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Leonid Fedorov
@ -18,7 +18,6 @@
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// $Id: wf_stats.cpp 3932 2013-06-25 16:08:10Z xlou $
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//#define NDEBUG
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#include <cassert>
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#include <cmath>
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@ -49,206 +48,195 @@ using namespace joblist;
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#include "wf_stats.h"
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namespace windowfunction
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{
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template<typename T>
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boost::shared_ptr<WindowFunctionType> WF_stats<T>::makeFunction(int id, const string& name, int ct, WindowFunctionColumn* wc)
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template <typename T>
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boost::shared_ptr<WindowFunctionType> WF_stats<T>::makeFunction(int id, const string& name, int ct,
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WindowFunctionColumn* wc)
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{
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boost::shared_ptr<WindowFunctionType> func;
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boost::shared_ptr<WindowFunctionType> func;
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switch (ct)
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switch (ct)
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{
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case CalpontSystemCatalog::TINYINT:
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case CalpontSystemCatalog::SMALLINT:
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case CalpontSystemCatalog::MEDINT:
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case CalpontSystemCatalog::INT:
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case CalpontSystemCatalog::BIGINT:
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{
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case CalpontSystemCatalog::TINYINT:
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case CalpontSystemCatalog::SMALLINT:
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case CalpontSystemCatalog::MEDINT:
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case CalpontSystemCatalog::INT:
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case CalpontSystemCatalog::BIGINT:
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{
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func.reset(new WF_stats<int64_t>(id, name));
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break;
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}
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case CalpontSystemCatalog::UTINYINT:
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case CalpontSystemCatalog::USMALLINT:
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case CalpontSystemCatalog::UMEDINT:
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case CalpontSystemCatalog::UINT:
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case CalpontSystemCatalog::UBIGINT:
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{
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func.reset(new WF_stats<uint64_t>(id, name));
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break;
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}
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case CalpontSystemCatalog::DECIMAL:
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case CalpontSystemCatalog::UDECIMAL:
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{
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decltype(datatypes::MAXDECIMALWIDTH) width =
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wc->functionParms()[0]->resultType().colWidth;
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if (width < datatypes::MAXDECIMALWIDTH)
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{
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if (ct == CalpontSystemCatalog::UDECIMAL)
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func.reset(new WF_stats<uint64_t>(id, name));
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else
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func.reset(new WF_stats<int64_t>(id, name));
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}
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else if (width == datatypes::MAXDECIMALWIDTH)
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{
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func.reset(new WF_stats<int128_t>(id, name));
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}
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break;
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}
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case CalpontSystemCatalog::DOUBLE:
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case CalpontSystemCatalog::UDOUBLE:
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{
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func.reset(new WF_stats<double>(id, name));
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break;
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}
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case CalpontSystemCatalog::FLOAT:
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case CalpontSystemCatalog::UFLOAT:
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{
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func.reset(new WF_stats<float>(id, name));
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break;
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}
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case CalpontSystemCatalog::LONGDOUBLE:
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{
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func.reset(new WF_stats<long double>(id, name));
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break;
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}
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default:
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{
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string errStr = name + "(" + colType2String[ct] + ")";
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errStr = IDBErrorInfo::instance()->errorMsg(ERR_WF_INVALID_PARM_TYPE, errStr);
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cerr << errStr << endl;
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throw IDBExcept(errStr, ERR_WF_INVALID_PARM_TYPE);
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break;
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}
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func.reset(new WF_stats<int64_t>(id, name));
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break;
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}
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return func;
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case CalpontSystemCatalog::UTINYINT:
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case CalpontSystemCatalog::USMALLINT:
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case CalpontSystemCatalog::UMEDINT:
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case CalpontSystemCatalog::UINT:
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case CalpontSystemCatalog::UBIGINT:
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{
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func.reset(new WF_stats<uint64_t>(id, name));
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break;
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}
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case CalpontSystemCatalog::DECIMAL:
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case CalpontSystemCatalog::UDECIMAL:
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{
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decltype(datatypes::MAXDECIMALWIDTH) width = wc->functionParms()[0]->resultType().colWidth;
