greenplumn CDXLScalarSubqueryAll 源码
greenplumn CDXLScalarSubqueryAll 代码
文件路径：/src/backend/gporca/libnaucrates/src/operators/CDXLScalarSubqueryAll.cpp
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2011 EMC, Corp.
//
// @filename:
// CDXLScalarSubqueryAll.cpp
//
// @doc:
// Implementation of subquery ALL
//---------------------------------------------------------------------------
#include "naucrates/dxl/operators/CDXLScalarSubqueryAll.h"
#include "gpos/string/CWStringDynamic.h"
#include "naucrates/dxl/operators/CDXLNode.h"
#include "naucrates/dxl/xml/CXMLSerializer.h"
using namespace gpos;
using namespace gpdxl;
using namespace gpmd;
//---------------------------------------------------------------------------
// @function:
// CDXLScalarSubqueryAll::CDXLScalarSubqueryAll
//
// @doc:
// Constructor
//
//---------------------------------------------------------------------------
CDXLScalarSubqueryAll::CDXLScalarSubqueryAll(CMemoryPool *mp,
IMDId *scalar_op_mdid,
CMDName *scalar_op_mdname,
ULONG colid)
: CDXLScalarSubqueryQuantified(mp, scalar_op_mdid, scalar_op_mdname, colid)
{
}
//---------------------------------------------------------------------------
// @function:
// CDXLScalarSubqueryAll::GetDXLOperator
//
// @doc:
// Operator type
//
//---------------------------------------------------------------------------
Edxlopid
CDXLScalarSubqueryAll::GetDXLOperator() const
{
return EdxlopScalarSubqueryAll;
}
//---------------------------------------------------------------------------
// @function:
// CDXLScalarSubqueryAll::GetOpNameStr
//
// @doc:
// Operator name
//
//---------------------------------------------------------------------------
const CWStringConst *
CDXLScalarSubqueryAll::GetOpNameStr() const
{
return CDXLTokens::GetDXLTokenStr(EdxltokenScalarSubqueryAll);
}
// EOF
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