Correctly select DagRun.execution_date from db

[uranusjr]

The importance of test coverage and type annotations…

[ephraimbuddy]

Suggested change

	.limit(1)
	.scalar()
	.scalar()

I think using only .scalar() is enough.

[uranusjr]

Docs say scalar() fails if there’s more than one row

https://docs.sqlalchemy.org/en/14/orm/query.html#sqlalchemy.orm.Query.scalar

[kaxil]

Curious why you went with limit instead of first ?

https://docs.sqlalchemy.org/en/14/orm/query.html#sqlalchemy.orm.Query.first

[uranusjr]

I think first() would require unpacking the returning tuple manually? This feels slightly easier to read for me than

min_date_row = session.query(...).first()
if min_date_row is None:
    ...
min_date = min_date_row[0]

[github-actions]

The PR most likely needs to run full matrix of tests because it modifies parts of the core of Airflow. However, committers might decide to merge it quickly and take the risk. If they don't merge it quickly - please rebase it to the latest main at your convenience, or amend the last commit of the PR, and push it with --force-with-lease.