This section number is included for the purpose of referring to KRS 90.400(2)(b) which, paraphrased, provides that the adoption of an ordinance creating a pension fund, followed by acceptance from employees of a portion of their wages, and the levying of a tax, creates an inviolable contract between the city and its employees; and they shall continue to operate under civil service, even a repeal of the ordinance not affecting the employees without their consent.