Round the logical_date to day for ExternalTaskSensor

[ying-w]

When using ExternalTaskSensor it's doing a lookup on logical_date (datetime)

ExternalTaskSensor -> WorkflowTrigger

https://github.com/apache/airflow/blob/2.9.0/airflow/sensors/external_task.py#L352

WorkflowTrigger -> _get_count

https://github.com/apache/airflow/blob/2.9.0/airflow/triggers/external_task.py#L125

_get_count queries for execution_date

https://github.com/apache/airflow/blob/2.9.0/airflow/utils/sensor_helper.py#L93

Would it be possible to have a floor the datetime on day or hour

The use case I have is when a manual run is done (rather than re-running failed run) the lookup will fail. Since I know the runs are daily, as long as there has been a successful run on that day it would be good enough.

[potiuk]

You can always extend the class and replace the logic that is there with your own logic (and if you find it working well contribute it back as an option for the built-in operator). Airflow is pretty extensible - in the sense, that writing your custom operator is as easy as writing the DAG because it's all Python - so if you need something that is not implemented in the "airflow" class - extending and modifying it and eventually contributing back when it's a generic solution that others might get useful is the standard way to go.