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MCOL-1793-regr_* functions get wrong answer. Pretty up some code.

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David Hall
2018-11-06 10:30:38 -06:00
parent e58c4c3381
commit 1426b4d99b
1 changed files with 17 additions and 21 deletions
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38
utils/windowfunction/windowfunction.cpp
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@ -187,30 +187,26 @@ void WindowFunction::operator()()
prevFrame = w; prevFrame = w;
} }
// UDAnF functions may have a dropValue function implemented.
// If they do, we can optimize by calling dropValue() for those
// values leaving the window and nextValue for those entering, rather
// than a resetData() and then iterating over the entire window.
// Built-in functions may have this functionality added in the future.
// If b > e then the frame is entirely outside of the partition // If b > e then the frame is entirely outside of the partition
// and there's no values to drop // and there's no values to drop
if (b <= e) if (!firstTime && b <= e)
{ {
// UDAnF functions may have a dropValue function implemented. if (fFunctionType->dropValues(prevFrame.first, w.first))
// If they do, we can optimize by calling dropValue() for those
// values leaving the window and nextValue for those entering, rather
// than a resetData() and then iterating over the entire window.
// Built-in functions may have this functionality added in the future.
// If b > e, then nothing to drop.
if (!firstTime)
{ {
if (fFunctionType->dropValues(prevFrame.first, w.first)) // Adjust the beginning of the frame for nextValue
{ // to start where the previous frame left off.
// Adjust the beginning of the frame for nextValue b = prevFrame.second + 1;
// to start where the previous frame left off. }
b = prevFrame.second + 1; else
} {
else // dropValues failed or doesn't exist
{ // so calculate the entire frame.
// dropValues failed or doesn't exist fFunctionType->resetData();
// so do the entire frame.
fFunctionType->resetData();
}
} }
} }
fFunctionType->operator()(b, e, i); // UDAnF: Calls nextValue and evaluate fFunctionType->operator()(b, e, i); // UDAnF: Calls nextValue and evaluate
@ -230,7 +226,7 @@ void WindowFunction::operator()()
} }
catch (...) catch (...)
{ {
fStep->handleException("unknow exception", logging::ERR_EXECUTE_WINDOW_FUNCTION); fStep->handleException("unknown exception", logging::ERR_EXECUTE_WINDOW_FUNCTION);
} }
} }