It seems the plugin only works with MySQL/MariaDB. Trying to install results in the following error:
Caused by:
ActiveRecord::StatementInvalid: PG::UndefinedObject: ERROR: type "mediumtext" does not exist
LINE 1: ...LE "rb_issue_history" ALTER COLUMN "history" TYPE mediumtext
It seems the plugin only works with MySQL/MariaDB. Trying to install results in the following error: