Module polars_io::csv::write

This is supported on crate features csv-file and io_csv_write only.

APIs to write to CSV

Structs

ByteRecord

A single CSV record stored as raw bytes.

SerializeOptions

Options to serialize logical types to CSV

Writer

A already configured CSV writer.

WriterBuilder

Builds a CSV writer with various configuration knobs.

Functions

new_serializer

Returns a StreamingIterator that yields &[u8] serialized from array according to options. For numeric types, this serializes as usual. For dates, times and timestamps, it uses options to Supported types:

serialize

Serializes a RecordBatch as vector of ByteRecord. The vector is guaranteed to have batch.num_rows() entries. Each ByteRecord is guaranteed to have batch.num_columns() fields.

write_batch

Writes the data in a RecordBatch to writer according to the serialization options options.

write_header

Writes a header to writer according to schema