Description

INET4 is available from MariaDB 10.10.

https://mariadb.com/docs/server/reference/data-types/string-data-types/inet4

Before:

After:

Fixes #20395

Before submitting pull request, please review the following checklist:

• Make sure you have read our CONTRIBUTING.md document.
• Make sure you are making a pull request against the correct branch. For example, for bug fixes in a released version use the corresponding QA branch and for new features use the master branch. If you have a doubt, you can ask as a comment in the bug report or on the mailing list.
• Every commit has proper Signed-off-by line as described in our DCO. This ensures that the work you're submitting is your own creation.
• Every commit has a descriptive commit message.
• Every commit is needed on its own, if you have just minor fixes to previous commits, you can squash them.
• Any new functionality is covered by tests.