An improved system for database query processing by means of "query decomposition" intercepts database queries prior to processing by a database management system ("DBMS"). The system decomposes at least selected queries to generate multiple subqueries for application, in parallel,...http://www.google.ca/patents/US5742806?utm_source=gb-gplus-sharePatent US5742806 - Apparatus and method for decomposing database queries for database management system including multiprocessor digital data processing system 
