Adaptively reordering joins during query execution
US7774336B2 · kind B2 · utility
29Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 10, 2007 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Sep 22, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/24
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method is disclosed for executing a predetermined query plan, the method comprising: executing a portion of the query plan; providing a reordered query plan; comparing ranking metrics for the query plans; and executing the query plan having the lower ranking metric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.