ephraimbuddy opened a new pull request, #63925:
URL: https://github.com/apache/airflow/pull/63925

   Speed up migration 0094 (deadline inline callback → foreign key) for 
installations with millions of deadline rows. Uses a temporary batch table for 
deterministic batching and a minimal, migration-only serde instead of full 
deserialization, avoiding Task SDK and user code.
   
   Validated with 10.7M rows migrating in ~24 minutes.
   
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   ##### Was generative AI tooling used to co-author this PR?
   
   - [x] Yes (please specify the tool below)
   composer 1.5 on cursor
   


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