dstandish opened a new pull request, #69982:
URL: https://github.com/apache/airflow/pull/69982
Clarify the `AssetPartitionDagRun` docstring.
The previous wording ("we should not allow more than one like this") didn't
state the
actual invariant. This spells out that:
- rows are never deleted from the table, so multiple records per
`target_dag_id` / `partition_key` are expected in general (each created
dag run leaves
its record behind), and
- the real constraint is at most one row with a **null**
`created_dag_run_id` per
`target_dag_id` / `partition_key` (the outstanding provisional run), which
the
`_lock_asset_model` mutex enforces.
Docstring-only; no behavior change.
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##### Was generative AI tooling used to co-author this PR?
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