Invention Grant
US07783661B2 Method and apparatus for optimizing queries in a logically partitioned computer system
有权
用于优化逻辑分区计算机系统中的查询的方法和装置
- Patent Title: Method and apparatus for optimizing queries in a logically partitioned computer system
- Patent Title (中): 用于优化逻辑分区计算机系统中的查询的方法和装置
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Application No.: US11931900Application Date: 2007-10-31
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Publication No.: US07783661B2Publication Date: 2010-08-24
- Inventor: Paul Reuben Day , Robert Douglas Driesch, Jr. , Randy Lynn Egan , Jeffrey Wayne Tenner
- Applicant: Paul Reuben Day , Robert Douglas Driesch, Jr. , Randy Lynn Egan , Jeffrey Wayne Tenner
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agent Roy W. Truelson
- Main IPC: G06F17/30
- IPC: G06F17/30

Abstract:
A database query optimizer for a computer system having dynamically configurable logical partitions generates an optimized query strategy which is dependent on a logical partition configuration. When the query is executed, the configuration of the logical partition in which the query is executed is compared to the logical partition configuration for which the query was optimized. If the configurations are different, a new query can be automatically generated. Optimizing database queries to the current system configuration of a dynamic, logically partitioned system potentially offers greater efficiency in the execution of database queries for complex, logically partitioned systems.
Public/Granted literature
- US20080059438A1 Method and Apparatus for Optimizing Queries in a Logically Partitioned Computer System Public/Granted day:2008-03-06
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