Branching optimization in a multi-database system
US8434075B1 · kind B1 · utility
12Cited by
10References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 15, 2009 |
| Grant date | Apr 30, 2013 |
| Priority date | — |
| Expiry date | May 12, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/24542
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Execution of a query is optimized. A plurality of plans for executing the query on a multi-database system are analyzed. A first plan having a first step and a second step is selected. The first step of the first plan is executed. The plan selection is re-evaluated before executing the second step of the first plan. A second plan of the plurality of plans for executing the query is executed to produce a result. The result is stored.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.