greenplumn CAutoOptCtxt 代码
文件路径：/src/backend/gporca/libgpopt/include/gpopt/base/CAutoOptCtxt.h
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2009 Greenplum, Inc.
/
/ @filename:
/ CAutoOptCtxt.h
/
/ @doc:
/ Optimizer context object; contains all global objects pertaining to
/ one optimization
/---------------------------------------------------------------------------
#ifndef GPOPT_CAutoOptCtxt_H
#define GPOPT_CAutoOptCtxt_H
#include "gpos/base.h"
#include "gpopt/base/CColumnFactory.h"
#include "gpopt/base/COptCtxt.h"
#include "gpopt/mdcache/CMDAccessor.h"
namespace gpopt
{
using namespace gpos;
/ forward declaration
class CCostParams;
class ICostModel;
class COptimizerConfig;
class IConstExprEvaluator;
/---------------------------------------------------------------------------
/ @class:
/ CAutoOptCtxt
/
/ @doc:
/ Auto optimizer context object creates and installs optimizer context
/ for unittesting
/
/---------------------------------------------------------------------------
class CAutoOptCtxt
{
private:
public:
CAutoOptCtxt(CAutoOptCtxt &) = delete;
/ ctor
CAutoOptCtxt(CMemoryPool *mp, CMDAccessor *md_accessor,
IConstExprEvaluator *pceeval,
COptimizerConfig *optimizer_config);
/ ctor
CAutoOptCtxt(CMemoryPool *mp, CMDAccessor *md_accessor,
IConstExprEvaluator *pceeval, ICostModel *pcm);
/ dtor
~CAutoOptCtxt();
}; / class CAutoOptCtxt
} / namespace gpopt
#endif / !GPOPT_CAutoOptCtxt_H
/ EOF
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