Function polars::export::arrow::compute::cast::utf8_to_dictionary

pub fn utf8_to_dictionary<O, K>(
    from: &Utf8Array<O>
) -> Result<DictionaryArray<K>, ArrowError> where
    O: Offset,
    K: DictionaryKey, 

This is supported on crate feature compute_cast only.

Cast Utf8Array to DictionaryArray, also known as packing.

Errors

This function errors if the maximum key is smaller than the number of distinct elements in the array.