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:
Sep. 07, 2021
Filed:
Dec. 18, 2017
Teradata Us, Inc., Dayton, OH (US);
Mohammed Al-Kateb, Rolling Hills Estates, CA (US);
Grace Kwan-On Au, Rancho Palos Verdes, CA (US);
Rama Krishna Korlapati, El Segundo, CA (US);
Lu Ma, Tenafly, NJ (US);
Sanjay Nair, El Segundo, CA (US);
Teradata US, Inc., San Diego, CA (US);
Abstract
A query having a Union All view is identified. A logical join between Union AH view/derived table and other tables is broken down into multiple physical joins. The physical joins are pushed to the branches. Cost-based processing statistics are obtained for the branches. An optimal plan for the joins is selected based on the statistics; representing an optimal query execution for the query. The optimal query execution plan is provided to a database engine for executing the optimal query execution plan against a data warehouse.