The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 14, 2009
Filed:
Dec. 19, 2002
Guy Maring Lohman, San Jose, CA (US);
Nimrod Megiddo, Palo Alto, CA (US);
Jun Rao, San Jose, CA (US);
Chun Zhang, San Jose, CA (US);
Guy Maring Lohman, San Jose, CA (US);
Nimrod Megiddo, Palo Alto, CA (US);
Jun Rao, San Jose, CA (US);
Chun Zhang, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A system for automating data partitioning in a parallel database includes plural nodes connected in parallel. Each node includes a database server and two databases connected thereto. Each database server includes a query optimizer. Moreover, a partitioning advisor communicates with the database server and the query optimizer. The query optimizer and the partitioning advisor include a program for recommending and evaluating data table partitions that are useful for processing a workload of query statements. The data table partitions are recommended and evaluated without requiring the data tables to be physically repartitioned.