Commits
David Li authored and Antoine Pitrou committed c02a40f2a43
ARROW-13295: [C++] add hash_mean, hash_variance, hash_stddev kernels Note these don't use pairwise summation and so may be prone to precision issues. Closes #10792 from lidavidm/arrow-13295 Authored-by: David Li <li.davidm96@gmail.com> Signed-off-by: Antoine Pitrou <antoine@python.org>