pub struct ParquetObjectStore { /* private fields */ }Available on crate features
parquet and cloud only.Implementations§
Source§impl ParquetObjectStore
impl ParquetObjectStore
pub async fn from_uri( uri: PlRefPath, 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 UnsafeUnpin 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