Commits
Rok authored and Antoine Pitrou committed b24cff96594
ARROW-10403: [C++] Implement unique kernel for non-uniform chunked dictionary arrays See [ARROW-10403](https://issues.apache.org/jira/browse/ARROW-10403) and [ARROW-9132](https://issues.apache.org/jira/browse/ARROW-9132). Closes #9683 from rok/ARROW-10403 Lead-authored-by: Rok <rok@mihevc.org> Co-authored-by: Antoine Pitrou <antoine@python.org> Signed-off-by: Antoine Pitrou <antoine@python.org>