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:
Dec. 31, 2024
Filed:
Jun. 16, 2023
Sap SE, Walldorf, DE;
Heiko Gerwens, Heidelberg, DE;
Johannes Merx, Heidelberg, DE;
SAP SE, Walldorf, DE;
Abstract
Techniques and solutions are provided for improving query performance of queries that can dynamically switch between accessing different data sources for a particular operation. The disclosure provides an object type, which can be referred to as a configuration object, that specifies which of multiple data sources should be used in query execution at a particular point in time. Values that specify a data source can be included as data in an instance of the object type, such as values in a relational database table that implements the configuration object. A data source to be used with a query can be changed dynamically by updating contents of the table. During query optimization, a query optimizer can recognize that the configuration object is of a particular type that causes the query optimizer to access contents of the configuration object. The contents can be used to prune portions of a query plan.