MatrixSynapse/synapse/storage/databases/main/schema/delta/58/07add_method_to_thumbnail_c...

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/* 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.
*/
/*
* This adds the method to the unique key constraint of the thumbnail databases.
* Otherwise you can't have a scaled and a cropped thumbnail with the same
* resolution, which happens quite often with dynamic thumbnailing.
* This is the postgres specific migration modifying the table with a background
* migration.
*/
-- add new index that includes method to local media
INSERT INTO background_updates (ordering, update_name, progress_json) VALUES
(5807, 'local_media_repository_thumbnails_method_idx', '{}');
-- add new index that includes method to remote media
INSERT INTO background_updates (ordering, update_name, progress_json, depends_on) VALUES
(5807, 'remote_media_repository_thumbnails_method_idx', '{}', 'local_media_repository_thumbnails_method_idx');
-- drop old index
INSERT INTO background_updates (ordering, update_name, progress_json, depends_on) VALUES
(5807, 'media_repository_drop_index_wo_method', '{}', 'remote_media_repository_thumbnails_method_idx');