发明名称 AGGREGATE QUERY OPTIMIZATION
摘要 A method, computer program product, and system for optimizing aggregate queries are provided. The method, computer program product, and system provide for receiving an aggregate query comprising a GROUP BY operation and an aggregate function, creating an access plan for executing the aggregate query, the access plan including a join between an outer relation and an inner relation, and designating the join included in the access plan as an early out join.
申请公布号 US2009055350(A1) 申请公布日期 2009.02.26
申请号 US20070845031 申请日期 2007.08.24
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 BRANISH, II EDWARD GUST;HORNIBROOK JOHN F.;LA DIEU QUANG;ZUZARTE CALISTO PAUL
分类号 G06F17/30 主分类号 G06F17/30
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