instance method rename_enum_value

# File activerecord/lib/active_record/connection_adapters/postgresql_adapter.rb, line 696
      def rename_enum_value(type_name, **options)
        from = options.fetch(:from) { raise ArgumentError, ":from is required" }
        to = options.fetch(:to) { raise ArgumentError, ":to is required" }

        execute("ALTER TYPE #{quote_table_name(type_name)} RENAME VALUE #{quote(from)} TO #{quote(to)}").tap {
          reload_type_map
        }
      end