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:
Aug. 09, 2016
Filed:
Dec. 21, 2007
Robert Joseph Bestgen, Rochester, MN (US);
David Glenn Carlson, Rochester, MN (US);
Robert Victor Downer, Rochester, MN (US);
Shantan Kethireddy, Rolling Meadows, IL (US);
Robert Joseph Bestgen, Rochester, MN (US);
David Glenn Carlson, Rochester, MN (US);
Robert Victor Downer, Rochester, MN (US);
Shantan Kethireddy, Rolling Meadows, IL (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, apparatus and program product are provided for performing a query of a database. A database query is received, which includes first and second operations respectively configured to generate first and second disjoint results sets from a dataspace. The database query is analyzed to identify a set of attributes from the dataspace that are used by at least one of the first and second operations in the database query. During execution of the database query, a plurality of records from the dataspace is iteratively processed in a single pass, including, for each of the plurality of records, processing such record by retrieving the plurality of attributes for such record from the dataspace and performing each of the first and second operations on the record using the retrieved attributes for such record to build the first and second disjoint results sets.