IBM Data and AI Ideas Portal for Customers
Hide about this portal


This portal is to open public enhancement requests against products and services offered by the IBM Data & AI organization. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (https://ideas.ibm.com).


Shape the future of IBM!

We invite you to shape the future of IBM, including product roadmaps, by submitting ideas that matter to you the most. Here's how it works:


Search existing ideas

Start by searching and reviewing ideas and requests to enhance a product or service. Take a look at ideas others have posted, and add a comment, vote, or subscribe to updates on them if they matter to you. If you can't find what you are looking for,


Post your ideas

Post ideas and requests to enhance a product or service. Take a look at ideas others have posted and upvote them if they matter to you,

  1. Post an idea

  2. Upvote ideas that matter most to you

  3. Get feedback from the IBM team to refine your idea


Specific links you will want to bookmark for future use

Welcome to the IBM Ideas Portal (https://www.ibm.com/ideas) - Use this site to find out additional information and details about the IBM Ideas process and statuses.

IBM Unified Ideas Portal (https://ideas.ibm.com) - Use this site to view all of your ideas, create new ideas for any IBM product, or search for ideas across all of IBM.

ideasibm@us.ibm.com - Use this email to suggest enhancements to the Ideas process or request help from IBM for submitting your Ideas.

IBM Employees should enter Ideas at https://ideas.ibm.com


Add a new idea Subscribe
Status Not under consideration
Workspace Db2
Created by Guest
Created on May 7, 2019

RELATED IDEAS

db2caem should support 'SET CURRENT QUERY OPTIMIZATION = N'

See this idea on ideas.ibm.com

For diagnostic of Db2 performance problems the tool   db2caem   can be very helpful. Especially if a particular query plan should be compared using different optimization levels.

Using  db2caem  the optimization level must be specified by embedded optimization guidelines, the (often used) SET CURRENT QUERY OPTIMIZATION = N does not work. It raises the following error.

DBT7033E "db2caem": The db2caem utility encountered an error while processing the specified SQL statement. SQL statement: "set current query optimization = 0". Return code: "-1:4014".

It would be very helpful if   db2caem   would be able to handle 'SET CURRENT QUERY OPTIMIZATION = N' statements.

Needed by Date Sep 30, 2019
  • Guest
    Reply
    |     Jul 11, 2019

    CURRENT QUERY OPTIMIZATION, and any other special register settings that affect SQL statement compilation, can be provided using the compilation environment file that is specified with the db2caem -compenv option. That being said, I recognize that this is incredibly ugly and painful to use, so I think we should accept a general request to have db2caem accept a set of SQL statements to execute to set aspects of the compilation environment, or perform any other prerequisite processing, prior to the collection of actuals for the subject statement.

By clicking the "Post Comment" or "Submit Idea" button, you are agreeing to the IBM Ideas Portal Terms of Use.
Do not place IBM confidential, company confidential, or personal information into any field.