IC84292: -901 ERROR WHILE COMPILING QUERY HAVING MULTIPLE AGGREGATE DISTINCT

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You can track all active APARs for this component.

APAR status

  • Closed as user error.

Error description

  • Compiling a query may throw out -901 error "qnc was not found
    when expected" with the following call stack
    
    Compiler error stack for rc = -2144272209:
    sqlnn_cmpl[370]
    sqlnr_exe[1200]
    sqlnr_rcc[100]
    sqlnr_seq[100]
    sqlnr_comp[110]
    sqlnr_optprep_action[100]
    sqlnr_optprep[2240]
    sqlnr_compute_matchinfo[600]
    sqlnq_som::compute_matchin[230]
    sqlnq_mch::computeQclqncPP[900]
    
    when query contains multiple aggregate distinct on different
    columns, e.g. COUNT(DISTINCT COLX), COUNT(DISTINCT COLY) and the
    query referenced base table has dependent optimizer MQT. An
    optimizer MQT is such Materialized Query Table whose definition
    is a SELECT from one or multiple base table with only join or
    filtering predicate.
    

Local fix

  • Add all aggregate columns, i.e. COLX and COLY, to MQT select
    output list.
    

Problem summary

Problem conclusion

Temporary fix

Comments

  • The Problem fixed
    

APAR Information

  • APAR number

    IC84292

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    A10

  • Status

    CLOSED USE

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-06-13

  • Closed date

    2013-03-29

  • Last modified date

    2013-03-29

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

    IC79752

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

Fix information

Applicable component levels



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Document information


More support for:

DB2 for Linux, UNIX and Windows

Software version:

10.1

Reference #:

IC84292

Modified date:

2013-03-29

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