Commits
David Li authored 1564339f030
ARROW-13311: [C++][Documentation] Document hash aggregate kernels This adds a section about hash aggregates. Also, adds Kleene logic to the hash any/all kernels. Closes #10887 from lidavidm/arrow-13311 Lead-authored-by: David Li <li.davidm96@gmail.com> Co-authored-by: Antoine Pitrou <antoine@python.org> Signed-off-by: David Li <li.davidm96@gmail.com>