//---------------------------------------------------------------------------
// @function:
// CColumnFactory::PcrCopy
//
// @doc:
// Create a copy of the given colref
//
//---------------------------------------------------------------------------
CColRef *
CColumnFactory::PcrCopy
(
const CColRef* colref
)
{
CName name(colref->Name());
if (CColRef::EcrtComputed == colref->Ecrt())
{
return PcrCreate(colref->RetrieveType(), colref->TypeModifier(), name);
}
GPOS_ASSERT(CColRef::EcrtTable == colref->Ecrt());
ULONG id = m_aul.Incr();
CColRefTable *pcrTable = CColRefTable::PcrConvert(const_cast<CColRef*>(colref));
return PcrCreate
(
colref->RetrieveType(),
colref->TypeModifier(),
pcrTable->AttrNum(),
pcrTable->IsNullable(),
id,
name,
pcrTable->UlSourceOpId(),
pcrTable->Width()
);
}
//---------------------------------------------------------------------------
// @function:
// CColumnFactory::PcrCopy
//
// @doc:
// Create a copy of the given colref
//
//---------------------------------------------------------------------------
CColRef *
CColumnFactory::PcrCopy
(
const CColRef* pcr
)
{
CName name(pcr->Name());
if (CColRef::EcrtComputed == pcr->Ecrt())
{
return PcrCreate(pcr->Pmdtype(), name);
}
GPOS_ASSERT(CColRef::EcrtTable == pcr->Ecrt());
ULONG ulId = m_aul.TIncr();
CColRefTable *pcrTable = CColRefTable::PcrConvert(const_cast<CColRef*>(pcr));
return PcrCreate
(
pcr->Pmdtype(),
pcrTable->IAttno(),
pcrTable->FNullable(),
ulId,
name,
pcrTable->UlSourceOpId(),
pcrTable->UlWidth()
);
}