Function list_concat

src/expr/src/relation/func.rs:431–439

(datums: I, temp_storage: &'a RowArena, order_by: &[ColumnOrder])

}

fn list_concat<'a, I>(datums: I, temp_storage: &'a RowArena, order_by: &[ColumnOrder]) -> Datum<'a>
where
    I: IntoIterator<Item = Datum<'a>>,
{
    let datums = order_aggregate_datums(datums, order_by);
    temp_storage.make_datum(|packer| {
        packer.push_list(datums.into_iter().map(|d| d.unwrap_list().iter()).flatten());
    })
}

/// The expected input is in the format of `[((OriginalRow, [EncodedArgs]), OrderByExprs...)]`
/// The output is in the format of `[result_value, original_row]`.