Tear out current room & user statistics (#5880)

* Tear out current room & user statistics.

Signed-off-by: Olivier Wilkinson (reivilibre) <olivier@librepush.net>

* Black is back with more linting complaints

Signed-off-by: Olivier Wilkinson (reivilibre) <olivier@librepush.net>

1 files changed, 33 insertions, 0 deletions

diff --git a/synapse/storage/schema/delta/56/stats_separated1.sql b/synapse/storage/schema/delta/56/stats_separated1.sql
new file mode 100644
index 0000000000..5b125d17b0
--- /dev/null
+++ b/synapse/storage/schema/delta/56/stats_separated1.sql
@@ -0,0 +1,33 @@
+/* Copyright 2018 New Vector Ltd
+ * Copyright 2019 The Matrix.org Foundation C.I.C.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+
+----- First clean up from previous versions of room stats.
+
+-- First remove old stats stuff
+DROP TABLE IF EXISTS room_stats;
+DROP TABLE IF EXISTS user_stats;
+DROP TABLE IF EXISTS room_stats_earliest_tokens;
+DROP TABLE IF EXISTS _temp_populate_stats_position;
+DROP TABLE IF EXISTS _temp_populate_stats_rooms;
+DROP TABLE IF EXISTS stats_stream_pos;
+
+-- Unschedule old background updates if they're still scheduled
+DELETE FROM background_updates WHERE update_name IN (
+    'populate_stats_createtables',
+    'populate_stats_process_rooms',
+    'populate_stats_cleanup'
+);