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. 15, 2012
Filed:
Nov. 08, 2007
Ning Zhang, Belmont, CA (US);
Thomas Baby, Foster City, CA (US);
Sivasankaran Chandrasekar, Palo Alto, CA (US);
Nipun Agarwal, Santa Clara, CA (US);
Ning Zhang, Belmont, CA (US);
Thomas Baby, Foster City, CA (US);
Sivasankaran Chandrasekar, Palo Alto, CA (US);
Nipun Agarwal, Santa Clara, CA (US);
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
A query is rewritten to combine streaming evaluation and XML index evaluation. The query is rewritten to include a streaming operator (e.g. function) that, when executed, uses streaming evaluation. Further, the query is rewritten so that XML index evaluation of a path expression also produces location information that identifies the location of a node within an XML document. The streaming operator is able to exploit the location information to begin and end scanning rather than scanning the entire XML document.