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. 31, 2016
Filed:
Jun. 29, 2012
Stefan Arndt, Leipzig, DE;
Gopi K. Attaluri, San Jose, CA (US);
Ronald J. Barber, San Jose, CA (US);
Guy M. Lohman, San Jose, CA (US);
Lin Qiao, San Jose, CA (US);
Vijayshankar Raman, Sunnyvale, CA (US);
Eugene J. Shekita, San Jose, CA (US);
Richard S. Sidle, Mountain View, CA (US);
Stefan Arndt, Leipzig, DE;
Gopi K. Attaluri, San Jose, CA (US);
Ronald J. Barber, San Jose, CA (US);
Guy M. Lohman, San Jose, CA (US);
Lin Qiao, San Jose, CA (US);
Vijayshankar Raman, Sunnyvale, CA (US);
Eugene J. Shekita, San Jose, CA (US);
Richard S. Sidle, Mountain View, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Embodiments of the present invention provide a database processing system for efficient partitioning of a database table with column-major layout for executing one or more join operations. One embodiment comprises a method for partitioning a database table with column-major layout, partitioning only the join-columns by limiting the partitions by size and number, executing one or more join operations for joining the partitioned columns, and optionally de-partitioning the join result to the original order by sequentially writing and randomly reading table values using P cursors.