Logically connect datasources and schemas
- what do we import?
- do we create ‘dummy’ schema entries?
- how are connection manifested?
(from redmine: issue id 505, created on 2018-01-22tgradl, closed on 2018-01-24)
(from redmine: issue id 505, created on 2018-01-22tgradl, closed on 2018-01-24)