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Intelligent-compilation-of-procedural-functions-for-query-processing-systems

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Intelligent compilation of procedural functions for query processing systems

Details

Inventors: Cochrane, Roberta Jo; Pirahesh, Mir Hamid; Rielau , Serge Philippe; Sidle, Richard Sefton; Urhan, Tolga;
Assignee: International Business Machines Corporation (Armonk, NY)
Primary Examiner: Lintz; Paul R.
Assistant Examiner: Fleurantin; Jean Bolte
Attorney, Agent or Firm: Pretty, Schroeder & Poplawski, P.C.

A method, apparatus, and article of manufacture for an intelligent compiler. A query is executed in a computer to retrieve data from a relational database stored on a data storage device. The query contains a procedural function. The query is compiled to generate an internal representation of the procedural function. Then, the execution of the procedural function is optimized using the generated internal representation.

DETAILED DESCRIPTION To overcome the limitations in the prior art described above, and to overcome other limitations that will become apparent upon reading and understanding the present specification, the present invention discloses a method, apparatus, and article of manufacture for an intelligent compiler.
According to the present invention, a query is executed in a computer to retrieve data from a relational database stored on a data storage device.
The query contains a procedural function.
The query is compiled to generate an internal representation of the procedural function.
Then, the execution of the procedural function is optimized using the generated internal representation.
An object of the present invention is to provide optimized execution of procedural functions.
Another object of this invention is to compile procedural functions to generate an internal representation that is used in optimizing the execution of the query.

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