presto-main/src/main/java/io/prestosql/operator/aggregation/state/LongDecimalWithOverflowAndLongStateFactory.java/LongDecimalWithOverflowAndLongStateFactory/getEstimatedSize
class LongDecimalWithOverflowAndLongStateFactory:        @Override
        public long getEstimatedSize()
        {
            if (getLongDecimal() == null) {
                return SIZE_OF_LONG;
            }
            return SIZE;
        }