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. 21, 2016
Filed:
Apr. 04, 2013
Applicant:
Amazon Technologies, Inc., Reno, NV (US);
Inventors:
Hakan Jakobsson, San Francisco, CA (US);
Zelaine Fong, San Carlos, CA (US);
Assignee:
Amazon Technologies, Inc., Reno, NV (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/00 (2006.01); G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
G06F 17/30448 (2013.01);
Abstract
A data warehousing system maintains large tables comprising a significant quantity of historical data. In general, the addition of small quantities of additional data is not likely to significantly alter the accuracy of statistics relied upon by a query optimizer. However, certain statistics may have an influence on optimizer behavior, even though the size of the additional data is small. Certain statistics relied on by the optimizer may be incrementally updated based at least in part on characteristics of the additional data without requiring a scan of the preexisting data.