Trait polars_io::SerReader

pub trait SerReader<R>where
    R: Read + Seek,{
    fn new(reader: R) -> Self;
    fn finish(self) -> PolarsResult<DataFrame>;

    fn set_rechunk(self, _rechunk: bool) -> Self
    where
        Self: Sized,
    { ... }
}

Required Methods

fn new(reader: R) -> Self

fn finish(self) -> PolarsResult<DataFrame>

Take the SerReader and return a parsed DataFrame.

Provided Methods

fn set_rechunk(self, _rechunk: bool) -> Selfwhere
    Self: Sized,

Rechunk to a single chunk after Reading file.

Implementors

impl<'a, R> SerReader<R> for CsvReader<'a, R>where
    R: MmapBytesReader + 'a,

Available on crate features csv-file or json only.

impl<'a, R> SerReader<R> for JsonLineReader<'a, R>where
    R: MmapBytesReader,

Available on crate feature json only.

impl<R> SerReader<R> for IpcStreamReader<R>where
    R: Read + Seek,

Available on crate feature ipc_streaming and (crate features ipc or ipc_streaming) only.

impl<R> SerReader<R> for JsonReader<R>where
    R: MmapBytesReader,

Available on crate feature json only.

impl<R: MmapBytesReader> SerReader<R> for IpcReader<R>

Available on crate feature ipc and (crate features ipc or ipc_streaming) only.

impl<R: MmapBytesReader> SerReader<R> for ParquetReader<R>

Available on crate feature parquet only.