发明授权
- 专利标题: Generalized partition pruning in a database system
- 专利标题(中): 数据库系统中的广义分区修剪
-
申请号: US12268391申请日: 2008-11-10
-
公开(公告)号: US07970756B2公开(公告)日: 2011-06-28
- 发明人: Thomas Abel Beavin , Sauraj Goswami , Terence Patrick Purcell
- 申请人: Thomas Abel Beavin , Sauraj Goswami , Terence Patrick Purcell
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Sawyer Law Group, P.C.
- 主分类号: G06F7/00
- IPC分类号: G06F7/00 ; G06F17/30
摘要:
A system for executing a query on data that has been partitioned into a plurality of partitions is provided. The system includes providing partitioned data including one or more columns and the plurality of partitions. The partitioned data includes a limit key value associated with each column for a given partition. The system further includes receiving a query including a predicate on one of the one or more columns of the partitioned data; and utilizing the predicate on the one of the one or more columns in a pruning decision on at least one of the one or more partitions based on the limit key values associated with the plurality of partitions.
公开/授权文献
- US20090070303A1 GENERALIZED PARTITION PRUNING IN A DATABASE SYSTEM 公开/授权日:2009-03-12
信息查询