/* Copyright 2020 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.
 */

-- We keep the old table here to enable us to roll back. It doesn't matter
-- that we have dropped all the data here.
TRUNCATE cache_invalidation_stream;

CREATE TABLE cache_invalidation_stream_by_instance (
    stream_id       BIGINT NOT NULL,
    instance_name   TEXT NOT NULL,
    cache_func      TEXT NOT NULL,
    keys            TEXT[],
    invalidation_ts BIGINT
);

CREATE UNIQUE INDEX cache_invalidation_stream_by_instance_id ON cache_invalidation_stream_by_instance(stream_id);

CREATE SEQUENCE cache_invalidation_stream_seq;