Trait polars_io::ArrowReader

pub trait ArrowReader {
    fn next_record_batch(&mut self) -> ArrowResult<Option<RecordBatch>>;
    fn schema(&self) -> Arc<Schema>;
}

Required methods

fn next_record_batch(&mut self) -> ArrowResult<Option<RecordBatch>>

fn schema(&self) -> Arc<Schema>

Implementations on Foreign Types

impl<R> ArrowReader for ArrowIPCFileReader<R> where
    R: Read + Seek, 

This is supported on crate feature ipc only.

fn next_record_batch(&mut self) -> ArrowResult<Option<RecordBatch>>

fn schema(&self) -> Arc<Schema>

impl ArrowReader for ParquetRecordBatchReader

This is supported on crate feature feature only.

fn next_record_batch(&mut self) -> ArrowResult<Option<RecordBatch>>

fn schema(&self) -> Arc<Schema>

impl<R: Read> ArrowReader for ArrowJsonReader<R>

fn next_record_batch(&mut self) -> ArrowResult<Option<RecordBatch>>

fn schema(&self) -> Arc<Schema>

Implementors