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