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IT09099: WRONG RESULTS FOR SQL ANSI JOIN QUERY POSSIBLE WHEN IFX_FOLDVIEWIS ACTIVE

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APAR status

  • Closed as program error.

Error description

  • You may observe wrong results when IFX_FOLDVIEW is active (set
    to 1 in the onconfig file).
    
    In the reported situation we have a CASE expression within the
    view that is being referenced in the SELECT statement.
    
    Depending on the query path chosen then an excess row was
    observed which does not match the filter.
    
    The SELECT statement is using ANSI JOIN and has predicate
    filters.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Users of 12.10.xC1 through 12.10.xC5.                        *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * A query may return incorrect results under the following     *
    * conditions:                                                  *
    *   - a view containing multiple tables, joined together with  *
    * ANSI INNER JOIN or Informix inner join                       *
    *   - a query with ANSI OUTER JOIN where the view is used as   *
    * dominant table, and one other table as subservient table     *
    *   - the view definition has an OR-clause predicate which     *
    * references more than 2 tables                                *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Update to IBM Informix Server 12.10.xC6                      *
    ****************************************************************
    

Problem conclusion

  • Problem Fixed In IBM Informix Server 12.10.xC6
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT09099

  • Reported component name

    INFORMIX SERVER

  • Reported component ID

    5725A3900

  • Reported release

    C10

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2015-05-26

  • Closed date

    2015-12-30

  • Last modified date

    2024-11-10

  • 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

    INFORMIX SERVER

  • Fixed component ID

    5725A3900

Applicable component levels

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSGU8G","label":"Informix Servers"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"C10","Line of Business":{"code":"LOB10","label":"Data and AI"}}]

Document Information

Modified date:
12 November 2024