Table of Contents
A Common Integration Architecture
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Mediator Adapts Using Descriptions of Supported Queries
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The Relational Query Description Language (RQDL)
RQDL Can Describe Large and Infinite Sets of Supported Queries
RQDL allows Schema Independent Descriptions
Issues in Capabilities Based Query Rewriting
The Capabilities Based Rewriter
Discover Relevant Supported Queries, then Combine them
…and finally Refine Plans
CSQ Discovery Generates only CSQs Useful for Deriving Optimal Plans
Plan Construction is Tuned for Efficiency in Common Cases
Passing Required Bindings via Nested Loops Joins
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Related Work
Related Work in Query Containment
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Tight Coupling of Optimizer with CBR
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Handle Arbitrary Operators by Rewriting and Checking Feasibility
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Author: Yannis Papakonstantinou
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