http://dacxzjk3kq5mmepbdd3ai2ifynlzxsnpl2cnkfhridqfywihrfftapid.onion/help/update/background_migrations.md
To see details on incomplete batched background migrations, run this query in
the psql session:
SELECT
job_class_name ,
table_name ,
column_name ,
job_arguments
FROM batched_background_migrations
WHERE status NOT IN ( 3 , 6 );
Alternatively, you can wrap the query with gitlab-psql -c "<QUERY>" to check the status of
batched background migrations:
gitlab-psql -c "SELECT job_class_name, table_name, column_name, job_arguments...