Optimized database appliance

Details Optimized database appliance Optimized database appliance

2006-01-13

2008-12-09

Al-Hashemi, Sana (Department: 2164)

Data processing: database and file management or data structures

Database design

Data structure types

C707S793000, C707S793000

Reexamination Certificate

active

07464106

ABSTRACT:
A system from processing database queries allows for cost and locale based distribution for execution of database queries. The database queries are executed on execution engines that provide flexible configuration and overlapping functionality. The system reduces various costs, including elapsed time, required to perform database queries. The system provides processing of a database query using a database catalog comprising database table locality information, record locality information and execution engine information. A query optimizer receives the query and accesses the database catalog to create a query execution plan comprising locality-based database operations. A central database operation processor providing a first execution engine executes the query execution plan by performing at least a portion of the locality-based database operations and distributing at least a portion of the locality-based database operations as a subplan. A second database operation processor providing a second execution engine executes the subplan received from the central database operation processor. At least one of the database operations can be executed on either the first execution engine or the second execution engine. A storage unit stores at least a portion of database tables and records. A data communications network connects the central database processor to the second database processor.

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