Function as_dictionary_array

datafusion/common/src/cast.rs:163–167

Downcast Array to DictionaryArray

(
    array: &dyn Array,
)

// Downcast Array to DictionaryArray
pub fn as_dictionary_array<T: ArrowDictionaryKeyType>(
    array: &dyn Array,
) -> Result<&DictionaryArray<T>> {
    Ok(downcast_value!(array, DictionaryArray, T))
}

// Downcast Array to GenericBinaryArray
pub fn as_generic_binary_array<T: OffsetSizeTrait>(