IC89663: ASSERTION FAILURE IN RDATAVALVCHAR -- QUERY INVOLVES A LARGE NUMBER OF TABLES WITH NESTED LOOP AND HASH JOINS

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APAR status

  • Closed as program error.

Error description

  • When the problem occurs, update statistics of the tables in the
    query may be running in another session.   Since this is a race
    condition problem, the problem occurs in rare circumstances.
    
    In the example stack below, the query is inside a stored
    procedure and returns varchar values.
    
    oninit :: rdatavalVchar
    oninit :: ev_colret
    oninit :: new_eval
    oninit :: sort_open
    oninit :: prepselect
    oninit :: open_cursor
    oninit :: ip_scurstart
    oninit :: ip_evalcursor
    oninit :: runproc
    oninit :: udrlm_spl_execute
    oninit :: udrlm_exec_routine
    oninit :: udr_execute
    oninit :: udr_spl_curnext
    oninit :: ip_curnext
    oninit :: ip_fetch
    oninit :: getrow
    oninit :: fetchrow
    oninit :: exfetch
    oninit :: sql_nfetch
    oninit :: sq_nfetch
    oninit :: sqmain
    oninit :: listen_verify
    oninit :: spawn_thread
    oninit :: startup
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * While executing procedure in another session update statics  *
    * on procedure/database, update statistics of the tables in    *
    * the query may be running in another session.  There can be   *
    * race                                                         *
    * condition and plan is reconstructed from two different       *
    * sessions plan. The problem occurs in rare circumstances.     *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See Error Description                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Update to IDS-11.70.xC8                                      *
    ****************************************************************
    

Problem conclusion

  • Problem Fixed In IDS-11.70.xC8
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC89663

  • Reported component name

    INFORMIX SERVER

  • Reported component ID

    5725A3900

  • Reported release

    B70

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-01-21

  • Closed date

    2014-02-26

  • Last modified date

    2014-02-26

  • 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

  • RB70 PSY

       UP



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Document information


More support for:

Informix Servers

Software version:

B70

Reference #:

IC89663

Modified date:

2014-02-26

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