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Automated Physical Database Design and Tuning
book

Automated Physical Database Design and Tuning

by Nicolas Bruno
February 2011
Intermediate to advanced content levelIntermediate to advanced
253 pages
8h 4m
English
CRC Press
Content preview from Automated Physical Database Design and Tuning
Enumerating the Search Space 109
0
2000
4000
6000
8000
0 1000 2000 3000
Required Space (MB)
Estimated Execution Time
FIGURE 6.5 Top-down search output for a TPC-H database.
until a stopping condition is satisfied (typically a time bound). Each iteration
during enumeration consists of the following steps. First, we evaluate the
current configuration and store it in the global cache of configurations (step 2
in the figure). Then, we consider transformations that generate new candidate
configurations from the current one (step 3 in the figure). We transform a
Pruned? Retrieve New
Pick Best
Generate
Current
Configuration
Candidate
Configuration
Initial
Configuration
Best
Configuration ...
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Publisher Resources

ISBN: 9781439815670