Enum WindowFunc 

pub enum WindowFunc {
    RowNumber,
    Rank,
    DenseRank,
    PercentRank,
    CumeDist,
    Ntile,
    Lag,
    Lead,
    FirstValue,
    LastValue,
    NthValue,
}

A window function that is not an aggregate.

The aggregates are the same functions in a different frame, so they are not listed again here: sum(x) OVER (...) is AggregateFunc::Sum with a frame, and giving it a second spelling would mean two implementations of sum.

Variants

RowNumber

row_number()

Rank

rank()

DenseRank

dense_rank()

PercentRank

percent_rank()

CumeDist

cume_dist()

Ntile

ntile(n)

Lag

lag(x[, offset[, default]])

Lead

lead(x[, offset[, default]])

FirstValue

first_value(x)

LastValue

last_value(x)

NthValue

nth_value(x, n)

Implementations

impl WindowFunc

pub fn arity(self) -> (usize, usize)

Returns how many arguments the function takes, as (least, most).

Trait Implementations

impl Clone for WindowFunc

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for WindowFunc

impl Debug for WindowFunc

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

Formats the value using the given formatter.

impl Eq for WindowFunc

impl PartialEq for WindowFunc

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for WindowFunc