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This commit is contained in:
Leonid Fedorov
@ -18,7 +18,6 @@
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// $Id: wf_nth_value.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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@ -47,239 +46,229 @@ using namespace joblist;
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#include "wf_nth_value.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_nth_value<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_nth_value<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_nth_value<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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case CalpontSystemCatalog::DATE:
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case CalpontSystemCatalog::DATETIME:
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case CalpontSystemCatalog::TIMESTAMP:
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case CalpontSystemCatalog::TIME:
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{
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func.reset(new WF_nth_value<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_nth_value<uint64_t>(id, name));
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else
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func.reset(new WF_nth_value<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_nth_value<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_nth_value<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_nth_value<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_nth_value<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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func.reset(new WF_nth_value<string>(id, name));
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break;
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}
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func.reset(new WF_nth_value<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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case CalpontSystemCatalog::DATE:
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case CalpontSystemCatalog::DATETIME:
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case CalpontSystemCatalog::TIMESTAMP:
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case CalpontSystemCatalog::TIME:
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{
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func.reset(new WF_nth_value<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_nth_value<uint64_t>(id, name));
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else
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func.reset(new WF_nth_value<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_nth_value<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_nth_value<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_nth_value<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_nth_value<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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func.reset(new WF_nth_value<string>(id, name));
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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_nth_value<T>::clone() const
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{
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return new WF_nth_value<T>(*this);
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return new WF_nth_value<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_nth_value<T>::resetData()
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{
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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_nth_value<T>::parseParms(const std::vector<execplan::SRCP>& parms)
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{
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// parms[0]: value-expr
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// skip
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// parms[0]: value-expr
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// skip
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// parms[1]: nth value
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ConstantColumn* cc = dynamic_cast<ConstantColumn*>(parms[1].get());
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// parms[1]: nth value
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ConstantColumn* cc = dynamic_cast<ConstantColumn*>(parms[1].get());
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if (cc != NULL)
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if (cc != NULL)
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{
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fNthNull = false;
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fNth = cc->getIntVal(fRow, fNthNull); // row not used, no need to setData.
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if (fNth <= 0)
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{
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fNthNull = false;
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fNth = cc->getIntVal(fRow, fNthNull); // row not used, no need to setData.
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if (fNth <= 0)
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{
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ostringstream oss;
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oss << fNth;
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throw IDBExcept(IDBErrorInfo::instance()->errorMsg(ERR_WF_ARG_OUT_OF_RANGE,
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oss.str()), ERR_WF_ARG_OUT_OF_RANGE);
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}
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ostringstream oss;
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oss << fNth;
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throw IDBExcept(IDBErrorInfo::instance()->errorMsg(ERR_WF_ARG_OUT_OF_RANGE, oss.str()),
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ERR_WF_ARG_OUT_OF_RANGE);
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}
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}
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// parms[2]: from first | from last
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bool isNull = false;
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cc = dynamic_cast<ConstantColumn*>(parms[2].get());
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idbassert(cc != NULL);
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fFromFirst = (cc->getIntVal(fRow, isNull) > 0);
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// parms[2]: from first | from last
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bool isNull = false;
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cc = dynamic_cast<ConstantColumn*>(parms[2].get());
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idbassert(cc != NULL);
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fFromFirst = (cc->getIntVal(fRow, isNull) > 0);
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// parms[3]: respect null | ignore null
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cc = dynamic_cast<ConstantColumn*>(parms[3].get());
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idbassert(cc != NULL);
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fRespectNulls = (cc->getIntVal(fRow, isNull) > 0);
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// parms[3]: respect null | ignore null
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cc = dynamic_cast<ConstantColumn*>(parms[3].get());
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idbassert(cc != NULL);
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fRespectNulls = (cc->getIntVal(fRow, isNull) > 0);
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}
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template<typename T>
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template <typename T>
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void WF_nth_value<T>::operator()(int64_t b, int64_t e, int64_t c)
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{
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int64_t s = b;
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int64_t t = e;
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int64_t s = b;
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int64_t t = e;
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if (c != WF__BOUND_ALL)
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s = t = c;
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if (c != WF__BOUND_ALL)
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s = t = c;
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for (int64_t c = s; c <= t; c++)
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for (int64_t c = s; c <= t; c++)
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{
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if (c % 1000 == 0 && fStep->cancelled())
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break;
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int64_t idx = fFieldIndex[2];
