presto-main/src/main/java/io/prestosql/operator/aggregation/DecimalAverageAggregation.java/DecimalAverageAggregation/inputShortDecimal
class DecimalAverageAggregation:    public static void inputShortDecimal(Type type, LongDecimalWithOverflowAndLongState state, Block block, int position)
    {
        accumulateValueInState(UnscaledDecimal128Arithmetic.unscaledDecimal(type.getLong(block, position)), state);
    }