Variable-binary types need special handling as follow up to ARROW-9075.

Reporter: Wes McKinney / @wesm
Assignee: Wes McKinney / @wesm

Related issues:

• [C++] Optimize Filter implementation (relates to)

PRs and other links:

• GitHub Pull Request #7569

_{Note: This issue was originally created as ARROW-9152. Please see the migration documentation for further details.}