AIP-76: Consume task-emitted partition keys on asset events#66782
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AIP-76: Consume task-emitted partition keys on asset events#66782anishgirianish wants to merge 4 commits into
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Hi @Lee-W, thank you so much for the review. I have addressed the feedback in the latest push. I would like to request you for your re-review whenever you get a chance. Thank you. |
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mostly good but i'll change it to draft as this kinda blocked by the other PR
| # and the DagRun did not already have one set. This lets a task that | ||
| # discovers the partition at runtime (rather than via params) act as | ||
| # the source of truth for the DagRun-level key. | ||
| if len(runtime_pks) == 1 and ti.dag_run.partition_key is None: |
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I'm still thinking whether it's the best way 🤔 but we can keep it for now. I'll create an issue these days and we can discuss there
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Sounds good, thank you! Happy to discuss on the issue whenever you open it.
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Was generative AI tooling used to co-author this PR?
Tasks can record per-emission partition keys via outlet_events[asset].add_partitions(...) (shipped in #65447).
Persist each on the matching AssetEvent row, fanning runtime fan-out emissions into one event per key, and back-fill
DagRun.partition_key when the task emitted exactly one key on a run that had none.
closes: #58474
related: #44146 #65300
cc @Lee-W
{pr_number}.significant.rst, in airflow-core/newsfragments. You can add this file in a follow-up commit after the PR is created so you know the PR number.