Database with tombstone access
US11853318B1 · kind B1 · utility
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20Claims
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Key dates
| Filing date | Jun 23, 2020 |
| Grant date | Dec 26, 2023 |
| Priority date | — |
| Expiry date | Jun 23, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/275
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.