Dev-iL commented on code in PR #69150: URL: https://github.com/apache/airflow/pull/69150#discussion_r3744998351
########## airflow-core/docs/howto/set-up-database.rst: ########## @@ -276,6 +276,13 @@ If you use a current Postgres user with custom search_path, search_path can be c For more information regarding setup of the PostgreSQL connection, see `PostgreSQL dialect <https://docs.sqlalchemy.org/en/20/dialects/postgresql.html>`__ in SQLAlchemy documentation. +.. note:: + + PostgreSQL connection strings can include multiple fallback hosts. Use SQLAlchemy's documented PostgreSQL + URL format for this setup so each fallback host is passed correctly to the selected PostgreSQL driver. See + `Specifying multiple fallback hosts <https://docs.sqlalchemy.org/en/20/dialects/postgresql.html#specifying-multiple-fallback-hosts>`__ + in the SQLAlchemy documentation. Review Comment: As noted in [my comment above](https://github.com/apache/airflow/pull/69150#discussion_r3496424221), multiple hosts are supported by all the main "default" drivers (psycopg2, psycopg3 and asyncpg). I believe these SQLA docs were linked because they are the best official source (from any of the drivers) that discusses this behavior in detail, and it only _happens_ to demonstrate it using psycopg2. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
