Function apply_v_cume_dist

nodedb-query/src/window/value_eval.rs:341–373

(
    rows: &mut [Vec<Value>],
    indices: &[usize],
    column_index: &HashMap<String, usize>,
    spec: &WindowFuncSpec,
    write_col: usize,
)

}

fn apply_v_cume_dist(
    rows: &mut [Vec<Value>],
    indices: &[usize],
    column_index: &HashMap<String, usize>,
    spec: &WindowFuncSpec,
    write_col: usize,
) {
    let total = indices.len();
    if total == 0 {
        return;
    }
    let denom = total as f64;
    let mut group_start = 0;
    while group_start < total {
        let mut group_end = group_start + 1;
        while group_end < total
            && order_keys_equal_v(
                rows,
                indices[group_start],
                indices[group_end],
                column_index,
                &spec.order_by,
            )
        {
            group_end += 1;
        }
        let cd = group_end as f64 / denom;
        for &idx in &indices[group_start..group_end] {
            set_cell(rows, idx, write_col, Value::Float(cd));
        }
        group_start = group_end;
    }
}

// ── Offset functions ──────────────────────────────────────────────────────────