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:
Mar. 04, 2025
Filed:
Jan. 25, 2024
Oracle International Corporation, Redwood Shores, CA (US);
James Kearney, Bolton, MA (US);
Weiwei Gong, Belmont, CA (US);
Oracle International Corporation, Redwood Shores, CA (US);
Abstract
Data structures and methods are described to enable a hardware optimized dynamic string table for accelerating relational database queries. A method comprises retrieving a lookup key for a query against a dynamic string table, the lookup key associated with a key length and a key hash. The method further comprises configuring a formatted lookup key as in-line or out-of-line based on whether the key length exceeds a maximum inline key size. The method further comprises replicating, into a first plurality of single instruction, multiple data (SIMD) lanes, the formatted lookup key. The method further comprises writing a candidate bucket, selected from the dynamic string table based on the key hash, into a second plurality of SIMD lanes. The method further comprises performing a SIMD compare of the first plurality of SIMD lanes and the second plurality of SIMD lanes, and returning an associated code when the lookup key is matched.