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:
Nov. 22, 2016
Filed:
May. 19, 2016
International Business Machines Corporation, Armonk, NY (US);
Naresh K. Chainani, Portland, OR (US);
Kiran K. Chinta, Hillsboro, OR (US);
Yuan Su, Unionville, CA;
Liping Zhang, Portland, OR (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method for use in processing database queries performed on a database, having tables made up of outer table data and corresponding inner table data, distributed among storage associated with multiple nodes of a multi-threaded cluster of computers is described. The method involves, on each node, constructing a Bloom filter by writing a local portion of the complete Bloom filter and then receiving and merging Bloom filter components sent from each node using different startingOffset positions and then, once the Bloom filter is complete at a node, using the complete Bloom filter as a join filter in a table join operation, without regard to Bloom filter construction occurring at other nodes.