ashb commented on a change in pull request #17451:
URL: https://github.com/apache/airflow/pull/17451#discussion_r684097826
##########
File path: docs/apache-airflow/templates-ref.rst
##########
@@ -105,14 +105,35 @@ For example, you could use expressions in your templates
like ``{{ conn.my_conn_
Just like with ``var`` it's possible to fetch a connection by string (e.g.
``{{ conn.get('my_conn_id_'+index).host }}``
) or provide defaults (e.g ``{{ conn.get('my_conn_id', {"host": "host1",
"login": "user1"}).host }}``)
+Filters
+-------
+
+Airflow defines the some Jinja filters that can be used to format values.
+
+For example, using ``{{ execution_date | ds }}`` will output the
execution_date in the ``YYYY-MM-DD`` format.
+
+===================== ============
==================================================================
+Filter Operates on Description
+===================== ============
==================================================================
+``ds`` datetime Format the datetime as ``YYYY-MM-DD``
+``ds_no_dash`` datetime Format the datetime as ``YYYYMMDD``
+``ts`` datetime Same as ``.isoformat()``, Example:
``2018-01-01T00:00:00+00:00``
+``ts_no_dash`` datetime Same as ``ts`` filter without ``-``,
``:`` or TimeZone info.
+ Example: ``20180101T000000``
+``ts_nodash_with_tz`` datetime As ``ts`` filter without ``-`` or ``:``.
Example
+ ``20180101T000000+0000``
+===================== ============
==================================================================
Review comment:
```suggestion
====================== ============
==================================================================
Filter Operates on Description
====================== ============
==================================================================
``ds`` datetime Format the datetime as ``YYYY-MM-DD``
``ds_no_dash`` datetime Format the datetime as ``YYYYMMDD``
``ts`` datetime Same as ``.isoformat()``, Example:
``2018-01-01T00:00:00+00:00``
``ts_no_dash`` datetime Same as ``ts`` filter without ``-``,
``:`` or TimeZone info.
Example: ``20180101T000000``
``ts_nod|ash_with_tz`` datetime As ``ts`` filter without ``-`` or
``:``. Example
``20180101T000000+0000``
====================== ============
==================================================================
```
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