Snapshot isolation support for distributed query processing in a shared disk database cluster
US8713046B2 · kind B2 · utility
14Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2011 |
| Grant date | Apr 29, 2014 |
| Priority date | — |
| Expiry date | Apr 22, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/2343
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
System, method, computer program product embodiments and combinations and sub-combinations thereof for snapshot isolation support for distributed query processing in a shared disk database cluster are provided. The embodiments include the forming of object identification data in a leader node of query execution in the shared disk database cluster. At least one fragment of the query execution is distributed to at least one worker node in the shared disk database cluster, and the object identification data is utilized for multiversion concurrency control during query execution by the leader node and at least one worker node.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.