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PK81510: INCORROUT ON QUERY WITH RIDLIST SCAN AND DPSI DEFINED WITH PAIRWISE JOIN PATH

A fix is available

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • INCORROUT less rows returned
    DB2INCORR/K
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All DB2 users using data-partitioned         *
    *                 secondary index (DPSI).                      *
    ****************************************************************
    * PROBLEM DESCRIPTION: Incorrect row returns on query with     *
    *                      Ridlist scan and data-partitioned       *
    *                      secondary index (DPSI) define with      *
    *                      pairwise join.                          *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    During Ridlist scan using data-partitioned secondary index
    (DPSI), incorrect rows may return due to the following
    problems:
    
    1.The starting low key value is not reset to the original
      low key value.  This causes skipping of some initial keys in
      the next partition and less rows were returned.
    2.If there are predicates on the partition keys, partition
      pruning may not function correctly due to the error setting
      of the internal flag which cause Ridlist scan not to setup
      the partition bit map.
    

Problem conclusion

  • DB2 code was changed to set the low key to the original value
    instead of the last retrieved key and correctly setting the
    internal flag.
    

Temporary fix

  • *********
    * HIPER *
    *********
    

Comments

APAR Information

  • APAR number

    PK81510

  • Reported component name

    DB2 OS/390 & Z/

  • Reported component ID

    5740XYR00

  • Reported release

    910

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-02-27

  • Closed date

    2009-04-20

  • Last modified date

    2011-05-12

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

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

    UK45899

Modules/Macros

  •    DSNIRIDR DSNXOSJX
    

Fix information

  • Fixed component name

    DB2 OS/390 & Z/

  • Fixed component ID

    5740XYR00

Applicable component levels

  • R910 PSY UK45899

       UP09/05/06 P F905

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.



Document information

More support for: DB2 for z/OS

Software version: 910

Reference #: PK81510

Modified date: 12 May 2011


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