kaxil edited a comment on issue #10876:
URL: https://github.com/apache/airflow/issues/10876#issuecomment-703083956
@wolfier If you change the DAG as follows, it will work:
```python
from datetime import datetime
from airflow.models import DAG
from airflow.contrib.operators.bigquery_operator import BigQueryOperator
dag = DAG(
dag_id='my_dag',
schedule_interval='@once',
start_date=datetime(2020, 1, 1)
)
test = BigQueryOperator(
sql="asdsa", # Notice removal of list when just using a single query
task_id='test2',
dag=dag
)
```
i.e. if you are just passing a single query, just pass it as string instead
of a list
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