vincbeck opened a new pull request, #38972:
URL: https://github.com/apache/airflow/pull/38972
#38715 introduced a bug when the parameter `rows` is a generator. In that
case, the method raises this error:
```
ERROR [airflow.task] Task failed with exception
Traceback (most recent call last):
File "/opt/airflow/airflow/models/taskinstance.py", line 478, in
_execute_task
result = _execute_callable(context=context, **execute_callable_kwargs)
File "/opt/airflow/airflow/models/taskinstance.py", line 441, in
_execute_callable
return ExecutionCallableRunner(
File "/opt/airflow/airflow/utils/operator_helpers.py", line 250, in run
return self.func(*args, **kwargs)
File "/opt/airflow/airflow/models/baseoperator.py", line 405, in wrapper
return func(self, *args, **kwargs)
File "/opt/airflow/airflow/providers/amazon/aws/transfers/s3_to_sql.py",
line 115, in execute
self.db_hook.insert_rows(
File "/opt/airflow/airflow/providers/common/sql/hooks/sql.py", line 597,
in insert_rows
self.log.info("Done loading. Loaded a total of %s rows into %s",
len(rows), table)
TypeError: object of type 'generator' has no len()
```
Our system test `example_s3_to_sql` is failing because of that.
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