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:
Feb. 21, 2017
Filed:
Mar. 13, 2013
Futurewei Technologies, Inc., Plano, TX (US);
Mohan Singamshetty, Sunnyvale, CA (US);
Yang Sun, Palo Alto, CA (US);
Qingqing Zhou, Santa Clara, CA (US);
Futurewei Technologies, Inc., Plano, TX (US);
Abstract
System and method embodiments are provided for improving the performance of query processing in a massively parallel processing (MPP) database system by pushing down join query processing to data nodes recursively. An embodiment method includes receiving, at a coordinator process, a join query associated with a plurality of tables of the MPP database system, generating, at the coordinator process, an execution plan tree for the join query, and processing, at each of a plurality of data nodes communicating with the coordinator process, the execution plan tree to obtain join query results. The method further includes, upon detecting a next join operator below a top join operator in the execution plan tree at each of the data nodes, forwarding to the other data nodes a sub-tree for the next join operator, and receiving, at each of the data nodes from the other data nodes, sub-tree processing results.