def get_use_db_conn_spec(options)
    options.symbolize_keys
    suffix = options.delete(:suffix)
    prefix = options.delete(:prefix)
    rails_env = options.delete(:rails_env) || RAILS_ENV
    connection_options = options
    if (connection_options[:adapter])
      return connection_options
    else
      str = "#{prefix}#{rails_env}#{suffix}"
      connections = YAML.load(File.read "#{RAILS_ROOT}/config/database.yml")
      raise "Cannot find database specification.  Configuration '#{str}' expected in config/database.yml" if (connections[str].nil?)
      connection_options = connections[str]
    end
    connection_options.merge(options.stringify_keys)
  end