diff --git a/changelog.d/12967.removal b/changelog.d/12967.removal
new file mode 100644
index 0000000000..0aafd6a4d9
--- /dev/null
+++ b/changelog.d/12967.removal
@@ -0,0 +1 @@
+Drop tables used for groups/communities.
diff --git a/synapse/_scripts/synapse_port_db.py b/synapse/_scripts/synapse_port_db.py
index 26834a437e..543bba27c2 100755
--- a/synapse/_scripts/synapse_port_db.py
+++ b/synapse/_scripts/synapse_port_db.py
@@ -166,22 +166,6 @@ IGNORED_TABLES = {
"ui_auth_sessions",
"ui_auth_sessions_credentials",
"ui_auth_sessions_ips",
- # Groups/communities is no longer supported.
- "group_attestations_remote",
- "group_attestations_renewals",
- "group_invites",
- "group_roles",
- "group_room_categories",
- "group_rooms",
- "group_summary_roles",
- "group_summary_room_categories",
- "group_summary_rooms",
- "group_summary_users",
- "group_users",
- "groups",
- "local_group_membership",
- "local_group_updates",
- "remote_profile_cache",
}
diff --git a/synapse/storage/schema/__init__.py b/synapse/storage/schema/__init__.py
index dc237e3032..a9a88c8bfd 100644
--- a/synapse/storage/schema/__init__.py
+++ b/synapse/storage/schema/__init__.py
@@ -74,13 +74,14 @@ Changes in SCHEMA_VERSION = 71:
Changes in SCHEMA_VERSION = 72:
- event_edges.(room_id, is_state) are no longer written to.
+ - Tables related to groups are dropped.
"""
SCHEMA_COMPAT_VERSION = (
- # We no longer maintain `event_edges.room_id`, so synapses with SCHEMA_VERSION < 71
- # will break.
- 71
+ # The groups tables are no longer accessible, so synapses with SCHEMA_VERSION < 72
+ # could break.
+ 72
)
"""Limit on how far the synapse codebase can be rolled back without breaking db compat
diff --git a/synapse/storage/schema/main/delta/72/03remove_groups.sql b/synapse/storage/schema/main/delta/72/03remove_groups.sql
new file mode 100644
index 0000000000..b7c5894de8
--- /dev/null
+++ b/synapse/storage/schema/main/delta/72/03remove_groups.sql
@@ -0,0 +1,31 @@
+/* Copyright 2022 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.
+ */
+
+-- Remove the tables which powered the unspecced groups/communities feature.
+DROP TABLE IF EXISTS group_attestations_remote;
+DROP TABLE IF EXISTS group_attestations_renewals;
+DROP TABLE IF EXISTS group_invites;
+DROP TABLE IF EXISTS group_roles;
+DROP TABLE IF EXISTS group_room_categories;
+DROP TABLE IF EXISTS group_rooms;
+DROP TABLE IF EXISTS group_summary_roles;
+DROP TABLE IF EXISTS group_summary_room_categories;
+DROP TABLE IF EXISTS group_summary_rooms;
+DROP TABLE IF EXISTS group_summary_users;
+DROP TABLE IF EXISTS group_users;
+DROP TABLE IF EXISTS groups;
+DROP TABLE IF EXISTS local_group_membership;
+DROP TABLE IF EXISTS local_group_updates;
+DROP TABLE IF EXISTS remote_profile_cache;
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