Tracking changes in data
US10997152B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2020 |
| Grant date | May 4, 2021 |
| Priority date | — |
| Expiry date | Jul 31, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/278
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The subject technology executes a change on an existing micro-partition of a table, the executing of the change comprising generating a new micro-partition that embodies the change and deleting the existing micro-partition. The subject technology receives a request for a delta for the table between a first timestamp and a second timestamp. The subject technology responsively determines the delta based on a table history, the delta including information indicating at least one operation that was performed to at least one row of a set of rows of the table, without including information as to intermediate changes made to at least one row of the set of rows of the table between the first timestamp and the second timestamp, that facilitates a reduction in storage of historical versions of the set of rows of the table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.