Wouldn't this create an undefined state when determining whether an index is valid or not? https://github.com/apache/arrow/blob/8d76312dd397ebe07b71531f6d23b8caa76703dc/cpp/src/arrow/array/array_base.h#L58
On Thu, Dec 17, 2020 at 12:28 PM Antoine Pitrou <anto...@python.org> wrote: > > This doesn't seem to be very useful. Also, multiplying special cases > makes maintenance more difficult and code generally more fragile. > > Regards > > Antoine. > > > Le 17/12/2020 à 18:16, Niranda Perera a écrit : > > yes! a buffer with size 0. I forgot to mention that the rest of the > buffers > > in array_data have a non-zero size. > > > > On Thu, Dec 17, 2020 at 12:12 PM Antoine Pitrou <anto...@python.org> > wrote: > > > >> > >> What is an "empty buffer" here? A buffer with size 0? > >> > >> > >> Le 17/12/2020 à 18:02, Niranda Perera a écrit : > >>> Hi all, > >>> > >>> I am wondering if we need to consider the case of an empty buffer for > >>> ArrayData validity buffer. > >>> What happens when we create an ArrayData structure with buffers[0] = > >>> empty_buffer and null_count= -1? > >>> Shouldn't this infer null_count as 0 from this method? > >>> > >> > https://github.com/apache/arrow/blob/6c3547347e9d95f7d0c77d5949cb8fcf6983ca9b/cpp/src/arrow/array/data.cc#L50 > >>> > >> > > > > > -- Niranda Perera @n1r44 <https://twitter.com/N1R44> +1 812 558 8884 / +94 71 554 8430 https://www.linkedin.com/in/niranda
