Function datafusion::common::scalar::get_dict_value

source · 
pub fn get_dict_value<K>(
    array: &dyn Array,
    index: usize
) -> Result<(&Arc<dyn Array>, Option<usize>), DataFusionError>
where
    K: ArrowDictionaryKeyType,
Expand description

Return a reference to the values array and the index into it for a dictionary array

§Errors

Errors if the array cannot be downcasted to DictionaryArray