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LI73374: INSTANCE MAY TRAP WITH SEGMENTATION FAULT WHILE EVALUATING AN MQT FOR POSSIBLE USE.

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APAR status

  • Closed as program error.

Error description

  • The instance may trap with a segmentation fault when evaluating
    MQTs during query compilation.
    
    The process stack may include the following functions:
      sqlno_prop_resolve_col
      sqlno_get_one_mgjn_col_stats
      sqlno_get_mgjn_col_stats
      sqlno_cost_mgjn
      sqlno_prop_mgjn
      sqlno_globals
      sqlno_crule_mgjn
      sqlno_crule_join_choices
    

Local fix

  • The problem arises when qualifying a column from the MQT as
    matchable due to the default value specified in the base table.
    
    A work around may include adding columns to the MQT definition.
    

Problem summary

  • The instance may trap with a segmentation fault when evaluating
    MQTs during query compilation.
    
    The process stack may include the following functions:
      sqlno_prop_resolve_col
      sqlno_get_one_mgjn_col_stats
      sqlno_get_mgjn_col_stats
      sqlno_cost_mgjn
      sqlno_prop_mgjn
      sqlno_globals
      sqlno_crule_mgjn
      sqlno_crule_join_choices
    

Problem conclusion

  • First fixed in DB2 UDB Version 8.2, FixPak 17 (s080813).
    

Temporary fix

  • The problem arises when qualifying a column from the MQT as
    matchable due to the default value specified in the base table.
    
    A work around may include adding columns to the MQT definition.
    

Comments

APAR Information

  • APAR number

    LI73374

  • Reported component name

    DB2 UDE ESE LIN

  • Reported component ID

    5765F4104

  • Reported release

    820

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2008-04-22

  • Closed date

    2008-09-30

  • Last modified date

    2008-09-30

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

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

    LI73380 LI73381

Fix information

  • Fixed component name

    DB2 UDE ESE LIN

  • Fixed component ID

    5765F4104

Applicable component levels

  • R810 PSN

       UP

  • R820 PSN

       UP

  • R910 PSN

       UP

  • R950 PSN

       UP

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Document Information

Modified date:
30 September 2008