Function pack_dictionary

parquet/src/arrow/array_reader/primitive_array.rs:423–428

(key: &ArrowType, values: &dyn Array)

}

fn pack_dictionary(key: &ArrowType, values: &dyn Array) -> Result<ArrayRef> {
    downcast_integer! {
        key => (pack_dictionary_helper, values),
        _ => unreachable!("Invalid key type"),
    }
}

fn pack_dictionary_impl<K: ArrowDictionaryKeyType, V: ArrowPrimitiveType>(
    values: &PrimitiveArray<V>,