Commits
Wes McKinney authored 6df862096c7
ARROW-9222: [Format] Columnar.rst changes for removing validity bitmap from union types See mailing list discussion. Closes #7535 from wesm/union-no-validity Authored-by: Wes McKinney <wesm@apache.org> Signed-off-by: Wes McKinney <wesm@apache.org>