Table of Contents
A Common On-Demand Integration Architecture
Operation of Mediators and Wrappers: Query Decomposition and Translation
Operation of Wrappers and Mediators: Result Translation and Fusion
PPT Slide
Query Processing
Mediator Specification Interpreter Architecture
Query Rewriting When Known Origins of Information
Query Rewriter Pushes Query Conditions to Sources
Passing Bindings Plan
Local Join Plan
PPT Slide
PPT Slide
PPT Slide
Choose Queries for Fetching Data and Join Techniques
SQL Engines Should be Enhanced with Passing Bindings Join
PPT Slide
PPT Slide
PPT Slide
Metadata Management
Exponential Explosion of Logical Datamerge Rules / Queries
Improved Passing Bindings Plan
Reduce the Cost of Query Rewriting and Optimization
PPT Slide
Local Join Plan (after Subsumption)
Object Fusion Queries are Inherently Expensive
Cost Based Optimization
Learning Source Performance
Simple and General: Estimate the Cost of each Query Pattern
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Author: Yannis Papakonstantinou
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