greenplumn CDXLPhysicalJoin 源码
greenplumn CDXLPhysicalJoin 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/dxl/operators/CDXLPhysicalJoin.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2010 Greenplum, Inc.
//
// @filename:
// CDXLPhysicalJoin.h
//
// @doc:
// Base class for representing physical DXL join operators.
//---------------------------------------------------------------------------
#ifndef GPDXL_CDXLPhysicalJoin_H
#define GPDXL_CDXLPhysicalJoin_H
#include "gpos/base.h"
#include "naucrates/dxl/operators/CDXLPhysical.h"
namespace gpdxl
{
//---------------------------------------------------------------------------
// @class:
// CDXLPhysicalJoin
//
// @doc:
// Base class for representing physical DXL join operators
//
//---------------------------------------------------------------------------
class CDXLPhysicalJoin : public CDXLPhysical
{
private:
// join type (inner, outer, ...)
EdxlJoinType m_join_type;
public:
CDXLPhysicalJoin(const CDXLPhysicalJoin &) = delete;
// ctor
CDXLPhysicalJoin(CMemoryPool *mp, EdxlJoinType join_type);
// join type
EdxlJoinType GetJoinType() const;
const CWStringConst *GetJoinTypeNameStr() const;
};
} // namespace gpdxl
#endif // !GPDXL_CDXLPhysicalJoin_H
// EOF
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