Function single_null_buffer

datafusion/physical-expr-common/src/binary_map.rs:555–562

Returns a `NullBuffer` with a single null value at the given index

(num_values: usize, null_index: usize)

/// Returns a `NullBuffer` with a single null value at the given index
fn single_null_buffer(num_values: usize, null_index: usize) -> NullBuffer {
    let mut null_builder = NullBufferBuilder::new(num_values);
    null_builder.append_n_non_nulls(null_index);
    null_builder.append_null();
    null_builder.append_n_non_nulls(num_values - null_index - 1);
    // SAFETY: inner builder must be constructed
    null_builder.finish().unwrap()
}

impl<O: OffsetSizeTrait, V> Debug for ArrowBytesMap<O, V>
where