Asynchronous transfer of state information between continuous query plans
US8478743B2 · kind B2 · utility
17Cited by
1References
20Claims
0Family size
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Key dates
| Filing date | Dec 23, 2010 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Apr 25, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/24542
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Described herein are technologies pertaining to migrating state information of operators in a first continuous query plan to a second continuous query plan in an asynchronous manner, such that the first continuous query plan need not cease executing during the migrating of the state information. State information pertaining to stateful operators, such as join operators, is migrated from the first continuous query plan to the second continuous query plan by way of a transformation plan. State matching is utilized to generate the transformation plan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.