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if (width < datatypes::MAXDECIMALWIDTH)
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{
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if (ct == CalpontSystemCatalog::UDECIMAL)
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func.reset(new WF_stats<uint64_t>(id, name));
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else
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func.reset(new WF_stats<int64_t>(id, name));
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}
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else if (width == datatypes::MAXDECIMALWIDTH)
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{
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func.reset(new WF_stats<int128_t>(id, name));
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}
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break;
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}
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case CalpontSystemCatalog::DOUBLE:
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case CalpontSystemCatalog::UDOUBLE:
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{
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func.reset(new WF_stats<double>(id, name));
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break;
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}
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case CalpontSystemCatalog::FLOAT:
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case CalpontSystemCatalog::UFLOAT:
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{
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func.reset(new WF_stats<float>(id, name));
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break;
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}
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case CalpontSystemCatalog::LONGDOUBLE:
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{
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func.reset(new WF_stats<long double>(id, name));
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break;
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}
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default:
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{
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string errStr = name + "(" + colType2String[ct] + ")";
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errStr = IDBErrorInfo::instance()->errorMsg(ERR_WF_INVALID_PARM_TYPE, errStr);
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cerr << errStr << endl;
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throw IDBExcept(errStr, ERR_WF_INVALID_PARM_TYPE);
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break;
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}
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}
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return func;
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}
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template<typename T>
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template <typename T>
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WindowFunctionType* WF_stats<T>::clone() const
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{
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return new WF_stats<T>(*this);
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return new WF_stats<T>(*this);
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}
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template<typename T>
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template <typename T>
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void WF_stats<T>::resetData()
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{
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fSum1 = 0;
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fSum2 = 0;
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fCount = 0;
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fStats = 0.0;
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fSum1 = 0;
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fSum2 = 0;
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fCount = 0;
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fStats = 0.0;
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WindowFunctionType::resetData();
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WindowFunctionType::resetData();
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}
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template<typename T>
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template <typename T>
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void WF_stats<T>::operator()(int64_t b, int64_t e, int64_t c)
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{
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CDT cdt;
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if ((fFrameUnit == WF__FRAME_ROWS) ||
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(fPrev == -1) ||
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(!fPeer->operator()(getPointer(fRowData->at(c)), getPointer(fRowData->at(fPrev)))))
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CDT cdt;
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if ((fFrameUnit == WF__FRAME_ROWS) || (fPrev == -1) ||
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(!fPeer->operator()(getPointer(fRowData->at(c)), getPointer(fRowData->at(fPrev)))))
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{
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// for unbounded - current row special handling
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if (fPrev >= b && fPrev < c)
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b = c;
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else if (fPrev <= e && fPrev > c)
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e = c;
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uint64_t colIn = fFieldIndex[1];
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for (int64_t i = b; i <= e; i++)
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{
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// for unbounded - current row special handling
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if (fPrev >= b && fPrev < c)
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b = c;
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else if (fPrev <= e && fPrev > c)
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e = c;
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if (i % 1000 == 0 && fStep->cancelled())
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break;
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uint64_t colIn = fFieldIndex[1];
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fRow.setData(getPointer(fRowData->at(i)));
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for (int64_t i = b; i <= e; i++)
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{
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if (i % 1000 == 0 && fStep->cancelled())
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break;
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if (fRow.isNullValue(colIn) == true)
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continue;
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fRow.setData(getPointer(fRowData->at(i)));
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T valIn;
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getValue(colIn, valIn, &cdt);
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long double val = (long double)valIn;
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if (fRow.isNullValue(colIn) == true)
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continue;
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T valIn;
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getValue(colIn, valIn, &cdt);
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long double val = (long double) valIn;
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fSum1 += val;
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fSum2 += val * val;
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fCount++;
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}
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if (fCount > 1)
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{
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uint32_t scale = fRow.getScale(colIn);
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auto factor = datatypes::scaleDivisor<long double>(scale);
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long double ldSum1 = fSum1;
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long double ldSum2 = fSum2;
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// adjust the scale if necessary
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if (scale != 0 &&
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cdt != CalpontSystemCatalog::LONGDOUBLE)
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{
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ldSum1 /= factor;
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ldSum2 /= factor * factor;
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}
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long double stat = ldSum1 * ldSum1 / fCount;
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stat = ldSum2 - stat;
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if (fFunctionId == WF__STDDEV_POP)
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stat = sqrt(stat / fCount);
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else if (fFunctionId == WF__STDDEV_SAMP)
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stat = sqrt(stat / (fCount - 1));
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else if (fFunctionId == WF__VAR_POP)
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stat = stat / fCount;
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else if (fFunctionId == WF__VAR_SAMP)
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stat = stat / (fCount - 1);
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fStats = (double) stat;
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}
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fSum1 += val;
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fSum2 += val * val;
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fCount++;
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}
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if (fCount == 0)
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if (fCount > 1)
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{
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setValue(CalpontSystemCatalog::DOUBLE, b, e, c, (double*) NULL);
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}
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else if (fCount == 1)
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{
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if (fFunctionId == WF__STDDEV_SAMP || fFunctionId == WF__VAR_SAMP)
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{
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setValue(CalpontSystemCatalog::DOUBLE, b, e, c, (double*) NULL);
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}
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else // fFunctionId == WF__STDDEV_POP || fFunctionId == WF__VAR_POP
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{
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double temp = 0.0;
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setValue(CalpontSystemCatalog::DOUBLE, b, e, c, (double*) &temp);
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}
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}
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else
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{
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setValue(CalpontSystemCatalog::DOUBLE, b, e, c, &fStats);
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}
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uint32_t scale = fRow.getScale(colIn);
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auto factor = datatypes::scaleDivisor<long double>(scale);
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long double ldSum1 = fSum1;
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long double ldSum2 = fSum2;
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fPrev = c;
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// adjust the scale if necessary
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if (scale != 0 && cdt != CalpontSystemCatalog::LONGDOUBLE)
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{
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ldSum1 /= factor;
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ldSum2 /= factor * factor;
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}
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long double stat = ldSum1 * ldSum1 / fCount;
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stat = ldSum2 - stat;
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if (fFunctionId == WF__STDDEV_POP)
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stat = sqrt(stat / fCount);
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else if (fFunctionId == WF__STDDEV_SAMP)
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stat = sqrt(stat / (fCount - 1));
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else if (fFunctionId == WF__VAR_POP)
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stat = stat / fCount;
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else if (fFunctionId == WF__VAR_SAMP)
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stat = stat / (fCount - 1);
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fStats = (double)stat;
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}
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}
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if (fCount == 0)
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{
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setValue(CalpontSystemCatalog::DOUBLE, b, e, c, (double*)NULL);
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}
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else if (fCount == 1)
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{
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if (fFunctionId == WF__STDDEV_SAMP || fFunctionId == WF__VAR_SAMP)
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{
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setValue(CalpontSystemCatalog::DOUBLE, b, e, c, (double*)NULL);
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}
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else // fFunctionId == WF__STDDEV_POP || fFunctionId == WF__VAR_POP
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{
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double temp = 0.0;
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setValue(CalpontSystemCatalog::DOUBLE, b, e, c, (double*)&temp);
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}
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}
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else
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{
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setValue(CalpontSystemCatalog::DOUBLE, b, e, c, &fStats);
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}
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fPrev = c;
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}
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template boost::shared_ptr<WindowFunctionType> WF_stats<int64_t>::makeFunction(int, const string&, int,
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WindowFunctionColumn*);
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template
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boost::shared_ptr<WindowFunctionType> WF_stats<int64_t>::makeFunction(int, const string&, int, WindowFunctionColumn*);
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} //namespace
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} // namespace windowfunction
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// vim:ts=4 sw=4:
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