Struct datafusion::logical_expr::expr::WindowFunction
source · pub struct WindowFunction {
pub fun: WindowFunctionDefinition,
pub args: Vec<Expr>,
pub partition_by: Vec<Expr>,
pub order_by: Vec<Expr>,
pub window_frame: WindowFrame,
pub null_treatment: Option<NullTreatment>,
}
Expand description
Window function
Fields§
§fun: WindowFunctionDefinition
Name of the function
args: Vec<Expr>
List of expressions to feed to the functions as arguments
partition_by: Vec<Expr>
List of partition by expressions
order_by: Vec<Expr>
List of order by expressions
window_frame: WindowFrame
Window frame
null_treatment: Option<NullTreatment>
Specifies how NULL value is treated: ignore or respect
Implementations§
source§impl WindowFunction
impl WindowFunction
sourcepub fn new(
fun: WindowFunctionDefinition,
args: Vec<Expr>,
partition_by: Vec<Expr>,
order_by: Vec<Expr>,
window_frame: WindowFrame,
null_treatment: Option<NullTreatment>
) -> WindowFunction
pub fn new( fun: WindowFunctionDefinition, args: Vec<Expr>, partition_by: Vec<Expr>, order_by: Vec<Expr>, window_frame: WindowFrame, null_treatment: Option<NullTreatment> ) -> WindowFunction
Create a new Window expression
Trait Implementations§
source§impl Clone for WindowFunction
impl Clone for WindowFunction
source§fn clone(&self) -> WindowFunction
fn clone(&self) -> WindowFunction
Returns a copy 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 moresource§impl Debug for WindowFunction
impl Debug for WindowFunction
source§impl Hash for WindowFunction
impl Hash for WindowFunction
source§impl PartialEq for WindowFunction
impl PartialEq for WindowFunction
source§fn eq(&self, other: &WindowFunction) -> bool
fn eq(&self, other: &WindowFunction) -> bool
This method tests for
self
and other
values to be equal, and is used
by ==
.impl Eq for WindowFunction
impl StructuralPartialEq for WindowFunction
Auto Trait Implementations§
impl Freeze for WindowFunction
impl !RefUnwindSafe for WindowFunction
impl Send for WindowFunction
impl Sync for WindowFunction
impl Unpin for WindowFunction
impl !UnwindSafe for WindowFunction
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<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§impl<Q, K> Equivalent<K> for Q
impl<Q, K> Equivalent<K> for Q
source§fn equivalent(&self, key: &K) -> bool
fn equivalent(&self, key: &K) -> bool
Compare self to
key
and return true
if they are equal.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