Rename columns to valid namedtuple attributes + ensure Row.fields are retrieved as tuple#36949

potiuk merged 4 commits intoapache:mainapache/airflow:mainfrom

Joffreybvn:fix/ensure-namedtuple-fields-are-identifiersJoffreybvn/airflow:fix/ensure-namedtuple-fields-are-identifiersCopy head branch name to clipboard