Struct polars_lazy::frame::JoinBuilder
source · [−]pub struct JoinBuilder { /* private fields */ }
Implementations
sourceimpl JoinBuilder
impl JoinBuilder
pub fn new(lf: LazyFrame) -> Self
sourcepub fn left_on<E: AsRef<[Expr]>>(self, on: E) -> Self
pub fn left_on<E: AsRef<[Expr]>>(self, on: E) -> Self
The columns you want to join the left table on.
sourcepub fn right_on<E: AsRef<[Expr]>>(self, on: E) -> Self
pub fn right_on<E: AsRef<[Expr]>>(self, on: E) -> Self
The columns you want to join the right table on.
sourcepub fn allow_parallel(self, allow: bool) -> Self
pub fn allow_parallel(self, allow: bool) -> Self
Allow parallel table evaluation.
sourcepub fn force_parallel(self, allow: bool) -> Self
pub fn force_parallel(self, allow: bool) -> Self
Force parallel table evaluation.
Auto Trait Implementations
impl !RefUnwindSafe for JoinBuilder
impl Send for JoinBuilder
impl Sync for JoinBuilder
impl Unpin for JoinBuilder
impl !UnwindSafe for JoinBuilder
Blanket Implementations
sourceimpl<T> BorrowMut<T> for T where
T: ?Sized,
impl<T> BorrowMut<T> for T where
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more