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Query Performance Tuning with Optimal Exploration of Optimizer Cost Model Parameter Space

Wu, Wentao et al.
arXiv (All) · Papers
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Modern query optimizers use analytical cost models to estimate the cost of a given query plan. Such cost models are typically functions of a set of "cost units" that specify unit CPU cost when processing a row or unit IO cost when accessing a disk page. These cost units are traditionally viewed as p
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