Merge ~cjwatson/launchpad:merge-db-stable into launchpad:master

[Colin Watson]

Merge db-stable 1b199484b3 (GitRepository repack thresholds)

[Colin Watson (cjwatson)]

Deployed to the production database today.

review: Approve

diff --git a/database/schema/patch-2210-25-0.sql b/database/schema/patch-2210-25-0.sql
 new file mode 100644
index 0000000..7397939
--- /dev/null
+++ b/database/schema/patch-2210-25-0.sql
@@ -0,0 +1,15 @@
+-- Copyright 2021 Canonical Ltd.  This software is licensed under the
+-- GNU Affero General Public License version 3 (see the file LICENSE).
+
+SET client_min_messages=ERROR;
+
+ALTER TABLE GitRepository
+    ADD COLUMN loose_object_count integer,
+    ADD COLUMN pack_count integer,
+    ADD COLUMN date_last_repacked timestamp without time zone,
+    ADD COLUMN date_last_scanned timestamp without time zone;
+
+COMMENT ON COLUMN GitRepository.date_last_scanned IS 'The datetime that packs and loose_objects were last updated for this repository.';
+COMMENT ON COLUMN GitRepository.date_last_repacked IS 'The datetime that the last repack request was executed successfully on Turnip.';
+
+INSERT INTO LaunchpadDatabaseRevision VALUES (2210, 25, 0);