We currently are using Airflow for ELTs/ETLs to ingest from different Postgres databases to BigQuery/Google Cloud Storage. Airbyte looks sweet for the same task and would free us from a big effort burden, but its Postgres source only supports SELECT * statements (i.e. you can't deselect columns).

That's kind of a dealbreaker for us, because for security reasons our Postgres users permissions are granularly configured with column-based security. I hope the Airbyte team solves this eventually because the software is looking great.