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A hybrid estimator for selectivity estimation

IEEE Transactions on Knowledge and Data Engineering, 1999
Traditional sampling-based estimators infer the actual selectivity of a query based purely on runtime information gathering, excluding the previously collected information, which underutilizes the information available. Table-based and parametric estimators extrapolate the actual selectivity of a query based only on the previously collected information,
Yibei Ling   +3 more
openaire   +1 more source

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