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:
May. 26, 2009
Filed:
Nov. 05, 2004
Bruce Gilbert Lindsay, San Jose, CA (US);
Linqi Liu, Toronto, CA;
Robert Paul Neugebauer, Stouffville, CA;
Mir Hamid Pirahesh, San Jose, CA (US);
David C. Sharpe, Oakville, CA;
Nattavut Sutyanyong, Thornhill, CA;
Calisto Paul Zuzarte, Pickering, CA;
Bruce Gilbert Lindsay, San Jose, CA (US);
Linqi Liu, Toronto, CA;
Robert Paul Neugebauer, Stouffville, CA;
Mir Hamid Pirahesh, San Jose, CA (US);
David C. Sharpe, Oakville, CA;
Nattavut Sutyanyong, Thornhill, CA;
Calisto Paul Zuzarte, Pickering, CA;
International Business Machines Corporation, Armonk, NY (US);
Abstract
Disclosed is a data processing system implemented method, a data processing system and an article of manufacture for executing a query having a union operator. A data processing system implemented method direct the data processing system to execute a query against a database having data objects. The query has sub-queries and having a union operator. The union operator is operable on sub-queries associated with the query. The database is operatively coupled to the data processing system. The data processing system implemented method including grouping the sub-queries of the union operator according to identified structural similarities, the identified structural similarities being based on an analysis of the sub-queries, grouping the data objects of the database according to the grouped sub-queries, replacing the grouped data objects and any sub-queries associated with the grouped data objects with a reference to a representative data object and a representative sub-query, and accessing at least one member of the grouped data objects, the accessing of the at least one member of the grouped data object being based on the reference.