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SIGMOD
2005
ACM

Towards a Robust Query Optimizer: A Principled and Practical Approach

10 years 12 months ago
Towards a Robust Query Optimizer: A Principled and Practical Approach
Research on query optimization has focused almost exclusively on reducing query execution time, while important qualities such as consistency and predictability have largely been ignored, even though most database users consider these qualities to be at least as important as raw performance. In this paper, we explore how the query optimization process can be made more robust, focusing on the important subproblem of cardinality estimation. The robust cardinality estimation technique that we propose allows for a user- or application-specified trade-off between performance and predictability, and it captures multi-dimensional correlations while remaining space- and time-efficient.
Brian Babcock, Surajit Chaudhuri
Added 08 Dec 2009
Updated 08 Dec 2009
Type Conference
Year 2005
Where SIGMOD
Authors Brian Babcock, Surajit Chaudhuri
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