Enum Frame 

pub enum Frame {
    UnboundedPreceding,
    Preceding(i64),
    CurrentRow,
    Following(i64),
    UnboundedFollowing,
}

Frame boundary for window functions.

Defines the start or end boundary of a window frame.

Variants

UnboundedPreceding

UNBOUNDED PRECEDING - beginning of partition.

Preceding(i64)

N PRECEDING - N rows/values before current row.

CurrentRow

CURRENT ROW - the current row.

Following(i64)

N FOLLOWING - N rows/values after current row.

UnboundedFollowing

UNBOUNDED FOLLOWING - end of partition.

Trait Implementations

impl Clone for Frame

fn clone(&self) -> Frame

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Frame

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

Formats the value using the given formatter.

impl PartialEq for Frame

fn eq(&self, other: &Frame) -> 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 Frame

impl StructuralPartialEq for Frame