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2146551 - Dense_Rank() fails in dfo_OrderBy::ValidateLocalInternalConsistency - SAP IQ

Symptom

Query with  Dense_Rank() function generates a non-fatail stack trace at dflib/dfo_cOrderBy.cxx in the function dfo_OrderBy::ValidateLocalInternalConsistency.

In the query plan, there are tens of Leaf (Shadow) nodes.

Excerpt of the stack trace

********************************************************
**
**       Non-Fatal IQ Internal Error Detected
**       at dflib/dfo_cOrderBy.cxx:370  on thread 2590435072 (TID 23)
**       Error detected at DFO #22 Order By (Per-Work-Unit) (shadow 1 of #07)


dfo_OrderBy::ValidateLocalInternalConsistency
dfo::ValidateInternalConsistency
dfo::ValidateInternalConsistency
dfo::ValidateInternalConsistency
dfo::ValidateInternalConsistency
fo::ValidateInternalConsistency
dfo::ValidateInternalConsistency
dfo::ValidateInternalConsistency
dfo::ValidateInternalConsistency
dfo::ValidateInternalConsistency
dfo::ValidateInternalConsistency
dfo_Root::Prepare
db_dmlcommand::ExecuteDFOTree
db_InsertRoot::Execute


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Environment

IQ 16 SP 4 PL 10

Product

SAP IQ 16.0

Keywords

CR#781571 ; CR781571 ; 781571 ; dfo::ValidateInternalConsistency ; , KBA , BC-SYB-IQ , Sybase IQ , Problem

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