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. 20, 2008
Filed:
Jun. 17, 2005
Thomas Abel Beavin, Milpitas, CA (US);
Mengchu Cai, San Jose, CA (US);
Yao-ching Stephen Chen, Saratoga, CA (US);
Hsiuying Yen Cheng, Fremont, CA (US);
Fen-ling Lin, San Jose, CA (US);
Irene Ching-hua Liu, San Jose, CA (US);
Jerry Mukai, San Jose, CA (US);
Demai NI, Davis, CA (US);
Yoichi Tsuji, San Jose, CA (US);
LI Xia, San Jose, CA (US);
Ying Zeng, Santa Clara, CA (US);
Thomas Abel Beavin, Milpitas, CA (US);
Mengchu Cai, San Jose, CA (US);
Yao-Ching Stephen Chen, Saratoga, CA (US);
Hsiuying Yen Cheng, Fremont, CA (US);
Fen-Ling Lin, San Jose, CA (US);
Irene Ching-Hua Liu, San Jose, CA (US);
Jerry Mukai, San Jose, CA (US);
Demai Ni, Davis, CA (US);
Yoichi Tsuji, San Jose, CA (US);
Li Xia, San Jose, CA (US);
Ying Zeng, Santa Clara, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Techniques are provided that determine that a query includes at least one subquery that may be correlated or decorrelated. An internal representation of the query that represents the subquery in both correlated and decorrelated form is generated, wherein the internal representation includes at least one virtual table.