create_schema

# File activerecord/lib/active_record/connection_adapters/postgresql/schema_statements.rb, line 256
        def create_schema(schema_name, force: nil, if_not_exists: nil)
          if force && if_not_exists
            raise ArgumentError, "Options `:force` and `:if_not_exists` cannot be used simultaneously."
          end

          if force
            drop_schema(schema_name, if_exists: true)
          end

          execute("CREATE SCHEMA#{' IF NOT EXISTS' if if_not_exists} #{quote_schema_name(schema_name)}")
        end