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. 20, 2015
Filed:
Dec. 29, 2011
Applicants:
Yu Xu, Burlingame, CA (US);
Olli Pekka Kostamaa, Santa Monica, CA (US);
Inventors:
Yu Xu, Burlingame, CA (US);
Olli Pekka Kostamaa, Santa Monica, CA (US);
Assignee:
Teradata US, Inc., Dayton, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/30 (2006.01);
U.S. Cl.
CPC ...
Abstract
Techniques for external application-directed data partitioning in data exported from a parallel database management system (DBMS) are provided. An external application sends a query, a total number of requested access module processors (AMPs), and an application-defined data partitioning expression to the DBMS. The DBMS executes the query with the results vertical partitioned on the identified number of AMPs. Individual external mappers access their assigned AMPs asking for specific partitions that they are assigned to process the query results.