Commits
tianchen authored and Antoine Pitrou committed 843e8bb556a
ARROW-9304: [C++] Add "AppendEmpty" builder APIs for use inside StructBuilder::AppendNull Closes #7887 from tianchen92/ARROW-9304 Lead-authored-by: tianchen <tianchen@apache.org> Co-authored-by: Antoine Pitrou <antoine@python.org> Signed-off-by: Antoine Pitrou <antoine@python.org>