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. 05, 2020
Filed:
Aug. 11, 2015
Sybase, Inc., Dublin, CA (US);
Steven Kirk, Chelmsford, MA (US);
Roland McKenney, Burlington, MA (US);
David Walrath, Stow, MA (US);
Sybase, Inc., Dublin, CA (US);
Abstract
A method may include accepting a database query including an operator requesting two or more incoming tuple streams be combined into a result tuple stream. At least one data value in the incoming tuple streams may be represented by an enumeration value. The method may include generating a query execution plan for the database query. The query execution plan may include encoding the enumeration value and a corresponding source identifier into a composite union enumeration. The source identifier may identify which of the two or more tuple streams corresponds to the enumeration value. The method may further include executing the database query according to the query execution plan to obtain the data value and providing the data value in response to the database query.