IC84184: DB2 MAY ABEND WHEN THERE ARE MULTIPLE REPLICATED MQT AND FORCE_REPLICATED_MQT_MERGE IS SET

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • When the following conditions are all met,  compiling a query or
    modifying statement may trap with stack:
    
    sqlnq_qtboprparent::op
    sqlnq_mch::is_maximal
    sqlnq_som::compute_matchinfo_opt
    sqlnr_compute_matchinfo
    sqlnr_optprep
    sqlnr_optprep_action
    
    
    (1) There are at least two replicated MQT (Materialized Query
    Table) and at least one non-replicated optimizer MQT or
    statistical view. An optimizer MQT is such MQT whose definition
    is simply "SELECT <expression list> FROM <one or more base
    tables> WHERE <predicates>".
    (2) Registry variable DB2_EXTENDED_OPTIMIZATION includes flag
    FORCE_REPLICATED_MQT_MERGE.
    (3) The query statement itself contains multiple subqueries, or
    the modifying statement's target table has multiple enforced
    checking constraint defined.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * N/A                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to DB2 Version 10 Fix Pack 1.                        *
    ****************************************************************
    

Problem conclusion

  • Fixed on DB2 Version 10 Fix Pack 1.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC84184

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    A10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-06-13

  • Closed date

    2012-12-28

  • Last modified date

    2012-12-28

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

    IC79654

  • 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

  • RA10 PSN

       UP



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Document information


More support for:

DB2 for Linux, UNIX and Windows

Software version:

10.1

Reference #:

IC84184

Modified date:

2012-12-28

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