Function mz_expr::relation::func::first_value

source · 
fn first_value<'a, I>(
    datums: I,
    callers_temp_storage: &'a RowArena,
    order_by: &[ColumnOrder],
    window_frame: &WindowFrame,
) -> Datum<'a>
where
    I: IntoIterator<Item = Datum<'a>>,
Expand description

The expected input is in the format of [((OriginalRow, InputValue), OrderByExprs…)]