[GitHub] [airflow] turbaszek commented on a change in pull request #12741: Adds Docs to compare SubDAGs and TaskGroups

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turbaszek commented on a change in pull request #12741:
URL: https://github.com/apache/airflow/pull/12741#discussion_r533589030



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File path: docs/apache-airflow/concepts.rst
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@@ -1022,6 +1023,28 @@ This animated gif shows the UI interactions. TaskGroups are expanded or collapse
 
 .. image:: img/task_group.gif
 
+While TaskGroups and SubDAGs are both used to create repeating patterns, depending on your use case, one may be better
+than the other. The SubDagOperator launches a DAG as a separate entity from the original graph. This design pattern
+offers flexibility to create SubDAGs with different schedulers and executors at the cost of greater complexity and
+maintenance burden. TaskGroups creates a UI grouping concept on the same original DAG which simplifies logic and
+maintenance for less flexibility.

Review comment:
       How users can schedule SubDAGs using different scheduler or executor? 




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