50,000 * 4 bytes ~= 200 kB, so this shouldn’t be a problem. Generally, large values can be a problem for some compute engines, but 200 kB isn’t that large.
> On Jan 10, 2023, at 8:22 AM, Hinko Kocevar <hinko.koce...@ess.eu> wrote: > > I would like to use ORC file to hold several columns of data. One of the > columns will be a list (array) of floats that could span 10 000 - 50 000 > elements is length. Other columns will not be lists, but of different data > types. > > Is having such long lists in any way an issue in terms of performance or > otherwise for the ORC file? > > Thank you in advance! > > //Hinko
