Comment 7 for bug 1381379

Reviewed: https://review.openstack.org/133489
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=bc34f26302faea116be7e61051c32f8787530836
Submitter: Jenkins
Branch: master

commit bc34f26302faea116be7e61051c32f8787530836
Author: Ann Kamyshnikova <email address hidden>
Date: Mon Nov 10 17:05:54 2014 +0300

    Convert all incoming protocol numbers to string

    PostgreSQL is more sensitive for types than MySQL when it selects
    something from columns in database. So it fails when it tries to
    select from string field comparing with integer value.

    Added unit test to verify conversion of protocol numbers to
    strings.

    Closes-bug:#1381379

    Change-Id: I0a29595403a07c66888871088d5549705a097f68