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Volume 10, Number 2 - Fall 2000
 

Merge Indexes To Provide Parallel Processing Aids
 

Ever wanted to merge two or more indexes quickly without a quick and dirty AID program? Now you can in the Unibase Environment. Users have always had their favorite little AID program which merges indexes. Most were not wild card with selective choice driven and easily used. They were slow because the data files in the index were accessed as well as the various indexes.

Starting with one of these little AID programs as a model, the development team came up with a mergeix command line/executable program that allows up to 50 indexes to be merged. Very little checking is done on the indexes so some very weird merges can be accomplished. Speed is obtained by not looking at the base data files contained in the index.

In the MUI (Menu User Interface) of Unibase, the new Merge Indexes is under Advanced Processing, Index Functions, "Merge Indexes."

Users can now index a large file by indexing different portions of the file simultaneously on different workstations, then merging into a final index at the end. Some users will use this as part of their data mining tools.