greenplumn CCTEConfig 代码
文件路径：/src/backend/gporca/libgpopt/include/gpopt/engine/CCTEConfig.h
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2013 EMC Corp.
/
/ @filename:
/ CCTEConfig.h
/
/ @doc:
/ CTE configurations
/---------------------------------------------------------------------------
#ifndef GPOPT_CCTEConfig_H
#define GPOPT_CCTEConfig_H
#include "gpos/base.h"
#include "gpos/common/CDouble.h"
#include "gpos/common/CRefCount.h"
#include "gpos/memory/CMemoryPool.h"
namespace gpopt
{
using namespace gpos;
/---------------------------------------------------------------------------
/ @class:
/ CCTEConfig
/
/ @doc:
/ CTE configurations
/
/---------------------------------------------------------------------------
class CCTEConfig : public CRefCount
{
private:
/ CTE inlining cut-off
ULONG m_ulCTEInliningCutoff;
public:
CCTEConfig(const CCTEConfig &) = delete;
/ ctor
CCTEConfig(ULONG cte_inlining_cut_off)
: m_ulCTEInliningCutoff(cte_inlining_cut_off)
{
}
/ CTE inlining cut-off
ULONG
UlCTEInliningCutoff() const
{
return m_ulCTEInliningCutoff;
}
/ generate default optimizer configurations
static CCTEConfig *
PcteconfDefault(CMemoryPool *mp)
{
return GPOS_NEW(mp) CCTEConfig(0 /* cte_inlining_cut_off */);
}
}; / class CCTEConfig
} / namespace gpopt
#endif / !GPOPT_CCTEConfig_H
/ EOF