Drop unused column `application_services_state.last_txn` (#13627)

changelog.d/13627.misc

+Drop unused column `application_services_state.last_txn`.

synapse/storage/schema/__init__.py

@@ -75,6 +75,7 @@ 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.
+    - Unused column application_services_state.last_txn is dropped
 """
 
 

synapse/storage/schema/main/delta/72/04drop_column_application_services_state_last_txn.sql.postgres

+/* 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.
+ */
+
+-- Drop unused column application_services_state.last_txn
+ALTER table application_services_state DROP COLUMN last_txn;
\ No newline at end of file

synapse/storage/schema/main/delta/72/04drop_column_application_services_state_last_txn.sql.sqlite

+/* 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.
+ */
+
+-- Drop unused column application_services_state.last_txn
+
+CREATE TABLE application_services_state2 (
+    as_id TEXT PRIMARY KEY NOT NULL,
+    state VARCHAR(5),
+    read_receipt_stream_id BIGINT,
+    presence_stream_id BIGINT,
+    to_device_stream_id BIGINT,
+    device_list_stream_id BIGINT
+);
+
+
+INSERT INTO application_services_state2 (
+    as_id,
+    state,
+    read_receipt_stream_id,
+    presence_stream_id,
+    to_device_stream_id,
+    device_list_stream_id
+)
+SELECT as_id, state, read_receipt_stream_id, presence_stream_id, to_device_stream_id,  device_list_stream_id
+FROM application_services_state;
+
+DROP TABLE application_services_state;
+ALTER TABLE application_services_state2 RENAME TO application_services_state;