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:
Oct. 01, 2024
Filed:
Jul. 09, 2020
Applicant:
Sap SE, Walldorf, DE;
Inventors:
Peter Lysakovski, Heidelberg, DE;
Guido Moerkotte, Mannheim, DE;
Norman May, Karlsruhe, DE;
Diego Havenstein, Munich, DE;
Gabriele Steidl, Berlin, DE;
Assignee:
SAP SE, Walldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 17/16 (2006.01); G06F 16/242 (2019.01); G06F 16/2453 (2019.01); G06F 17/11 (2006.01);
U.S. Cl.
CPC ...
G06F 17/16 (2013.01); G06F 16/2428 (2019.01); G06F 16/24545 (2019.01); G06F 17/11 (2013.01);
Abstract
A system includes determination of a query comprising z predicates, determination of known selectivities of each of a set of conjuncts of the z predicates, and estimation of selectivities of all conjuncts of the z predicates based on the known selectivities and a recursive determination of Cx, where x represents selectivities of all complete conjuncts of the z predicates and C is a complete design matrix complete design matrix (c)=1 if i⊆j, else 0, having indices [0, 2−1].