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Remove unused indices

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This includes removing both unused indices and indices that are subsets
of other indices.
This commit is contained in:
Erik Johnston 2016-05-13 13:28:07 +01:00
parent cdda850ce1
commit 5e50058473
1 changed files with 42 additions and 0 deletions
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synapse/storage/schema/delta/32/remove_indices.sql Normal file
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/* 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.
*/
-- The following indices are redundant, other indices are equivalent or
-- supersets
DROP INDEX IF EXISTS events_room_id;
DROP INDEX IF EXISTS events_order;
DROP INDEX IF EXISTS events_topological_ordering;
DROP INDEX IF EXISTS events_stream_ordering;
DROP INDEX IF EXISTS state_groups_id;
DROP INDEX IF EXISTS event_to_state_groups_id;
DROP INDEX IF EXISTS event_push_actions_room_id_event_id_user_id_profile_tag;
DROP INDEX IF EXISTS event_push_actions_room_id_user_id;
DROP INDEX IF EXISTS event_destinations_id;
DROP INDEX IF EXISTS st_extrem_id;
DROP INDEX IF EXISTS event_content_hashes_id;
DROP INDEX IF EXISTS event_signatures_id;
DROP INDEX IF EXISTS event_edge_hashes_id;
DROP INDEX IF EXISTS redactions_event_id;
DROP INDEX IF EXISTS remote_media_cache_thumbnails_media_id;
DROP INDEX IF EXISTS room_hosts_room_id;
DROP INDEX IF EXISTS event_search_ev_ridx;
-- The following indices were unused
DROP INDEX IF EXISTS evauth_edges_auth_id;
DROP INDEX IF EXISTS topics_room_id;
DROP INDEX IF EXISTS presence_stream_state;