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Status Needs more information
Workspace Db2 for z/OS
Created by Guest
Created on Jun 23, 2021

Eliminate IN list limitation of 32767.

Our organization has a major customer that has run up against this limitation. They have migrated from DB2 LUW and they did not have this limitation. They have IN lists that exceed 100k at times.

Needed By Yesterday (Let's go already!)
  • Admin
    Janet Figone
    Sep 7, 2021

    Hello Jerry and team. One of our Db2 development architects is reviewing this Aha! idea DB2AAZOS-I-209. Allowing more than 32767 items in an IN list for all cases will take several steps. Initially, we are assessing the effort to change the IN list limitation to a larger value when the query is offloaded to IDAA and the IN list items are literal constants only. From the SQL query in case TS005958455, it looks like all IN list items were literal constants, no parameter marker or host variable. We'd like to confirm that lifting the limit in this case is useful for your application. If so, we'd pick a new limit (larger than 32767) and would like that input from you as well.

    Additionally, this feature would need to be approved by our leadership team and likely worked as a future release enhancement. Please let us know if this fits. Thank you for your input.

  • Admin
    Dennis Lukas Mayer
    Jun 25, 2021

    This is a limitation of Db2 for z/OS and not of the Accelerator. I will move the Idea to the Db2 for z/OS Ideas list.