发明名称 |
QUERY FEEDBACK-BASED CONFIGURATION OF DATABASE STATISTICS |
摘要 |
A method is disclosed for automatically configuring database statistics by: collecting information from a database system, the database information including data query feedback; consolidating and formatting the database information into a plurality of intervals; converting the plurality of intervals into a plurality of non-overlapping buckets; computing frequencies for the buckets by solving a constrained maximum entropy problem to create a proxy data distribution function; and using the proxy data distribution function to determine a set of statistics to maintain for the database information.
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申请公布号 |
US2008046455(A1) |
申请公布日期 |
2008.02.21 |
申请号 |
US20060465014 |
申请日期 |
2006.08.16 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BEHM ALEXANDER;HAAS PETER JAY;MARKL VOLKER GERHARD |
分类号 |
G06F7/00 |
主分类号 |
G06F7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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