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Status Not under consideration
Workspace Db2 for z/OS
Created by Guest
Created on Feb 8, 2019

RELATED IDEAS

Data-partitioned secondary index (dpsi) support for row change timestamp columns

To identify which rows of a table have changed in specified time interval we are using timestamp columns. The values of these columns are set via the "GENERATED BY DEFAULT FOR EACH ROW ON UPDATE AS ROW CHANGE TIMESTAMP" clause.

To optimize query performance on these tables we want to create indexes containing the described timestamp column. Because the underlying table is partitioned and a row change timestamp column can not be specified in the create index together with a partition by range clause we have to create non-partitioning secondary indexes (npsi). Also we want to minimizing the use of npsis because of their impact on maintenance and the change management of tables.

We need partitioned indexes to support row change timestamp columns.

  • Admin
    Janet Figone
    Reply
    |     Jan 2, 2023

    Dear Fabian, Thank you for submitting this enhancement request. The Db2 for z/OS team re-reviewed it and see it as a desirable enhancement to Db2, but they do not expect to deliver it in the near future. As such this idea is being marked as currently not under consideration.

    Please do continue to submit enhancement requests to us as we review each and every one to assess its value and improvement of the Db2 for z/OS product for our customers.

    Sincerely,

    The Db2 for z/OS Team

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