From 5e500584738d4e9ce897e92056e20c7909052601 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Fri, 13 May 2016 13:28:07 +0100 Subject: [PATCH 1/3] Remove unused indices This includes removing both unused indices and indices that are subsets of other indices. --- .../schema/delta/32/remove_indices.sql | 42 +++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 synapse/storage/schema/delta/32/remove_indices.sql diff --git a/synapse/storage/schema/delta/32/remove_indices.sql b/synapse/storage/schema/delta/32/remove_indices.sql new file mode 100644 index 000000000..314fa5128 --- /dev/null +++ b/synapse/storage/schema/delta/32/remove_indices.sql @@ -0,0 +1,42 @@ +/* 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; From 9295fa30a83c5ecdb6315b1cc39910af3284d6be Mon Sep 17 00:00:00 2001 From: Mark Haines Date: Fri, 13 May 2016 14:16:57 +0100 Subject: [PATCH 2/3] Annotate the removed indicies with why they were removed. --- .../schema/delta/32/remove_indices.sql | 33 +++++++++---------- 1 file changed, 15 insertions(+), 18 deletions(-) diff --git a/synapse/storage/schema/delta/32/remove_indices.sql b/synapse/storage/schema/delta/32/remove_indices.sql index 314fa5128..91eab6d63 100644 --- a/synapse/storage/schema/delta/32/remove_indices.sql +++ b/synapse/storage/schema/delta/32/remove_indices.sql @@ -16,27 +16,24 @@ -- 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; +DROP INDEX IF EXISTS events_room_id; -- Prefix of events_room_stream +DROP INDEX IF EXISTS events_order; -- Prefix of events_order_topo_stream_room +DROP INDEX IF EXISTS events_topological_ordering; -- Prefix of events_order_topo_stream_room +DROP INDEX IF EXISTS events_stream_ordering; -- Duplicate of PRIMARY KEY +DROP INDEX IF EXISTS state_groups_id; -- Duplicate of PRIMARY KEY +DROP INDEX IF EXISTS event_to_state_groups_id; -- Duplicate of PRIMARY KEY +DROP INDEX IF EXISTS event_push_actions_room_id_event_id_user_id_profile_tag; -- Duplicate of UNIQUE CONSTRAINT +DROP INDEX IF EXISTS event_destinations_id; -- Prefix of UNIQUE CONSTRAINT +DROP INDEX IF EXISTS st_extrem_id; -- Prefix of UNIQUE CONSTRAINT +DROP INDEX IF EXISTS event_content_hashes_id; -- Prefix of UNIQUE CONSTRAINT +DROP INDEX IF EXISTS event_signatures_id; -- Prefix of UNIQUE CONSTRAINT +DROP INDEX IF EXISTS event_edge_hashes_id; -- Prefix of UNIQUE CONSTRAINT +DROP INDEX IF EXISTS redactions_event_id; -- Duplicate of UNIQUE CONSTRAINT +DROP INDEX IF EXISTS room_hosts_room_id; -- Prefix of UNIQUE CONSTRAINT -- The following indices were unused +DROP INDEX IF EXISTS remote_media_cache_thumbnails_media_id; DROP INDEX IF EXISTS evauth_edges_auth_id; DROP INDEX IF EXISTS topics_room_id; DROP INDEX IF EXISTS presence_stream_state; From c9aff0736c75046b8923057309af91d1bd7a6985 Mon Sep 17 00:00:00 2001 From: Erik Johnston Date: Fri, 13 May 2016 14:40:38 +0100 Subject: [PATCH 3/3] Remove topics table --- synapse/storage/schema/delta/32/remove_indices.sql | 1 - 1 file changed, 1 deletion(-) diff --git a/synapse/storage/schema/delta/32/remove_indices.sql b/synapse/storage/schema/delta/32/remove_indices.sql index 91eab6d63..f859be46a 100644 --- a/synapse/storage/schema/delta/32/remove_indices.sql +++ b/synapse/storage/schema/delta/32/remove_indices.sql @@ -35,5 +35,4 @@ DROP INDEX IF EXISTS room_hosts_room_id; -- Prefix of UNIQUE CONSTRAINT -- The following indices were unused DROP INDEX IF EXISTS remote_media_cache_thumbnails_media_id; DROP INDEX IF EXISTS evauth_edges_auth_id; -DROP INDEX IF EXISTS topics_room_id; DROP INDEX IF EXISTS presence_stream_state;