Maintaining data stream history for generating materialized views
US11308079B2 · kind B2 · utility
4Cited by
4References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2019 |
| Grant date | Apr 19, 2022 |
| Priority date | — |
| Expiry date | Jan 14, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/24568
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Materialized views may be generated at a managed materialized view platform that accepts data streams as a source. When updating a materialized view with a data stream as a source, a stored portion of the stream is used to maintain a history of changes to be made. When a join operation needs to utilize the data stream source to determine an update to the materialized view, the data stream is preserved to complete the join and update the materialized view.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.