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build_dictionary_array

parquet::arrow::buffer::dictionary_buffer

Function build_dictionary_array 

Source 
fn build_dictionary_array(
    key_type: &DataType,
    keys_buffer: Buffer,
    num_keys: usize,
    null_buffer: Option<NullBuffer>,
    values: ArrayRef,
) -> Result<ArrayRef>
Expand description

Build a dictionary array from a raw keys buffer and an already-decoded values ArrayRef, skipping the ArrayData round-trip.