3194519 - Stack trace on dfo::ValidateOutputVectors when executing some complex query - SAP IQ

A complex query continues to hit in the following stack trace:

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*******************************************************
**
** Non-Fatal IQ Internal Error Detected
** at dflib/dfo.cxx:14974 on thread UUUUUUUU (TID NN)
** Internal error at node: #04 Can not evaluate expression: HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
** Error detected at DFO #04 Left Outer Join (Hash)
....
....
** Command text:
<<complex query> >
...
...
dfo::ValidateOutputVectors
dfo::ValidateOutputVectors
dfo::ValidateOutputVectors
dfo::ValidateOutputVectors
dfo::ValidateOutputVectors
dfo::ValidateOutputVectors
dfo::ValidateOutputVectors
dfo::ValidateOutputVectors
dfo::ValidateOutputVectors
dfo_Root::Prepare
db_dmlcommand::ExecuteDFOTree
db_InsertRoot::Execute
st_command::DoCmdThroughResourceGate
st_iqdml::Insert
UIQDML_Insert
......
......
****************** End of STACKTRACE ******************
**
** End of stack trace from Non-Fatal IQ Internal Error dflib/dfo.cxx:14974
**
********************************************************
Exception Thrown from dflib/dfo.cxx:14974, Err# 1057, tid 3 origtid 3
O/S Err#: 0, ErrID: 9216 (df_Exception); SQLCode: -1001043, SQLState: 'QFA39', Severity: 14
[PPPPP]: Report to SAP IQ Support. Query 'Internal error at node: #04 Can not evaluate expression: HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH

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SAP IQ 16.1 SP04 PL12

"Can not evaluate", "dfo::ValidateOutputVectors", 826473 CR826473, ,825737, , KBA , BC-SYB-IQ , Sybase IQ , Bug Filed