//---------------------------------------------------------------------------
// @function:
// CScalarOp::PmdidType
//
// @doc:
// Expression type
//
//---------------------------------------------------------------------------
IMDId *
CScalarOp::PmdidType() const
{
if (NULL != m_pmdidReturnType)
{
return m_pmdidReturnType;
}
CMDAccessor *pmda = COptCtxt::PoctxtFromTLS()->Pmda();
return pmda->Pmdscop(m_pmdidOp)->PmdidTypeResult();
}
//---------------------------------------------------------------------------
// @function:
// CStatsPredUtils::Estatscmpt
//
// @doc:
// For the purpose of statistics computation, what is the comparison
// type of an operator. Note that this has different, looser semantics
// than CUtils::Ecmpt
//
//---------------------------------------------------------------------------
CStatsPred::EStatsCmpType
CStatsPredUtils::Estatscmpt
(
IMDId *pmdid
)
{
CMDAccessor *pmda = COptCtxt::PoctxtFromTLS()->Pmda();
const IMDScalarOp *pmdscop = pmda->Pmdscop(pmdid);
// Simply go by operator name.
// If the name of the operator is "<", then it is a LessThan etc.
const CWStringConst *pstrOpName = pmdscop->Mdname().Pstr();
return Estatscmpt(pstrOpName);
}