Outline


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Table of Contents

Title Page

Outline

Introduction

Indexes for Data Warehouses

A Motivating Example

Storage for Example DB

Indexes have nontrivial additional storage needs

Our Solution: Positional Indexing

The Positional Index

No Additional Storage Needed

Performance Evaluation

Schema Used in Analysis

Query Processing Tests

Storage Requirements

Query Performance: 2-Way Join

Query Performance: 4-Way Join

Query Performance: 4-Way Join, Aggregation

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Conclusion

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