Method for localizing execution or subqueries and determining collocation of execution of subqueries in a parallel database
USRE37965E1 · kind E1 · reissue
8Cited by
16References
13Claims
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Key dates
| Filing date | Jun 2, 2000 |
| Grant date | Jan 7, 2003 |
| Priority date | — |
| Expiry date | Jun 2, 2020 |
Classification
- Technology area (CPC —)General
Abstract
A method for localizing execution of subqueries and determining collocation of execution of subqueries in a shared-nothing database. The concept of compatible partitioning is used to localize database operations in order to eliminate excess processes and communication, and thereby improve response time and throughput for the database management system. The method reduces the number of process by reducing the number of nodes involved in processing a query and by combining multiple processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.