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IC98683: ROWS MISSING WHEN LARGE RESULT SET IS PRODUCED BY NULLS FIRST SORT ON INTEGER OR BIGINT

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • If sort is done with DESC (NULLS FIRST) on INT or BIGINT data
    types and the result set is large, then it is possible that the
    query does not return part of the rows back to the user.
    

Local fix

  • Do not use sort with DESC (NULLS FIRST) on INT or BIGINT data
    types.  Or, if you must use such a sort, then use the following:
    db2set DB2_TCG_DEFAULT_OPTIONS="set num_page_fast_int_sort 0"
    Then recycle the instance using db2stop followed by db2start and
    recompile any static sections that use sort with DESC (NULLS
    FIRST) on INT or BIGINT data types.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All users                                                    *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to DB2 version 10.1.0.4.                             *
    ****************************************************************
    

Problem conclusion

  • The problem is first fixed in DB2 version 10.1.0.4.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC98683

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    A10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2014-01-13

  • Closed date

    2014-07-18

  • Last modified date

    2014-07-18

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

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

    IT01020

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • RA10 PSN

       UP

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"10.1","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
18 July 2014