nathadfield commented on code in PR #67285:
URL: https://github.com/apache/airflow/pull/67285#discussion_r3332873644
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airflow-core/docs/authoring-and-scheduling/assets.rst:
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@@ -623,7 +623,9 @@ partition match can be produced, so the downstream Dag is
not triggered for
that key.
Inside partitioned Dag runs, access the resolved partition through
-``dag_run.partition_key``.
+``dag_run.partition_key``. For date-shaped partitions, the underlying
+``datetime`` is also available as ``dag_run.partition_date``, so
+templates can use ``{{ partition_date | ds }}``.
Review Comment:
Thanks @kaxil. "date-shaped" was misleading; the gating is on the mapper
class, not the shape of the output. Updated `assets.rst` to name the mappers
that populate `partition_date` (`IdentityMapper`, `StartOf*Mapper`) and the
ones that leave it `None` (`ProductMapper`, `ChainMapper`, `AllowedKeyMapper`,
custom), so consumers of those know to keep parsing `partition_key`.
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