greenplumn CDXLPhysical 源码
greenplumn CDXLPhysical 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/dxl/operators/CDXLPhysical.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2010 Greenplum, Inc.
//
// @filename:
// CDXLPhysical.h
//
// @doc:
// Base class for DXL physical operators.
//---------------------------------------------------------------------------
#ifndef GPDXL_CDXLPhysical_H
#define GPDXL_CDXLPhysical_H
#include "gpos/base.h"
#include "naucrates/dxl/operators/CDXLOperator.h"
#include "naucrates/dxl/operators/CDXLPhysicalProperties.h"
namespace gpdxl
{
using namespace gpos;
// fwd decl
class CXMLSerializer;
//---------------------------------------------------------------------------
// @class:
// CDXLPhysical
//
// @doc:
// Base class the DXL physical operators
//
//---------------------------------------------------------------------------
class CDXLPhysical : public CDXLOperator
{
private:
public:
CDXLPhysical(const CDXLPhysical &) = delete;
// ctor/dtor
explicit CDXLPhysical(CMemoryPool *mp);
~CDXLPhysical() override;
// Get operator type
Edxloptype GetDXLOperatorType() const override;
#ifdef GPOS_DEBUG
// checks whether the operator has valid structure, i.e. number and
// types of child nodes
void AssertValid(const CDXLNode *, BOOL validate_children) const override;
#endif // GPOS_DEBUG
};
} // namespace gpdxl
#endif // !GPDXL_CDXLPhysical_H
// EOF
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