presto-spi/src/main/java/io/prestosql/spi/block/ByteArrayBlockBuilder.java/ByteArrayBlockBuilder/getEstimatedDataSizeForStats
class ByteArrayBlockBuilder:    @Override
    public long getEstimatedDataSizeForStats(int position)
    {
        return isNull(position) ? 0 : Byte.BYTES;
    }