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. 11, 2022
Filed:
Sep. 28, 2020
Teradata Us, Inc., San Diego, CA (US);
Mohamed Ahmed Yassin Eltabakh, Worcester, MA (US);
Mahbub Hasan, Bellevue, WA (US);
Awny Kayed Al-Omari, Cedar Park, TX (US);
Mohammed Al-Kateb, Rancho Palos Verdes, CA (US);
Teradata US, Inc., San Diego, CA (US);
Abstract
A relational database management system (RDBMS) optimizes limit queries over analytical functions, wherein the limit queries include an output clause comprising a LIMIT, TOP and SAMPLE clause with an expression specifying a limit that is a number K or a percentage α %. The optimizations of the limit queries include: (1) static compile-time optimizations, and (2) dynamic run-time optimizations, based on semantic properties of 'granularity' and 'input-to-output cardinality' for the analytical functions.