greenplumn CXformImplementTVFNoArgs 源码
greenplumn CXformImplementTVFNoArgs 代码
文件路径：/src/backend/gporca/libgpopt/include/gpopt/xforms/CXformImplementTVFNoArgs.h
//---------------------------------------------------------------------------
// Greenplum Database
// Copyright (C) 2012 EMC Corp.
//
// @filename:
// CXformImplementTVFNoArgs.h
//
// @doc:
// Implement logical TVF with a physical TVF with no arguments
//---------------------------------------------------------------------------
#ifndef GPOPT_CXformImplementTVFNoArgs_H
#define GPOPT_CXformImplementTVFNoArgs_H
#include "gpos/base.h"
#include "gpopt/xforms/CXformImplementTVF.h"
namespace gpopt
{
using namespace gpos;
//---------------------------------------------------------------------------
// @class:
// CXformImplementTVFNoArgs
//
// @doc:
// Implement TVF with no arguments
//
//---------------------------------------------------------------------------
class CXformImplementTVFNoArgs : public CXformImplementTVF
{
private:
public:
CXformImplementTVFNoArgs(const CXformImplementTVFNoArgs &) = delete;
// ctor
explicit CXformImplementTVFNoArgs(CMemoryPool *mp);
// dtor
~CXformImplementTVFNoArgs() override = default;
// ident accessors
EXformId
Exfid() const override
{
return ExfImplementTVFNoArgs;
}
// return a string for xform name
const CHAR *
SzId() const override
{
return "CXformImplementTVFNoArgs";
}
}; // class CXformImplementTVFNoArgs
} // namespace gpopt
#endif // !GPOPT_CXformImplementTVFNoArgs_H
// EOF
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