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. 26, 2023
Filed:
Jun. 23, 2020
Applicant:
Amazon Technologies, Inc., Seattle, WA (US);
Inventors:
Hao He, Seattle, WA (US);
Akhilesh Mritunjai, Seattle, WA (US);
Assignee:
Amazon Technologies, Inc., Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 16/27 (2019.01); G06F 16/23 (2019.01);
U.S. Cl.
CPC ...
G06F 16/27 (2019.01); G06F 16/2365 (2019.01);
Abstract
A data store maintains a collection of data using a log-based storage structure. In response to a request to delete an item from the collection, the database management system adds a tombstone entry to the log-based storage structure, with additional metadata associated with the tombstone. Access to the tombstone metadata is provided to a client of the data store. The tombstone is deleted from the log-based storage structure after expiry of a time-to-live period.