what is apache airflow used for code example
Example: apache airflow
pip install apache-airflow[postgres,google]==2.0.2 --constraint "https://raw.githubusercontent.com/apache/airflow/constraints-2.0.2/constraints-3.7.txt"pip install apache-airflow[postgres,google]==2.0.2 --constraint "https://raw.githubusercontent.com/apache/airflow/constraints-2.0.2/constraints-3.7.txt"