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JR34364: DEFAULT TRIM STRING TRANSFORM FUNCTION GIVES DIFFERENT RESULTS WITH IS 8.1 WHEN COMPARED TO DS 7.5.2

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APAR status

  • Closed as program error.

Error description

  • Default Trim string function behaves differently with IS 8.1 NLS
    when compared to DS 7.5.2.
    

Local fix

  • To change the coding to Trim( fld, " ", "R" ).
    
    This fix is included in 8.0.1 fixpack 3
    

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    All environments, users of IS 8.0.1 and IS 8.1
    ****************************************************************
    PROBLEM DESCRIPTION:
    The PX transform trimc_string and u_trimc_string functions were
    extensively modified for Hawk (IS 8.0) to correct discrepancies
    with the DataStage documentation (and the Server implementation
    of Trim) with respect to some nuances of whitespace handling.
    However, at least one customer (JP Morgan Chase) relied on the
    old 7.5x behavior of these functions.
    ****************************************************************
    RECOMMENDATION:
    Customers that need the trimc_string and u_trimc_string
    functions to treat whitespace as they did in PX 7.5x, should
    define the environment variable
    APT_TRIM_STRING_WHITESPACE_COMPATIBLE either on a project-wide
    or per-job basis.
    This fix is included in 81FP1
    ****************************************************************
    

Problem conclusion

  • Added support for a new environment variable
    APT_TRIM_STRING_WHITESPACE_COMPATIBLE. When this variable is
    defined, the PX transform trimc_string and u_trimc_string
    functions will handle whitespace in the same way as their PX
    7.5x counterparts.  When the environment variable is not
    defined(default), it will handle whitespace in accordance with
    the DataStage documentation.
    

Temporary fix

Comments

APAR Information

  • APAR number

    JR34364

  • Reported component name

    WIS DATASTAGE

  • Reported component ID

    5724Q36DS

  • Reported release

    810

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-09-23

  • Closed date

    2010-01-14

  • Last modified date

    2010-12-09

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

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

Fix information

  • Fixed component name

    WIS DATASTAGE

  • Fixed component ID

    5724Q36DS

Applicable component levels

  • R810 PSN

       UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSVSEF","label":"InfoSphere DataStage"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.1","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
11 October 2021