potiuk edited a comment on pull request #9276:
URL: https://github.com/apache/airflow/pull/9276#issuecomment-644079979
> What do you mean about "not migrate the database"? As in you expect
people to start 2.0 with a clean/empty metadata DB?
I do not know what are the plans for now I do not know if it's been
discussed - the migrations are long time separated between the databases in
1.10 and 2.0 so I am not sure if there is a clear path (yet) on how to migrate
from a version of 1.10 to 2.0.
There are few paths that might be taken for that. I see at least three:
1) migrate the database on a live instance
2) create a new schema and migrate some of the data if you cannot do live DB
migration for whatever reason/
3) Clean-cut - start with Airflow 2.0 from the scratch having both - old and
new version of Airflow running for some time keeping the old installation as
"historical".
I think all of those scenarios are possible and valid, and only 1) requires
migrating to the latest Airflow before switching to 2.0.
There are pros and cons for all those scenarios and I am not sure we are
ready to make a decision on how to do it without checking with our users and
possibly listening to how they would run the migration in their environments.
I think we should discuss which of the migration paths we are going to
support from the community point of view.
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