Function arrow2::compute::cast::binary_to_dictionary

source · [−]
pub fn binary_to_dictionary<O: Offset, K: DictionaryKey>(
    from: &BinaryArray<O>
) -> Result<DictionaryArray<K>>
Available on crate feature compute_cast only.
Expand description

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.