Add missing ordering to background updates (#8850)

It's important that we make sure our background updates happen in a defined
order, to avoid disasters like #6923.

Add an ordering to all of the background updates that have landed since #7190.

changelog.d/8850.misc

@@ -0,0 +1 @@
+Add missing `ordering` to background database updates.

synapse/storage/databases/main/schema/delta/58/07add_method_to_thumbnail_constraint.sql.postgres

@@ -20,14 +20,14 @@
  */
 
 -- add new index that includes method to local media
-INSERT INTO background_updates (update_name, progress_json) VALUES
-  ('local_media_repository_thumbnails_method_idx', '{}');
+INSERT INTO background_updates (ordering, update_name, progress_json) VALUES
+  (5807, 'local_media_repository_thumbnails_method_idx', '{}');
 
 -- add new index that includes method to remote media
-INSERT INTO background_updates (update_name, progress_json, depends_on) VALUES
-  ('remote_media_repository_thumbnails_method_idx', '{}', 'local_media_repository_thumbnails_method_idx');
+INSERT INTO background_updates (ordering, update_name, progress_json, depends_on) VALUES
+  (5807, 'remote_media_repository_thumbnails_method_idx', '{}', 'local_media_repository_thumbnails_method_idx');
 
 -- drop old index
-INSERT INTO background_updates (update_name, progress_json, depends_on) VALUES
-  ('media_repository_drop_index_wo_method', '{}', 'remote_media_repository_thumbnails_method_idx');
+INSERT INTO background_updates (ordering, update_name, progress_json, depends_on) VALUES
+  (5807, 'media_repository_drop_index_wo_method', '{}', 'remote_media_repository_thumbnails_method_idx');
 

synapse/storage/databases/main/schema/delta/58/12room_stats.sql

@@ -28,5 +28,5 @@
 -- functionality as the old one. This effectively restarts the background job
 -- from the beginning, without running it twice in a row, supporting both
 -- upgrade usecases.
-INSERT INTO background_updates (update_name, progress_json) VALUES
-    ('populate_stats_process_rooms_2', '{}');
+INSERT INTO background_updates (ordering, update_name, progress_json) VALUES
+    (5812, 'populate_stats_process_rooms_2', '{}');

synapse/storage/databases/main/schema/delta/58/22users_have_local_media.sql

@@ -1,2 +1,2 @@
-INSERT INTO background_updates (update_name, progress_json) VALUES
-  ('users_have_local_media', '{}');
+INSERT INTO background_updates (ordering, update_name, progress_json) VALUES
+  (5822, 'users_have_local_media', '{}');

synapse/storage/databases/main/schema/delta/58/23e2e_cross_signing_keys_idx.sql

@@ -13,5 +13,5 @@
  * limitations under the License.
  */
 
-INSERT INTO background_updates (update_name, progress_json) VALUES
-  ('e2e_cross_signing_keys_idx', '{}');
+INSERT INTO background_updates (ordering, update_name, progress_json) VALUES
+  (5823, 'e2e_cross_signing_keys_idx', '{}');