Enum WindowFrameBound 

pub enum WindowFrameBound<'a> {
    UnboundedPreceding(Span),
    Preceding(Expression<'a>, Span),
    CurrentRow(Span),
    Following(Expression<'a>, Span),
    UnboundedFollowing(Span),
}

One bound in a window frame clause

Variants

UnboundedPreceding(Span)

UNBOUNDED PRECEDING

Preceding(Expression<'a>, Span)

PRECEDING

CurrentRow(Span)

CURRENT ROW

Following(Expression<'a>, Span)

FOLLOWING

UnboundedFollowing(Span)

UNBOUNDED FOLLOWING

Trait Implementations

impl<'a> Clone for WindowFrameBound<'a>

fn clone(&self) -> WindowFrameBound<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for WindowFrameBound<'a>

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

Formats the value using the given formatter.

impl<'a> Spanned for WindowFrameBound<'a>

fn span(&self) -> Span

Compute byte span of an ast fragment

fn join_span(&self, other: &impl OptSpanned) -> Span

Compute the minimal span containing both self and other