add

# File activerecord/lib/active_record/connection_adapters/schema_cache.rb, line 326
      def add(pool, table_name)
        pool.with_connection do
          if data_source_exists?(pool, table_name)
            primary_keys(pool, table_name)
            columns(pool, table_name)
            columns_hash(pool, table_name)
            indexes(pool, table_name)
          end
        end
      end