Commits
David Li authored and Antoine Pitrou committed fd47183f09a
ARROW-13913: [C++] Don't segfault if IndexOptions omitted Unlike the other aggregates, there's no default options to fall back on here. Closes #11097 from lidavidm/arrow-13913 Authored-by: David Li <li.davidm96@gmail.com> Signed-off-by: Antoine Pitrou <antoine@python.org>