Pkg/parquet/Record

Record

type Record = Record

A record represents a row in a parquet file.

Methods

get

pub fn get<T>(self, col: int | string): T throws IoError, ParquetError, ArrowError

[src]

pub fn get<T>(self, col: int | string): T throws IoError, ParquetError, ArrowError {
    switch (let col = col.(type)) {
        case int:
            return try (self as _Record).get::<T>(col);
        case string:
            return try (self as _Record).get_by_name::<T>(col);
    }
}

The cell of the column at the given index. Or get by column name, if you present the col argument as a string.

The cell of the column at the given index. Or get by column name, if you present the col argument as a string.

use std.fs.File;
use parquet.Reader;

fn main() throws {
    let f = try File.open("tests/fixtures/stocks.parquet");
    let reader = try Reader.new(f);
    let record = try reader.next()!;

    // If the column is of type `int`, we can get the value like this:
    let cell = try record.get::<int>(0);
    // Or if the column is of type `string`:
    let cell = try record.get::<string>(0);

    // We can also get the value by column name:
    let cell = try record.get::<int>("name");
}

len

pub fn len(self): int

[src]

pub fn len(self): int {
    return (self as _Record).len();
}

Get number of columns in the record.

Get number of columns in the record.