greenplumn CDXLIndexDescr 源码
greenplumn CDXLIndexDescr 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/dxl/operators/CDXLIndexDescr.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2012 EMC Corp.
//
// @filename:
// CDXLIndexDescr.h
//
// @doc:
// Class for representing index descriptors
//---------------------------------------------------------------------------
#ifndef GPDXL_CDXLIndexDescriptor_H
#define GPDXL_CDXLIndexDescriptor_H
#include "gpos/base.h"
#include "naucrates/md/CMDName.h"
#include "naucrates/md/IMDId.h"
namespace gpdxl
{
using namespace gpmd;
//---------------------------------------------------------------------------
// @class:
// CDXLIndexDescr
//
// @doc:
// Class for representing index descriptors in a DXL index scan node.
//
//---------------------------------------------------------------------------
class CDXLIndexDescr : public CRefCount
{
private:
// id and version information for the table
IMDId *m_mdid;
// index name
CMDName *m_mdname;
public:
CDXLIndexDescr(const CDXLIndexDescr &) = delete;
// ctor
CDXLIndexDescr(IMDId *mdid, CMDName *mdname);
// dtor
~CDXLIndexDescr() override;
// accessors
const CMDName *MdName() const;
IMDId *MDId() const;
// serialize the operator to a DXL document
void SerializeToDXL(CXMLSerializer *) const;
};
} // namespace gpdxl
#endif // !GPDXL_CDXLIndexDescriptor_H
// EOF
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