amoghrajesh commented on PR #69524:
URL: https://github.com/apache/airflow/pull/69524#issuecomment-4911350019
Good point @vincbeck, and you arre right that its ambiguous as written.
`self.deferrable` here cannot tell the difference between "the user wrote
deferrable=True" and "the environment's default_deferrable config resolved it
to True", both look identical by the time `__init__` runs.
I thought about fixing that distinction (e.g. defaulting deferrable to None
and only warning when it was explicitly passed), but that pattern `deferrable:
bool = conf.getboolean("operators", "default_deferrable", fallback=False)` is
used identically across ~100 other operators just in this provider. Making
`RedshiftDataOperator` behave differently from all of them felt like a bigger,
more invasive change than this PR should make just to add a courtesy warning.
So I plan to rather keep this scoped to what it is: a heads up for the
common case of someone writing this contradiction directly. If an environment
sets `default_deferrable=True` globally and also uses
`wait_for_completion=False` a lot, yes, they'll see this warning but I'd like
to argue that is not entirely wrong either: it is accurate information that
their environment wide default is a no-op for those tasks.
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