is the approach of inclusion and exclusion for both bit-sliced indexes and encoded bitmap indexes.

Publisher

Association for Computing Machinery (ACM)

Subject

Information Systems,Software

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2. MoHA: A Composable System for Efficient In-Situ Analytics on Heterogeneous HPC Systems;SC20: International Conference for High Performance Computing, Networking, Storage and Analysis;2020-11

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