Struct polars::prelude::CsvWriter

pub struct CsvWriter<W> where
    W: Write,  { /* fields omitted */ }

Write a DataFrame to csv.

Implementations

impl<W> CsvWriter<W> where
    W: Write, 

pub fn has_headers(self, has_headers: bool) -> CsvWriter<W>

Set whether to write headers

pub fn with_delimiter(self, delimiter: u8) -> CsvWriter<W>

Set the CSV file’s column delimiter as a byte character

pub fn with_date_format(self, format: String) -> CsvWriter<W>

Set the CSV file’s date format

pub fn with_time_format(self, format: String) -> CsvWriter<W>

Set the CSV file’s time format

pub fn with_timestamp_format(self, format: String) -> CsvWriter<W>

Set the CSV file’s timestamp format array in

pub fn with_batch_size(self, _batch_size: usize) -> CsvWriter<W>

👎 Deprecated since 0.14.1:

is a no-op

Set the size of the write buffers. Batch size is the amount of rows written at once.

Trait Implementations

impl<W> SerWriter<W> for CsvWriter<W> where
    W: Write, 

pub fn new(buffer: W) -> CsvWriter<W>

pub fn finish(self, df: &DataFrame) -> Result<(), PolarsError>