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:
Jan. 06, 1998
Filed:
May. 07, 1996
Atul Chadha, Milpitas, CA (US);
Ashish Gupta, Saratoga, CA (US);
Piyush Goel, Monte Sereno, CA (US);
Venkatesh Harinarayan, Stanford, CA (US);
Balakrishna Raghavendra Iyer, San Jose, CA (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A method, apparatus, and article of manufacture for optimizing SQL queries in a relational database management system using a vectorized index. The vectorized index represents values in one or more of the columns of a particular table in the relational database. The vectorized index is comprised of a plurality of positions, wherein each of the positions comprises a linear array that represents a value for the specified columns in a corresponding row of the particular table in the relational database. To use the vectorized index, SQL operations are converted to a series of bit-vector operations on that index, where the result of the bit-vector operations is a list of row positions in the table.