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. 28, 2019
Filed:
Nov. 13, 2014
Applicant:
Sap SE, Walldorf, DE;
Inventors:
Christoph Weyerhaeuser, Heidelberg, DE;
Tobias Mindnich, Walldorf, DE;
Johannes Merx, Heidelberg, DE;
Joerg Schad, Leimen, DE;
Stefan Dipper, Wiesloch, DE;
Assignee:
SAP SE, Walldorf, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 16/9535 (2019.01); G06F 16/2453 (2019.01); G06F 16/901 (2019.01);
U.S. Cl.
CPC ...
G06F 16/9535 (2019.01); G06F 16/2453 (2019.01); G06F 16/9024 (2019.01);
Abstract
According to an aspect, a system for moving a filter in a query model to ensure query semantics includes a query engine configured to obtain a query model for a query to be executed on a database. The query engine includes a query optimizer configured to instantiate the query model by merging the query with the query model. The query optimizer includes a filter mover configured to move a filter to a point within the instantiated query model such that semantics for the query within the instantiated query model is ensured.