Database query in a share-nothing database architecture
US9146959B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 13, 2013 |
| Grant date | Sep 29, 2015 |
| Priority date | — |
| Expiry date | Mar 26, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/24542
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Data query in a share-nothing database includes obtaining a query request and generating an optimized access plan with respect to the query request. The query request relates to external data stored in an external data source and contains a definition for expected distribution of the external data. The data query also includes obtaining data distribution information related to the expected distribution based on the optimized access plan, transmitting the data distribution information to the external data source so that the external data source splits and returns the external data in accordance with the data distribution information, and executing query-related processing of the split external data in accordance with the optimized access plan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.