pub fn garbage_collect_dictionary<K: ArrowDictionaryKeyType>(
dictionary: &DictionaryArray<K>,
) -> Result<DictionaryArray<K>, ArrowError>Expand description
Garbage collects a [DictionaryArray] by removing unreferenced values.
Returns a new [DictionaryArray] such that there are no values that are not referenced by at least one key. There may still be duplicate values.
See also garbage_collect_any_dictionary if you need to handle multiple dictionary types