parquet::record

Trait RowFormatter

Source 
pub trait RowFormatter {
    // Required method
    fn fmt(&self, i: usize) -> &dyn Display;
}
Expand description

Trait for formatting fields within a Row.

§Examples

use std::fs::File;
use std::path::Path;
use parquet::record::Row;
use parquet::record::RowFormatter;
use parquet::file::reader::{FileReader, SerializedFileReader};

if let Ok(file) = File::open(&Path::new("test.parquet")) {
    let reader = SerializedFileReader::new(file).unwrap();
    let row = reader.get_row_iter(None).unwrap().next().unwrap().unwrap();
    println!("column 0: {}, column 1: {}", row.fmt(0), row.fmt(1));
}

Required Methods§

Source

fn fmt(&self, i: usize) -> &dyn Display

The method to format a field at the given index.

Implementors§