2736960 - Intermittent st_server abort CTRL-C throw safeness issue at dfe_FPLOrdinal::TypeCheck – SAP IQ

• IQ multiplex secondary writer node intermittently throws a st_server.cxx abort with a signal 11 host throw at dfe_FPLOrdinal::TypeCheck

• This is a result of CTRL-C throw safeness issue, full stack from the throw point contains these calls…

hos_vector_noerror::ClearAndDestroy()

vp_Heap::~vp_Heap()

opt_BaseTableLeaf::~opt_BaseTableLeaf()

opt_QueryTree::~opt_QueryTree()

opt_QueryExp::~opt_QueryExp

hos_vector_noerror::ClearAndDestroy()

st_cursor::~st_cursor #Nvariant 1()

st_cursorIQtoSA::~st_cursorIQtoSA()

df_dmlcommand::~df_dmlcommand #Nvariant 1()

hos_ObjectStack::Throw()

Throw(const hos_exception&)

hos_attention::_Check

dfe_FPLOrdinal::TypeCheck

df_Evaluable::DepthFirstTypeCheck(df_Heap*)

• Prior to the aborting stack , these messages are also seen in the iqmsg file

GB vertical check - GroupBy column is not dfe_Column or is dfe_FPLOrdinal

Exception Thrown from dflib/dfe_BaseColumn.cxx

Err#: 0, ErrID: 519 (hos_attnexception); SQLCode: -299, SQLState: '57014', Severity: 16

Statement interrupted by user

• SAP IQ 16.1

NOTE: to date this has only been reported on Unix platforms and only in secondary nodes of a multiplex configuration.

sybase, crash, failed, sig11, CR814633, CR#814633, 814633, IQ161, mpx, ctrlc, cntrl-c, cntrlc, 'ctrl c', query, terminated, stacktrace, dfe_FPLOrdinal , KBA , BC-SYB-IQ , Sybase IQ , Problem