diff --git a/synapse/storage/schema/main/delta/73/22_un_partial_stated_event_stream.sql b/synapse/storage/schema/main/delta/73/22_un_partial_stated_event_stream.sql
new file mode 100644
index 0000000000..0e571f78c3
--- /dev/null
+++ b/synapse/storage/schema/main/delta/73/22_un_partial_stated_event_stream.sql
@@ -0,0 +1,34 @@
+/* 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.
+ */
+
+-- Stream for notifying that an event has become un-partial-stated.
+CREATE TABLE un_partial_stated_event_stream(
+ -- Position in the stream
+ stream_id BIGINT PRIMARY KEY NOT NULL,
+
+ -- Which instance wrote this entry.
+ instance_name TEXT NOT NULL,
+
+ -- Which event has been un-partial-stated.
+ event_id TEXT NOT NULL REFERENCES events(event_id) ON DELETE CASCADE,
+
+ -- true iff the `rejected` status of the event changed when it became
+ -- un-partial-stated.
+ rejection_status_changed BOOLEAN NOT NULL
+);
+
+-- We want an index here because of the foreign key constraint:
+-- upon deleting an event, the database needs to be able to check here.
+CREATE UNIQUE INDEX un_partial_stated_event_stream_room_id ON un_partial_stated_event_stream (event_id);
diff --git a/synapse/storage/schema/main/delta/73/23_un_partial_stated_room_stream_seq.sql.postgres b/synapse/storage/schema/main/delta/73/23_un_partial_stated_room_stream_seq.sql.postgres
new file mode 100644
index 0000000000..1ec24702f3
--- /dev/null
+++ b/synapse/storage/schema/main/delta/73/23_un_partial_stated_room_stream_seq.sql.postgres
@@ -0,0 +1,20 @@
+/* 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.
+ */
+
+CREATE SEQUENCE IF NOT EXISTS un_partial_stated_event_stream_sequence;
+
+SELECT setval('un_partial_stated_event_stream_sequence', (
+ SELECT COALESCE(MAX(stream_id), 1) FROM un_partial_stated_event_stream
+));
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