Database query optimizer framework with dynamic strategy dispatch

An apparatus, program product and method utilize a query optimizer that relies upon a plurality of dynamically-dispatchable active strategy entities to generate an optimized execution plan for a database query. The plurality of active strategy entities form a optimizer framework from which the knowl...

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Bibliographic Details
Main Authors BESTGEN ROBERT JOSEPH, DIETEL JOHN DAVID, DOWNER ROBERT VICTOR, BOGER CURTIS
Format Patent
LanguageEnglish
Published 02.10.2003
Edition7
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Summary:An apparatus, program product and method utilize a query optimizer that relies upon a plurality of dynamically-dispatchable active strategy entities to generate an optimized execution plan for a database query. The plurality of active strategy entities form a optimizer framework from which the knowledge available to the optimizer, and the intelligence utilized by the optimizer in generating execution plans, may be represented in a structured, flexible, extensible and easily-modifiable manner.
Bibliography:Application Number: US20020113174