Parallel database query processing for non-uniform data...

Details Parallel database query processing for non-uniform data... Parallel database query processing for non-uniform data...

2005-06-21

2005-06-21

Kindred, Alford W. (Department: 2163)

Data processing: database and file management or data structures

Database design

Data structure types

C004S590000

Reexamination Certificate

active

06910032

ABSTRACT:
An apparatus, program product and method utilize a dynamically-populated query buffer to facilitate the handling of at least a portion of a database query in parallel. A query is implemented using at least first and second portions, where the second portion of the query is executed in parallel using a plurality of threads. The first portion of the query is executed to dynamically populate a query buffer with records from a data source, and the plurality of threads that execute the second portion of the query are specified to the query buffer so that the effective data source for the second portion of the query comprises the records that are dynamically populated into the query buffer.

REFERENCES:
patent: 5412804 (1995-05-01), Krishna
patent: 6064816 (2000-05-01), Parthasarathy et al.
patent: 6263328 (2001-07-01), Coden et al.
patent: 6289334 (2001-09-01), Reiner et al.
patent: 6314430 (2001-11-01), Chang
patent: 2002/0035559 (2002-03-01), Crowe et al.
patent: 2003/0187858 (2003-10-01), Kirk et al.
patent: 2003/0208489 (2003-11-01), Todd
G. Mitchell, “Extensible Query Processing in an Object-Oriented Database,” May 1993, Thesis, Department of Computer Science, Brown University, pp. 1-166.
IBM Patent Application filed on even date herewith by Carlson et al., “Runtime Query Optimization for Dynamically Selecting from Multiple Plans in a Query Based Upon Runtime-Evaluated Performance Criterion” (ROC920010235US1).
IBM Patent Application filed on even date herewith by Carlson et al., “Method for Efficient Processing of Multi-State Attributes” (ROC920010305US1).
IBM Patent Application filed on even date herewith by Carlson et al., “Object-Oriented Query Execution Data Structure” (ROC920020104US1).

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