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. 20, 2020
Filed:
Aug. 30, 2018
International Business Machines Corporation, Armonk, NY (US);
Craig S. Aldrich, Rochester, MN (US);
Mark J. Anderson, Rochester, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A query optimizer improves the efficiency of a computer database system utilizing an input-output correlator used with a create function that indicates a correlation between an input to the function and an output of the function. In an example, the input-output correlator is an OR OUTPUT parameter of a create table function. The query optimizer determines whether it can pass a value of a query to the input of the function in response to the input-output correlator. Under appropriate conditions, the query optimizer passes the query value to the input of the function to significantly reduce the amount of data returned by the function thereby reducing the load on database resources.