Struct Lag 

pub struct Lag;

LAG(expr, offset).

Implementations

impl Lag

pub fn new(expr: impl Into<Expr>, offset: u32) -> Window

expr read offset rows away; NULL past the partition edge.

pub fn or_default( expr: impl Into<Expr>, offset: u32, default: impl Into<Expr>, ) -> Window

Like new with default past the partition edge.

Trait Implementations

impl Clone for Lag

fn clone(&self) -> Lag

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for Lag

impl Debug for Lag

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

Formats the value using the given formatter.