Enum WindowFrameBound 

pub enum WindowFrameBound {
    CurrentRow,
    Preceding(Option<Box<Expr>>),
    Following(Option<Box<Expr>>),
}

Specifies WindowFrame’s start_bound and end_bound

Variants

CurrentRow

CURRENT ROW

Preceding(Option<Box<Expr>>)

<offset> PRECEDING or UNBOUNDED PRECEDING

Following(Option<Box<Expr>>)

<offset> FOLLOWING or UNBOUNDED FOLLOWING.

Trait Implementations

impl Clone for WindowFrameBound

fn clone(&self) -> WindowFrameBound

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WindowFrameBound

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

Formats the value using the given formatter.

impl Display for WindowFrameBound

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

Formats the value using the given formatter.

impl Hash for WindowFrameBound

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 WindowFrameBound

fn eq(&self, other: &WindowFrameBound) -> 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 Eq for WindowFrameBound

impl StructuralPartialEq for WindowFrameBound