Query plan reformulation
US8688683B2 · kind B2 · utility
32Cited by
2References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2009 |
| Grant date | Apr 1, 2014 |
| Priority date | — |
| Expiry date | Apr 22, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06Q10/06393
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus, systems, and methods may operate to receive an original query plan, to transform the original query plan into an equivalent executable compact query plan, and to store the compact query plan on a machine readable device. Further activities may include computing maximal source sub-queries associated with the compact query plan, and computing semi-join reductions of the maximal source sub-queries to provide an executable derivative query plan, which may also be stored on a machine readable device. Additional apparatus, systems, and methods are described.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.