MatrixSynapse/synapse/storage/schema/delta/35/device_stream_id.sql

/* Copyright 2016 OpenMarket Ltd
 *
 * 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 TABLE device_max_stream_id (
    stream_id BIGINT NOT NULL
);

INSERT INTO device_max_stream_id (stream_id)
    SELECT COALESCE(MAX(stream_id), 0) FROM device_inbox;