Struct FrameClause 

pub struct FrameClause {
    pub frame_type: FrameType,
    pub start: Frame,
    pub end: Option<Frame>,
}

Frame clause for window functions.

Defines the frame boundaries for a window function.

Examples

use reinhardt_query::types::{FrameClause, FrameType, Frame};

// ROWS BETWEEN UNBOUNDED PRECEDING AND CURRENT ROW
let frame = FrameClause {
    frame_type: FrameType::Rows,
    start: Frame::UnboundedPreceding,
    end: Some(Frame::CurrentRow),
};

// RANGE BETWEEN 1 PRECEDING AND 1 FOLLOWING
let frame2 = FrameClause {
    frame_type: FrameType::Range,
    start: Frame::Preceding(1),
    end: Some(Frame::Following(1)),
};

Fields

frame_type: FrameType

Frame type (RANGE, ROWS, or GROUPS).

start: Frame

Start boundary of the frame.

end: Option<Frame>

End boundary of the frame (if None, only start is specified).

Trait Implementations

impl Clone for FrameClause

fn clone(&self) -> FrameClause

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FrameClause

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

Formats the value using the given formatter.