Comment 2 for bug 1827363

In the second case, the filters are hard coded, and not limit is used. I think it's safe not to handle that.

In the first case, ironically, the only place that seems to use that _get_ports_query method is the function in the second case, and the method in ML2plugin is also calling its parent in db_base, handled in the first patch. So we are handling limit in many places even if the usage of that method seems so ... limited.