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Status Not under consideration
Workspace Db2 for z/OS
Created by Guest
Created on Jun 29, 2020

RELATED IDEAS

Optimization access paths currently used for SELECTs should also apply to UPDATEs (and DELETEs)

Currently, as I write a SELECT query with a correlated Sub-select (and no other predicates), I see that the optimization for that query uses a non-correlated sub-select and the query runs very fast. But, if I use exactly the same predicate, but write the query as an UPDATE, the optimizer does not enhance the query performance in the same manner that was done for the equivalent SELECT query. So, I have to re-write the query myself. I would like to have the fast performance (logic) that was applied to the SELECT call to also be applied to the UPDATE call.

Needed by Date Jun 1, 2021
  • Admin
    Janet Figone
    Reply
    |     Dec 30, 2020

    Thank you for submitting this Db2 for z/OS enhancement request. We have reviewed this request and believe it may a good candidate for the Db2 for z/OS product. However, it is not in our current roadmap and we are unable to deliver it within the next 24 months. Therefore, unfortunately, we will not be implementing this Idea.

    We appreciate your input to the Db2 for z/OS development team. We also hope that you will continue to submit ideas for improvements as customer feedback is a key component to shaping the future direction of Db2 for z/OS.

    Sincerely,

    Db2 for z/OS Team

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