uranusjr commented on code in PR #28191:
URL: https://github.com/apache/airflow/pull/28191#discussion_r1049260185
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airflow/models/xcom.py:
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@@ -723,6 +723,20 @@ def __eq__(self, other: Any) -> bool:
return all(x == y for x, y in z)
return NotImplemented
+ def __getstate__(self) -> Any:
+ # We don't want to get into the trouble to pickle the entire SQLAlchemy
Review Comment:
Ah, the root issue here is that SQLAlchemy objects don’t pickle well out of
the box, so the big effort comes from we need to implement _custom logic_ for
every thing in a SQLAlchemy query (e.g. filters, order_bys, hints). I’ll add
this to the comments to clarify.
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