The Community for Technology Leaders
Green Image
<p><b>Abstract</b>—Statistics play a key role in influencing the quality of plans chosen by a database query optimizer. In this paper, we identify the statistics that are essential for an optimizer. We introduce novel techniques that help significantly reduce the set of statistics that need to be created without sacrificing the quality of query plans generated. We discuss how these techniques can be leveraged to automate statistics management in databases. We have implemented and experimentally evaluated our approach on Microsoft SQL Server 7.0.</p>
Statistics, workload, query optimizer, query plan.
Vivek Narasayya, Surajit Chaudhuri, "Automating Statistics Management for Query Optimizers", IEEE Transactions on Knowledge & Data Engineering, vol. 13, no. , pp. 7-20, January/February 2001, doi:10.1109/69.908978
129 ms
(Ver 3.3 (11022016))