Parser does not recognize virtual columns definitions of the form
<type> [GENERATED ALWAYS] AS ( <expression> )
[VIRTUAL | PERSISTENT] [UNIQUE] [UNIQUE KEY] [COMMENT
MariaDB does not provide (at least I couldn't find) a way to get <expression> for a table. Neither information_schema, nor DESCRIBE table
provide this information and the only way is to parse the output of SHOW CREATE TABLE
Reference: https://mariadb.com/kb/en/mariadb/virtual-computed-columns/
Assigning to Marc since a parser rewrite is planned for this year's GSoC mentored by Marc.
See also https://sourceforge.net/p/phpmyadmin/feature-requests/1517/