dabla opened a new pull request, #51391:
URL: https://github.com/apache/airflow/pull/51391
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[AIP-88](https://cwiki.apache.org/confluence/pages/viewpage.action?pageId=334760511)
allows triggerers to yield and have the scheduler/process handle multiple
events in a single trigger run, enabling true streamable dynamic task mapping
for async operators (e.g., HttpOperator/MSGraphAsyncOperator). This reduces
repeated context switching and "ping-pong" between scheduler → worker →
triggerer, enabling efficient in-trigger pagination and lazy task expansion.
To be able to complete this PR, I first need the the [Fix rendering of
template fields with start from
trigger](https://github.com/apache/airflow/pull/55068) PR to be merged, once
that one is merged I can finish this one as it heavily depends on the
start_from_trigger mechanism which was broken and temporarily disabled.
Current implementation:
<img width="430" height="355" alt="image"
src="https://github.com/user-attachments/assets/6b5e6c23-a3ed-4316-8187-34826bdffc46";
/>
New improved mechanism:
<img width="404" height="411" alt="image"
src="https://github.com/user-attachments/assets/fd2595d8-00de-4de1-94f8-57fb5124d16c";
/>
https://www.youtube.com/watch?v=mWUAk-Gwmws
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