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:
Jan. 01, 2013
Filed:
May. 20, 2009
Applicants:
Amit Ganesh, San Jose, CA (US);
Juan R. Loaiza, Woodside, CA (US);
Krishna Kunchithapadam, Portland, OR (US);
Inventors:
Amit Ganesh, San Jose, CA (US);
Juan R. Loaiza, Woodside, CA (US);
Krishna Kunchithapadam, Portland, OR (US);
Assignee:
Oracle International Corporation, Redwood Shores, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
Techniques for compressing branch nodes in an index are provided. The branch nodes may be part of a main index of a multi-level index that also includes one or more journal indexes. A Bloom filter may be generated and associated with, e.g., a branch node in the main index. The Bloom filter is used to determine whether, without accessing any leaf blocks, a particular key value exists, e.g., in leaf blocks associated with the branch node.