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IT34613: INCORRECT RESULTS WITH DB2_EXTENDED_OPTIMIZATION='MQTENFORCE REPLICATED'

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Incorrect result can be observed under following conditions:
    - multi-partitioned database
    - replicated Materialized Query Tables are used
    - registry variable in use:
    DB2_EXTENDED_OPTIMIZATION='MQTENFORCE REPLICATED'
    - query with EXISTS/IN subquery
    - one of tables in parent has no unique keys and is base table
    of replicated MQT
    

Local fix

  • Remove regvar or use alternative optguideline:
    <OPTGUIDELINES> <MQTENFORCE TYPE='REPLICATED'/>
    </OPTGUIDELINES>
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * DPF                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to Db2 11.5.5.1 or higher                            *
    ****************************************************************
    

Problem conclusion

  • Upgrade to Db2 11.5.5.1 or higher
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT34613

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    B50

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2020-10-20

  • Closed date

    2021-04-09

  • Last modified date

    2021-04-09

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • RB50 PSY

       UP

[{"Line of Business":{"code":"LOB10","label":"Data and AI"},"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SSEPGG","label":"DB2 for Linux- UNIX and Windows"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"11.5"}]

Document Information

Modified date:
31 August 2021