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- /* Copyright 2019 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 add membership to current state so that we don't need to join against
- -- room_memberships, which can be surprisingly costly (we do such queries
- -- very frequently).
- -- This will be null for non-membership events and the content.membership key
- -- for membership events. (Will also be null for membership events until the
- -- background update job has finished).
-
- INSERT INTO background_updates (update_name, progress_json) VALUES
- ('current_state_events_membership', '{}');
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