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:
Dec. 18, 2018
Filed:
Nov. 23, 2015
International Business Machines Corporation, Armonk, NY (US);
Lukasz Gaza, Jankowice, PL;
Artur M. Gruszecki, Cracow, PL;
Tomasz Kazalski, Cracow, PL;
Konrad K. Skibski, Zielonki, PL;
Tomasz K. Stradomski, Bedzin, PL;
International Business Machines Corporation, Armonk, NY (US);
Abstract
In an approach to preparing a query execution plan, a host node receives a query implicating one or more data tables. The host node broadcasts one or more implicated data tables to one or more processing nodes. The host node receives a set of node-specific query execution plans and execution cost estimates associated with each of the node-specific query execution plans, which have been prepared in parallel based on global statistics and node-specific low level statistics. The host node selects an optimal query execution plan based on minimized execution cost.