Support multiple MySQL/MariaDB connection resource and database #2
Description
This will break legacy connection struct and any existing services should be upgraded.
This time we encounter something new, when we have more than one database and it is accessed by one service, and for example we also have to connect to another server.
However, currently we can only connect to 1 server with 1 database.
Of course, these other connections will be handled manually and we see that this technique is not practical.
Therefore, we need to change the configuration structure and how to ensure that the engine can support dynamic resources