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fRow.setData(getPointer(fRowData->at(c)));
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if (idx != -1)
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{
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if (c % 1000 == 0 && fStep->cancelled())
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break;
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double tmp = 1.0;
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fNthNull = fRow.isNullValue(idx);
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int64_t idx = fFieldIndex[2];
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fRow.setData(getPointer(fRowData->at(c)));
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if (idx != -1)
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{
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double tmp = 1.0;
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fNthNull = fRow.isNullValue(idx);
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if (!fNthNull)
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{
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implicit2T(idx, tmp, 0);
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fNth = round(tmp);
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}
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}
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bool isNull = true;
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if ((!fNthNull) && ((b + fNth - 1) <= e))
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{
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uint64_t colIn = fFieldIndex[1];
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if (fFromFirst)
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{
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int64_t k = b;
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fRow.setData(getPointer(fRowData->at(k)));
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if (fRespectNulls == false && fRow.isNullValue(colIn) == true)
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{
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while (++k < e)
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{
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fRow.setData(getPointer(fRowData->at(k)));
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if (fRow.isNullValue(colIn) == false)
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break;
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}
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}
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int64_t n = k + fNth - 1;
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if (n <= e && n >= 0)
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{
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fRow.setData(getPointer(fRowData->at(n)));
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getValue(colIn, fValue);
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isNull = fRow.isNullValue(colIn);
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}
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}
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else // from last
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{
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int64_t k = e;
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fRow.setData(getPointer(fRowData->at(k)));
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if (fRespectNulls == false && fRow.isNullValue(colIn) == true)
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{
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while (--k > b)
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{
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fRow.setData(getPointer(fRowData->at(k)));
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if (fRow.isNullValue(colIn) == false)
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break;
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}
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}
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int64_t n = k - fNth + 1;
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if (n >= b)
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{
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fRow.setData(getPointer(fRowData->at(n)));
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getValue(colIn, fValue);
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isNull = fRow.isNullValue(colIn);
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}
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}
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}
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T* v = (isNull) ? NULL : &fValue;
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setValue(fRow.getColType(fFieldIndex[0]), b, e, c, v);
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if (!fNthNull)
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{
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implicit2T(idx, tmp, 0);
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fNth = round(tmp);
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}
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}
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bool isNull = true;
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if ((!fNthNull) && ((b + fNth - 1) <= e))
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{
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uint64_t colIn = fFieldIndex[1];
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if (fFromFirst)
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{
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int64_t k = b;
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fRow.setData(getPointer(fRowData->at(k)));
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if (fRespectNulls == false && fRow.isNullValue(colIn) == true)
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{
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while (++k < e)
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{
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fRow.setData(getPointer(fRowData->at(k)));
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if (fRow.isNullValue(colIn) == false)
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break;
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}
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}
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int64_t n = k + fNth - 1;
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if (n <= e && n >= 0)
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{
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fRow.setData(getPointer(fRowData->at(n)));
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getValue(colIn, fValue);
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isNull = fRow.isNullValue(colIn);
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}
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}
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else // from last
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{
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int64_t k = e;
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fRow.setData(getPointer(fRowData->at(k)));
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if (fRespectNulls == false && fRow.isNullValue(colIn) == true)
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{
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while (--k > b)
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{
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fRow.setData(getPointer(fRowData->at(k)));
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if (fRow.isNullValue(colIn) == false)
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break;
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}
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}
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int64_t n = k - fNth + 1;
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if (n >= b)
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{
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fRow.setData(getPointer(fRowData->at(n)));
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getValue(colIn, fValue);
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isNull = fRow.isNullValue(colIn);
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}
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}
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}
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T* v = (isNull) ? NULL : &fValue;
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setValue(fRow.getColType(fFieldIndex[0]), b, e, c, v);
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}
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}
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template boost::shared_ptr<WindowFunctionType> WF_nth_value<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_nth_value<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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