use std::fs::File;
use std::io::BufReader;
use std::sync::Arc;
use arrow2::array::Array;
use arrow2::error::Result;
use arrow2::io::json::read;
fn read_path(path: &str) -> Result<Arc<dyn Array>> {
let reader = BufReader::new(File::open(path)?);
let json = serde_json::from_reader(reader)?;
let data_type = read::infer(&json)?;
read::deserialize(&json, data_type)
}
fn main() -> Result<()> {
use std::env;
let args: Vec<String> = env::args().collect();
let file_path = &args[1];
let batch = read_path(file_path)?;
println!("{:#?}", batch);
Ok(())
}