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PK97872: INCORROUT OCCURS ON QUERY WITH RANK / DENSE_RANK FUNCTIONS AND GROUP BY EXPRESSION

A fix is available

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APAR status

  • Closed as program error.

Error description

  • Incorrect out may occur when query contains RANKing functions
    and GROUP by expression.
    .
    Additional keyword: DB2INCORR/K
    

Local fix

  • N/Q
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All DB2 R910 users using RANK/DENSE_RANK/    *
    *                 ROW_NUMBER.                                  *
    ****************************************************************
    * PROBLEM DESCRIPTION: Incorrout may occur when query contains *
    *                      RANK/DENSE_RANK/ROW_NUMBER and          *
    *                      group by expression(s).                 *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    Incorrout may occur when query contains RANK/DENSE_RANK/
    ROW_NUMBER and group by expression(s).
    Following is an example of such failing scenario:
    SELECT C1,
           sum(C2),
           substr(C3,1,5),
           dense_rank() over (partition by C1
                              ORDER BY sum(C2) desc) as ORD
      FROM T1
     WHERE C4 = 22
     GROUP BY C1, substr(C3,1,5)
    

Problem conclusion

  • DB2 is fixed to process group by expression correctly when
    query contains RANK/DENSE_RANK/ROW_NUMBER.
    
    Additional keywords: SQLGROUPBY SQLRANK SQLDENSERANK
                         SQLROWNUMBER SQLINCORR
    

Temporary fix

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

Comments

APAR Information

  • APAR number

    PK97872

  • 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

    2009-10-05

  • Closed date

    2009-12-14

  • Last modified date

    2011-05-10

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

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

    UK52841

Modules/Macros

  • DSNXOWIN
    

Fix information

  • Fixed component name

    DB2 OS/390 & Z/

  • Fixed component ID

    5740XYR00

Applicable component levels

  • R910 PSY UK52841

       UP10/01/06 P F001

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.

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Document Information

Modified date:
10 May 2011