Supporting unified querying over autonomous unstructured and structured databases
US7949654B2 · kind B2 · utility
14Cited by
6References
12Claims
0Family size
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Key dates
| Filing date | Mar 31, 2008 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Jul 28, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/2471
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems and computer products perform cost estimate to determine an efficient approach to answer a query according to one of several unified query plans. One unified query plan involves querying an unstructured database, referencing a unified index, and probing a structured database based on matches discovered in the unified index. The results of the unstructured database query are used to lookup entries in a unified index associated with the structured database. Then the structured database is probed by querying only the subset of the structured database gleaned from the unstructured database query.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.