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Status Under review
Workspace Db2 for z/OS
Created by Guest
Created on Mar 4, 2025

Reorg Shrlevel CHANGE for Tables with Index on Expression Index

See this idea on ideas.ibm.com

Currently a REORG shrlevel CHANGE is not possible on UTS tablespaces which have an expression Index (Index on Expression) defined to them.

the message below gets issued:

DSNU076I DSNURFIT - KEYWORD=SHRLEVEL CHANGE INVALID FOR EXPRESSION-BASED INDEX TABLE SPACE

Applications, more and more, are wanting to store JSON in Db2 and query the key value pair in the JSON data. An Index on Expression can help with this access. To be able to offer these applications a true 24x7 solution will help with the takeup of storing JSON in Db2.

I appreciate that there may be technical challenges to do so but can IBM please look into this.



Needed By Quarter
  • Guest
    Reply
    |
    Mar 5, 2025

    No, I am wrong. It is if the JSON_VAL built-in function is used (Which is basically a LOB under the covers!) or a spatial index exists.

  • Guest
    Reply
    |
    Mar 5, 2025

    Isn't this a restriction for LOB columns only?