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. 08, 2020
Filed:
Sep. 28, 2018
Apple Inc., Cupertino, CA (US);
Murali Vemulapati, Fremont, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
Representative embodiments enable the management of index structures for data tables within a database. The techniques can include (1) receiving a request to perform an operation (e.g., read, write, etc.) on a row identifier (ID) associated with an index structure, (2) identifying a plurality of segments that corresponds to the index structure, where each segment stores a respective bitmap, (3) identifying, based on the row ID, a logical block ID of a logical block that encompasses the row ID, (4) utilizing the logical block ID to identify, among the plurality of segments, a subset of segments encompassed by the logical block, and (5) parsing each segment of the subset of segments to identify a respective bitmap that encompasses the row ID, and (6) in response to identifying the respective bitmap: performing an operation on a bitmap value that corresponds to the row ID.