Hi team, I just merged https://github.com/apache/airflow/pull/68261 which should drop CI run time (where it runs all tests) by 50% from ~62 min to ~29 mins in the case of MySQL. But same applies for Postgres & Sqlite.
The motivation was that our MySQL tests were timing out on some PRs because it took more than 60 mins. While there is still room for improvement and I'd like the time to decrease further, we need to be careful not to unintentionally lose test isolation. *It doesn't apply for all PRs that are filtered by selective checks - example a Yandex provider change. So they might not see these improvements. Regards, Kaxil
