Airflow Xcom «480p 2026»

@dag(schedule_interval='@daily', start_date=datetime(2023, 1, 1), catchup=False) def my_taskflow_dag():

metadata database (SQLAlchemy-backed). While this makes data retrieval seamless, it also introduces a critical constraint: XComs are not designed for "big data." Because the information lives in the relational database, passing multi-gigabyte DataFrames can lead to severe performance degradation or database crashes. Evolution: From Manual to TaskFlow In earlier versions of Airflow, users had to explicitly call airflow xcom