create table optimize_requests (
  colors integer not null,
  customers integer not null,
  demands 
);
comment on table optimize_requests is '
  paint batch optimizer request
';

comment on column optimize_requests.colors is '
  number of different colours demanded by paint factory
';
comment on column optimize_requests.customers is '
  number of customers
';
comment on column optimize_requests.demands is '
  customers paint demands
';