Module read

Available on crate features csv or json only.

Functionality for reading CSV files.

Examples

use polars_core::prelude::*;
use polars_io::prelude::*;
use std::fs::File;

fn example() -> PolarsResult<DataFrame> {
    // Prefer `from_path` over `new` as it is faster.
    CsvReadOptions::default()
        .with_has_header(true)
        .try_into_reader_with_file_path(Some("example.csv".into()))?
        .finish()
}

Re-exports

• pub use schema_inference::infer_file_schema;

Modules

• _csv_read_internal
• buffer
• schema_inference

Structs

• BatchedCsvReader
• CsvParseOptions
• CsvReadOptions
• CsvReader
  Create a new DataFrame by reading a csv file.
• OwnedBatchedCsvReader

Enums

• CommentPrefix
• CsvEncoding
• NullValues

Functions

• count_rows
  Read the number of rows without parsing columns useful for count(*) queries
• count_rows_from_slice
  Read the number of rows without parsing columns useful for count(*) queries