parquet::arrow::buffer::dictionary_buffer

Function pack_values_from_offsets_impl

fn pack_values_from_offsets_impl<K: ArrowDictionaryKeyType, V: OffsetSizeTrait>(
    offset_buffer: &OffsetBuffer<V>,
    hashes: &[u64],
    null_buffer: Option<Buffer>,
    key_type: &DataType,
    value_type: &DataType,
) -> Result<ArrayRef>

Expand description

Builds a [DictionaryArray] directly from a flat OffsetBuffer using pre-computed hashes to deduplicate values in a single pass, avoiding the intermediate StringArray materialization

pack_values_from_offsets_impl

Function pack_values_from_offsets_impl Copy item path

Function pack_values_from_offsets_impl