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. 17, 2011
Filed:
Mar. 08, 2007
Applicants:
Rafi Ahmed, Fremont, CA (US);
Allison Lee, Sunnyvale, CA (US);
Dinesh Das, Redwood City, CA (US);
Inventors:
Assignee:
Oracle International Corporation, Redwood Shores, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 7/00 (2006.01); G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
Join predicate push down transformations push down a join predicate of an outer query into a view. Among the types of views for which join predicate push down is performed are a view with a GROUP BY or DISTINCT operator, an anti-joined or semi-joined view, and a view that contains one or more nested views. During optimization, join predicate push down may be used to generate many transformed queries for comparison. The number of query transformations performed for comparison is managed.