My repo py is structured like this

Question

max · Answer

< sashank> < prha>

sashank · Answer

And what does your `workspace yaml` look like

Cris · Answer

```load from python file repository py```

Cris · Answer

Just that it seemed to be a problem with the migration I havent managed to execute the migration correctly but it works when I used a new Postgres DB

sashank · Answer

Is this similar to what you saw <https github com dagster io dagster issues 2601>

sashank · Answer

cc < alex>

Cris · Answer

Hm not quite i had this error ```sqlalchemy exc ProgrammingError psycopg2 errors UndefinedTable relation runs does not exist SQL ALTER TABLE runs ADD COLUMN snapshot id VARCHAR 255 ```

Cris · Answer

Running the migration with this command ```$ PYTHONPATH=$PYTHONPATH $ PWD app DAGSTER HOME=~ dagster dagster home dagster instance migrate```

prha · Answer

In your `dagster yaml` is your instance configured to use the same postgres DB for runs event log and schedule storage or different DBs Has that changed recently

prha · Answer

There s an issue in one of our migration scripts but just want to make sure the fix will unblock you

Cris · Answer

In the configuration on which I tried the migration the dbs are different In production we have a single RDS instance

prha · Answer

Okay perfect we ll get a fix out for this today

Cris · Answer

Thanks I m still confused on whether the bug happens when you use multiple or single dbs

prha · Answer

The bug happens when you use multiple DBs we were missing a check to make sure that a migration only happens on the runs storage

Cris · Answer

oh I see

prha · Answer

This should be resolved in `0 8 2` Lemme know if you are still seeing issues running `dagster instance migrate`

Cris · Answer

Thanks will try