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:
Jun. 29, 2010
Filed:
Dec. 21, 2007
Applicants:
Grace K. AU, Rancho Palos Verdes, CA (US);
Bibhu Ranjan Priyadarshi, El Segundo, CA (US);
Ramakrishna Korlapati, El Segundo, CA (US);
Sanjay Sukumaran Nair, El Segundo, CA (US);
Inventors:
Grace K. Au, Rancho Palos Verdes, CA (US);
Bibhu Ranjan Priyadarshi, El Segundo, CA (US);
Ramakrishna Korlapati, El Segundo, CA (US);
Sanjay Sukumaran Nair, El Segundo, CA (US);
Assignee:
Teradata US, Inc., Miamisburg, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
Deriving join cost demographics for a binary join, i.e., a join between two relations each having a join column, includes using a correlation factor related to the ratio of unique join column values stored in each of a plurality of units of storage to the total number of unique values in the join column.