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2071664 - Query Error "Can not evaluate expression" - SAP IQ

Symptom

On version IQ15.4 & IQ16, some various queries are hitting an ERROR , " dfo.cxx:#### … Can not evaluate expression".They have different causing factors, though  error message looks similar. Stack trace looks very similar too.

  • Stack trace include the following functions:

         ..df_Exception..df_ErrorCode ...
         ..df_Exception::ThrowException ...
         ..dfo::ValidateOutputVectors  ...

  • Error messages:   
    • Example-1 :    
      ** Non-Fatal IQ Internal Error Detected
      ** at dfo.cxx:11505  on thread 27500 (TID 28)
      ** Internal error at GROUP BY node: #03  Can not evaluate expression: A.EXEC_BAL`(3)
      ** Error detected at DFO #03 Group By (Sort) 
    • Example-2 : 
      ** Non-Fatal IQ Internal Error Detected                 
      ** at dfo.cxx:11439  on thread 22360 (TID 28)          
      ** Internal error at node: #09  Can not evaluate expression: CASE  WHEN
      ** Error detected at DFO #09 Right Outer Join (Hash PushDown)     
    • Example-3 : 
      ** Non-Fatal IQ Internal Error Detected
      ** at dfo.cxx:11257  on thread 27757 (TID 4)
      ** Internal error at node: #09  Can not evaluate expression: T2.t1_aa4
      ** Error detected at DFO #09 Union All

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Environment

  • SAP IQ 15.4
  • SAP IQ 16.0

Product

SAP IQ 16.0 ; SAP Sybase IQ 15.4

Keywords

dfo.cxx, error -1001043, CR767912, 767912, CR768755, 768755, CR768832, 768832, CR769521, 769521, CR769521, 769521 , KBA , BC-SYB-IQ , Sybase IQ , Bug Filed

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