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IT29611: EXPLAIN_FROM_SECTION GENERATES EXPLAIN FILE WITH NEGATIVE VALUESWHEN NUMBER OF ROWS IS UPPER THAN INT LIMIT (2147483647)

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APAR status

  • Closed as fixed if next.

Error description

  • When we have a table with more rows than the INT limit (2 147
    483 647), the EXPLAIN_FROM_SECTION() function display negative
    values for the Estimated number of rows.
    The problem does not reproduce with SET CURRENT EXPLAIN MODE
    EXPLAIN and the card is displayed accurately in the explain file
    
    Example in the explain file:
    
    Access Plan:
    -----------
    
        -1,46431e+09
           TABLE
             Q
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All                                                          *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to next release 11.1.4.6                             *
    ****************************************************************
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    IT29611

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    B10

  • Status

    CLOSED FIN

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2019-07-03

  • Closed date

    2021-03-31

  • Last modified date

    2021-03-31

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

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

Fix information

Applicable component levels

[{"Line of Business":{"code":"LOB10","label":"Data and AI"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEPGG","label":"Db2 for Linux, UNIX and Windows"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"11.1"}]

Document Information

Modified date:
01 April 2021