MatrixManAtYrService opened a new issue, #26381:
URL: https://github.com/apache/airflow/issues/26381
### Apache Airflow version
main (development)
### What happened
Here's a simple pair of dags linked by a dataset:
```python3
from datetime import datetime
from airflow import Dataset
from airflow.operators.empty import EmptyOperator
from airflow.decorators import dag
dataset = Dataset("dataset")
@dag(start_date=datetime(1970, 1, 1))
def upstream():
EmptyOperator(task_id="empty", outlets=[dataset])
upstream()
@dag(start_date=datetime(1970, 1, 1), schedule=[dataset])
def downstream():
EmptyOperator(task_id="empty")
downstream()
```
I let airflow parse this, then I made the following edit:
```python3
d̶a̶t̶a̶s̶e̶t̶ ̶=̶ ̶D̶a̶t̶a̶s̶e̶t̶(̶"̶d̶a̶t̶a̶s̶e̶t̶"̶)̶
dataset = Dataset("dataset1")
```
I let airflow parse it again, then I made another edit:
```python3
d̶a̶t̶a̶s̶e̶t̶ ̶=̶ ̶D̶a̶t̶a̶s̶e̶t̶(̶"̶d̶a̶t̶a̶s̶e̶t̶1̶"̶)̶
dataset = Dataset("dataset2")
```
Then I viewed the datasets page:
<img width="675" alt="Screen Shot 2022-09-14 at 12 07 08 AM"
src="https://user-images.githubusercontent.com/5834582/190073533-ebd4cb54-e080-4de5-9d95-9adf3c6c0a74.png";>
Notice that instead of updating the name of the dataset, as I intended, I
ended up creating three datasets.
### What you think should happen instead
If there are no dags which reference a dataset, it should not be shown in
the dataset list
### How to reproduce
update a dataset URI
### Operating System
docker/debian
### Versions of Apache Airflow Providers
n/a
### Deployment
Astronomer
### Deployment details
`astro dev start`
### Anything else
_No response_
### Are you willing to submit PR?
- [ ] Yes I am willing to submit a PR!
### Code of Conduct
- [X] I agree to follow this project's [Code of
Conduct](https://github.com/apache/airflow/blob/main/CODE_OF_CONDUCT.md)
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