Function map_values_inner

datafusion/functions-nested/src/map_values.rs:118–132

(args: &[ArrayRef])

}

fn map_values_inner(args: &[ArrayRef]) -> Result<ArrayRef> {
    let [map_arg] = take_function_args("map_values", args)?;

    let map_array = match map_arg.data_type() {
        DataType::Map(_, _) => as_map_array(&map_arg)?,
        _ => return exec_err!("Argument for map_values should be a map"),
    };

    Ok(Arc::new(ListArray::new(
        get_map_values_field_as_list_field(map_arg.data_type())?,
        map_array.offsets().clone(),
        Arc::clone(map_array.values()),
        map_array.nulls().cloned(),
    )))
}

fn get_map_values_field_as_list_field(map_type: &DataType) -> Result<FieldRef> {
    let map_fields = get_map_entry_field(map_type)?;