pub struct ArrowReader { /* private fields */ }Expand description
Reads data from Parquet files
Implementations§
Source§impl ArrowReader
impl ArrowReader
Sourcepub fn read(self, tasks: FileScanTaskStream) -> Result<ArrowRecordBatchStream>
pub fn read(self, tasks: FileScanTaskStream) -> Result<ArrowRecordBatchStream>
Take a stream of FileScanTasks and reads all the files. Returns a stream of Arrow RecordBatches containing the data from the files
Trait Implementations§
Source§impl Clone for ArrowReader
impl Clone for ArrowReader
Source§fn clone(&self) -> ArrowReader
fn clone(&self) -> ArrowReader
Returns a duplicate of the value. Read more
1.0.0 · Source§fn clone_from(&mut self, source: &Self)
fn clone_from(&mut self, source: &Self)
Performs copy-assignment from
source. Read moreAuto Trait Implementations§
impl Freeze for ArrowReader
impl !RefUnwindSafe for ArrowReader
impl Send for ArrowReader
impl Sync for ArrowReader
impl Unpin for ArrowReader
impl !UnwindSafe for ArrowReader
Blanket Implementations§
Source§impl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
Source§fn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
Source§impl<T> CloneToUninit for Twhere
T: Clone,
impl<T> CloneToUninit for Twhere
T: Clone,
Source§impl<T> Downcast for T
impl<T> Downcast for T
Source§impl<T> Instrument for T
impl<T> Instrument for T
Source§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
Source§fn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
Source§impl<T> IntoEither for T
impl<T> IntoEither for T
Source§fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
fn into_either(self, into_left: bool) -> Either<Self, Self> ⓘ
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 moreSource§fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
fn into_either_with<F>(self, into_left: F) -> Either<Self, Self> ⓘ
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 moreSource§impl<T> Pointable for T
impl<T> Pointable for T
Source§impl<T> PolicyExt for Twhere
T: ?Sized,
impl<T> PolicyExt for Twhere
T: ?Sized,
Source§impl<T> ServiceExt for T
impl<T> ServiceExt for T
Source§fn map_response_body<F>(self, f: F) -> MapResponseBody<Self, F>where
Self: Sized,
fn map_response_body<F>(self, f: F) -> MapResponseBody<Self, F>where
Self: Sized,
Apply a transformation to the response body. Read more
Source§fn decompression(self) -> Decompression<Self>where
Self: Sized,
fn decompression(self) -> Decompression<Self>where
Self: Sized,
Decompress response bodies. Read more
Source§fn trace_for_http(self) -> Trace<Self, SharedClassifier<ServerErrorsAsFailures>>where
Self: Sized,
fn trace_for_http(self) -> Trace<Self, SharedClassifier<ServerErrorsAsFailures>>where
Self: Sized,
High level tracing that classifies responses using HTTP status codes. Read more
Source§fn trace_for_grpc(self) -> Trace<Self, SharedClassifier<GrpcErrorsAsFailures>>where
Self: Sized,
fn trace_for_grpc(self) -> Trace<Self, SharedClassifier<GrpcErrorsAsFailures>>where
Self: Sized,
High level tracing that classifies responses using gRPC headers. Read more