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R* Optimizer Validation and Performance Optimization for Distributed Queries Lothar F. Mackert, Guy M. Lohman IBM Almdaden Research Centre
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Introduction
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R*
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Query Optimisation
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Distributed Query Optimisation
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Cost Function
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Tasks
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Questions to Answer
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Distributed Joins
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Inner Table Transfer Strategy
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Distributed VS Local
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Relative Cost Importance
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Optimiser Evaluation
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Alternative Distributed Join Methods
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High Speed Medium Speed
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Other Parameters