IBM Data and AI Ideas Portal for Customers


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Status Not under consideration
Workspace Db2 Analytics Accelerator for z/OS
Created by Guest
Created on Jan 18, 2019

RELATED IDEAS

Allow for unique constraint definitions on accelerated tables

We ask to implement an option to allow for unique constraint definition at accelerator level ; this would apply both to  Accelerator Only Table ( AOT )  and to shadow-table loaded with IDAA_ONLY option available with Accelerator Loader.   DB2® uses unique indexes to ensure that no identical key values are stored in a table ; this functionality is not available in case of Accelerator Only Table and of shadow-table loaded with IDAA_ONLY option available with Accelerator Loader . For this kind of tables the risk of not having unique constraint at accelerator level would be to get  incorrect results for accelerated queries . As a consequence, some business applications could not benefit from acceleration slowing IBM DB2 Analytics Accelerator adoption.
 

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