Comment 0 for bug 1818318

Filtering network by "dns_domain" (http://neutron/v2.0/networks?dns_domain=foo) returns:

in_() not yet supported for relationships. For a simple many-to-one, use in_() against the set of foreign key values.

However ports filtering by dns_name works fine:

http://neutron/v2.0/ports?dns_name=bar

I haven't managed to clarify why.