SUGGESTION: Merge MariaDB 10.1 Columnstore Compatible and MariaDB 10.3

In order to:

• Make optimal use of economical resources, by avoiding parallel distributions of MariaDB Server (parallel testings, parallel pull requests, etc.)
• Make an easier Columnstore Engine Installation & Configuration, without the need of a clean installation of MariaDB Server, to back-up existing data and data restore.

I would suggest that the specific modifications that have been introduced in MariaDB 10.1.26 Server for enabling it for the use of Columnstore Engine are merged with the main distribution of MariaDB 10.3:

• MariaDB Columnstore Server Github
• MariaDB Server Github