easontm commented on issue #19397:
URL: https://github.com/apache/airflow/issues/19397#issuecomment-961720395
I also received this error with the following mysql packages:
```
apache-airflow-providers-mysql==2.1.1
mysql-connector-python==8.0.26
mysqlclient==2.0.3
```
Error:
```
sqlalchemy.exc.OperationalError: (MySQLdb._exceptions.OperationalError)
(1093, "You can't specify target table 'task_instance' for update in FROM
clause")
[SQL: delete from task_instance
where (task_id, dag_id, execution_date) IN (
select source.task_id, source.dag_id, source.execution_date
from task_instance as source
left join dag_run as dr
on (source.dag_id = dr.dag_id and source.execution_date =
dr.execution_date)
where dr.id is null
)
]
```
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