# Pastebin 1DaHM5Lr
Author: Ann Kamyshnikova <akamyshnikova@mirantis.com>
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.