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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