Method fields

arrow-array/src/array/union_array.rs:315–320

Returns the [`UnionFields`] for the union.

(&self)

    /// Returns the [`UnionFields`] for the union.
    pub fn fields(&self) -> &UnionFields {
        match self.data_type() {
            DataType::Union(fields, _) => fields,
            _ => unreachable!("Union array's data type is not a union!"),
        }
    }

    /// Returns whether the `UnionArray` is dense (or sparse if `false`).
    pub fn is_dense(&self) -> bool {