pub struct ParquetObjectStore { /* private fields */ }Available on crate features
cloud and parquet only.Implementations§
Source§impl ParquetObjectStore
impl ParquetObjectStore
pub async fn from_uri( uri: &str, options: Option<&CloudOptions>, metadata: Option<FileMetadataRef>, ) -> PolarsResult<Self>
Sourcepub async fn get_metadata(&mut self) -> PolarsResult<&FileMetadataRef>
pub async fn get_metadata(&mut self) -> PolarsResult<&FileMetadataRef>
Fetch and memoize the metadata of the parquet file.
pub async fn schema(&mut self) -> PolarsResult<ArrowSchemaRef>
Auto Trait Implementations§
impl !Freeze for ParquetObjectStore
impl !RefUnwindSafe for ParquetObjectStore
impl Send for ParquetObjectStore
impl Sync for ParquetObjectStore
impl Unpin for ParquetObjectStore
impl !UnwindSafe for ParquetObjectStore
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
§impl<T> Instrument for T
impl<T> Instrument for T
§fn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
§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 more