greenplumn CLimitStatsProcessor 代码
文件路径：/src/backend/gporca/libnaucrates/include/naucrates/statistics/CLimitStatsProcessor.h
/---------------------------------------------------------------------------
/ Greenplum Database
/ Copyright (C) 2018 VMware, Inc. or its affiliates.
/
/ @filename:
/ CLimitStatsProcessor.h
/
/ @doc:
/ Compute statistics for limit operation
/---------------------------------------------------------------------------
#ifndef GPNAUCRATES_CLimitStatsProcessor_H
#define GPNAUCRATES_CLimitStatsProcessor_H
#include "gpopt/optimizer/COptimizerConfig.h"
#include "naucrates/statistics/CStatisticsUtils.h"
namespace gpnaucrates
{
using namespace gpos;
class CLimitStatsProcessor
{
public:
/ limit
static CStatistics *CalcLimitStats(CMemoryPool *mp,
const CStatistics *input_stats,
CDouble input_limit_rows);
};
} / namespace gpnaucrates
#endif / !GPNAUCRATES_CLimitStatsProcessor_H
/ EOF
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