Struct Window

pub struct Window {
    pub input: Arc<LogicalPlan>,
    pub window_expr: Vec<Expr>,
    pub schema: DFSchemaRef,
}

Window its input based on a set of window spec and window function (e.g. SUM or RANK)

Fields

input: Arc<LogicalPlan>

The incoming logical plan

window_expr: Vec<Expr>

The window function expression

schema: DFSchemaRef

The schema description of the window output

Implementations

impl Window

pub fn try_new(window_expr: Vec<Expr>, input: Arc<LogicalPlan>) -> Result<Self>

Create a new window operator.

pub fn try_new_with_schema( window_expr: Vec<Expr>, input: Arc<LogicalPlan>, schema: DFSchemaRef, ) -> Result<Self>

Trait Implementations

impl Clone for Window

fn clone(&self) -> Window

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Window

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Hash for Window

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for Window

fn eq(&self, other: &Window) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Window

fn partial_cmp(&self, other: &Self) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Eq for Window

impl StructuralPartialEq for Window