greenplumn CDXLPhysicalExternalScan 代码
文件路径：/src/backend/gporca/libnaucrates/src/operators/CDXLPhysicalExternalScan.cpp
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2013 VMware, Inc. or its affiliates.
/
/ @filename:
/ CDXLPhysicalExternalScan.cpp
/
/ @doc:
/ Implementation of DXL physical external scan operator
/---------------------------------------------------------------------------
#include "naucrates/dxl/operators/CDXLPhysicalExternalScan.h"
#include "naucrates/dxl/operators/CDXLNode.h"
#include "naucrates/dxl/xml/CXMLSerializer.h"
using namespace gpos;
using namespace gpdxl;
/---------------------------------------------------------------------------
/ @function:
/ CDXLPhysicalExternalScan::CDXLPhysicalExternalScan
/
/ @doc:
/ Ctor
/
/---------------------------------------------------------------------------
CDXLPhysicalExternalScan::CDXLPhysicalExternalScan(CMemoryPool *mp)
: CDXLPhysicalTableScan(mp)
{
}
/---------------------------------------------------------------------------
/ @function:
/ CDXLPhysicalExternalScan::CDXLPhysicalExternalScan
/
/ @doc:
/ Ctor
/
/---------------------------------------------------------------------------
CDXLPhysicalExternalScan::CDXLPhysicalExternalScan(CMemoryPool *mp,
CDXLTableDescr *table_descr)
: CDXLPhysicalTableScan(mp, table_descr)
{
}
/---------------------------------------------------------------------------
/ @function:
/ CDXLPhysicalExternalScan::GetDXLOperator
/
/ @doc:
/ Operator type
/
/---------------------------------------------------------------------------
Edxlopid
CDXLPhysicalExternalScan::GetDXLOperator() const
{
return EdxlopPhysicalExternalScan;
}
/---------------------------------------------------------------------------
/ @function:
/ CDXLPhysicalExternalScan::GetOpNameStr
/
/ @doc:
/ Operator name
/
/---------------------------------------------------------------------------
const CWStringConst *
CDXLPhysicalExternalScan::GetOpNameStr() const
{
return CDXLTokens::GetDXLTokenStr(EdxltokenPhysicalExternalScan);
}
/ EOF
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