pub struct DataFrameWriter<'a> { /* private fields */ }Expand description
Root-owned DataFrameWriter; delegates to the Polars backend.
Implementations§
Source§impl<'a> DataFrameWriter<'a>
impl<'a> DataFrameWriter<'a>
pub fn mode(self, mode: WriteMode) -> Self
pub fn format(self, format: WriteFormat) -> Self
pub fn option(self, key: impl Into<String>, value: impl Into<String>) -> Self
pub fn options(self, opts: impl IntoIterator<Item = (String, String)>) -> Self
pub fn partition_by( self, cols: impl IntoIterator<Item = impl Into<String>>, ) -> Self
pub fn save_as_table( &self, session: &SparkSession, name: &str, mode: SaveMode, ) -> Result<(), PolarsError>
pub fn save(&self, path: impl AsRef<Path>) -> Result<(), PolarsError>
Auto Trait Implementations§
impl<'a> Freeze for DataFrameWriter<'a>
impl<'a> !RefUnwindSafe for DataFrameWriter<'a>
impl<'a> Send for DataFrameWriter<'a>
impl<'a> Sync for DataFrameWriter<'a>
impl<'a> Unpin for DataFrameWriter<'a>
impl<'a> UnsafeUnpin for DataFrameWriter<'a>
impl<'a> !UnwindSafe for DataFrameWriter<'a>
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> 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 more