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@@ -77,7 +77,9 @@ the following preparations into account.
- Ensure `db/structure.sql` is updated.
- Make migrations reversible by using the `change` method or include a `down` method when using `up`.
- Include either a rollback procedure or describe how to rollback changes.
-- Add the output of the migration(s) to the MR description.
+- Add the output of both migrating and rolling back for all migrations into the MR description
+ - Ensure the down method reverts the changes in `db/structure.sql`
+ - Update the migration output whenever you modify the migrations during the review process
- Add tests for the migration in `spec/migrations` if necessary. See [Testing Rails migrations at GitLab](testing_guide/testing_migrations_guide.md) for more details.
- When [high-traffic](https://gitlab.com/gitlab-org/gitlab/-/blob/master/rubocop/migration_helpers.rb#L12) tables are involved in the migration, use the [`with_lock_retries`](migration_style_guide.md#retry-mechanism-when-acquiring-database-locks) helper method. Review the relevant [examples in our documentation](migration_style_guide.md#examples) for use cases and solutions.
- Ensure RuboCop checks are not disabled unless there's a valid reason to.