module Semian::Mysql2

def semian_identifier
  @semian_identifier ||= begin
    name = semian_options && semian_options[:name]
    unless name
      host = query_options[:host] || DEFAULT_HOST
      port = query_options[:port] || DEFAULT_PORT
      name = "#{host}:#{port}"
    end
    :"mysql_#{name}"
  end
end