greenplumn CDXLPhysicalJoin 源码
greenplumn CDXLPhysicalJoin 代码
文件路径：/src/backend/gporca/libnaucrates/src/operators/CDXLPhysicalJoin.cpp
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2010 Greenplum, Inc.
//
// @filename:
// CDXLPhysicalJoin.cpp
//
// @doc:
// Implementation of the base class for DXL physical join operators
//---------------------------------------------------------------------------
#include "naucrates/dxl/operators/CDXLPhysicalJoin.h"
#include "naucrates/dxl/xml/CXMLSerializer.h"
using namespace gpos;
using namespace gpdxl;
//---------------------------------------------------------------------------
// @function:
// CDXLPhysicalJoin::CDXLPhysicalJoin
//
// @doc:
// Constructor
//
//---------------------------------------------------------------------------
CDXLPhysicalJoin::CDXLPhysicalJoin(CMemoryPool *mp, EdxlJoinType join_type)
: CDXLPhysical(mp), m_join_type(join_type)
{
}
//---------------------------------------------------------------------------
// @function:
// CDXLPhysicalJoin::GetJoinType
//
// @doc:
// Join type
//
//---------------------------------------------------------------------------
EdxlJoinType
CDXLPhysicalJoin::GetJoinType() const
{
return m_join_type;
}
//---------------------------------------------------------------------------
// @function:
// CDXLPhysicalJoin::GetJoinTypeNameStr
//
// @doc:
// Join type name
//
//---------------------------------------------------------------------------
const CWStringConst *
CDXLPhysicalJoin::GetJoinTypeNameStr() const
{
return CDXLOperator::GetJoinTypeNameStr(m_join_type);
}
// EOF
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