Struct IpcReaderAsync

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pub struct IpcReaderAsync { /* private fields */ }

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

Expand description

An Arrow IPC reader implemented on top of PolarsObjectStore.

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impl IpcReaderAsync

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pub async fn from_uri( uri: PlRefPath, cloud_options: Option<&CloudOptions>, ) -> PolarsResult<IpcReaderAsync>

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pub async fn metadata(&self) -> PolarsResult<FileMetadata>

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pub async fn data( &self, metadata: Option<&FileMetadata>, options: IpcReadOptions, verbose: bool, ) -> PolarsResult<DataFrame>

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pub async fn count_rows( &self, _metadata: Option<&FileMetadata>, ) -> PolarsResult<i64>

Auto Trait Implementations§

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impl !UnwindSafe for IpcReaderAsync

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impl<T> Any for T
where T: 'static + ?Sized,

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impl<T> Borrow<T> for T
where T: ?Sized,

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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

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impl<T> From<T> for T

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fn from(t: T) -> T

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided [Span], returning an Instrumented wrapper. Read more

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fn in_current_span(self) -> Instrumented<Self>

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Calls U::from(self).

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impl<T> IntoEither for T

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Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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