Method is_nullable

arrow-array/src/array/dictionary_array.rs:782–784

(&self)

    }

    fn is_nullable(&self) -> bool {
        !self.is_empty() && (self.nulls().is_some() || self.values.is_nullable())
    }

    fn get_buffer_memory_size(&self) -> usize {
        self.keys.get_buffer_memory_size() + self.values.get_buffer_memory_size()