greenplumn CScalarDMLAction 源码
greenplumn CScalarDMLAction 代码
文件路径：/src/backend/gporca/libgpopt/src/operators/CScalarDMLAction.cpp
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2012 EMC Corp.
//
// @filename:
// CScalarDMLAction.cpp
//
// @doc:
// Implementation of scalar DML action operator
//---------------------------------------------------------------------------
#include "gpopt/operators/CScalarDMLAction.h"
#include "gpos/base.h"
#include "gpopt/base/CColRefSet.h"
#include "gpopt/base/CDrvdPropScalar.h"
#include "gpopt/base/COptCtxt.h"
#include "gpopt/operators/CExpressionHandle.h"
#include "naucrates/md/IMDTypeInt4.h"
using namespace gpopt;
using namespace gpmd;
//---------------------------------------------------------------------------
// @function:
// CScalarDMLAction::Matches
//
// @doc:
// Match function on operator level
//
//---------------------------------------------------------------------------
BOOL
CScalarDMLAction::Matches(COperator *pop) const
{
return pop->Eopid() == Eopid();
}
//---------------------------------------------------------------------------
// @function:
// CScalarDMLAction::MdidType
//
// @doc:
// Operator type
//
//---------------------------------------------------------------------------
IMDId *
CScalarDMLAction::MdidType() const
{
CMDAccessor *md_accessor = COptCtxt::PoctxtFromTLS()->Pmda();
return md_accessor->PtMDType<IMDTypeInt4>()->MDId();
}
// EOF
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