Function polars::export::arrow::compute::cast::binary_to_dictionary

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

This is supported on crate feature compute_cast only.

Cast BinaryArray 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.