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fixed scale calc, again

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This commit is contained in:
myrrc 2020-11-24 17:29:30 +03:00
parent 03139c2c1e
commit b7e94b487c
1 changed files with 3 additions and 3 deletions
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6
src/AggregateFunctions/AggregateFunctionAvg.h
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@ -37,15 +37,15 @@ struct AvgFraction
{
if constexpr (IsDecimalNumber<Numerator> && IsDecimalNumber<Denominator>)
{
const UInt32 result_scale = std::max(num_scale, denom_scale);
// According to the docs, num(S1) / denom(S2) would have scale S1
if constexpr (std::is_same_v<Numerator, Decimal256> && std::is_same_v<Denominator, Decimal128>)
///Special case as Decimal256 / Decimal128 = compile error (as Decimal128 is not parametrized by a wide
///int), but an __int128 instead
return DecimalUtils::convertTo<Float64>(
numerator / (denominator.template convertTo<Decimal256>()), result_scale);
numerator / (denominator.template convertTo<Decimal256>()), num_scale);
else
return DecimalUtils::convertTo<Float64>(numerator / denominator, result_scale);
return DecimalUtils::convertTo<Float64>(numerator / denominator, num_scale);
}
/// Numerator is always casted to Float64 to divide correctly if the denominator is not Float64.