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5fdc12f482
This adds an `event_stream_ordering` column to `current_state_events`, `local_current_membership` and `room_memberships`. Each of these tables is regularly joined with the `events` table to get the stream ordering and denormalising this into each table will yield significant query performance improvements once used. Includes a background job to populate these values from the `events` table. Same idea as https://github.com/matrix-org/synapse/pull/13703. Signed off by Nick @ Beeper (@fizzadar).
22 lines
932 B
SQL
22 lines
932 B
SQL
/* Copyright 2022 Beeper
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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ALTER TABLE current_state_events ADD COLUMN event_stream_ordering BIGINT;
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ALTER TABLE local_current_membership ADD COLUMN event_stream_ordering BIGINT;
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ALTER TABLE room_memberships ADD COLUMN event_stream_ordering BIGINT;
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INSERT INTO background_updates (update_name, progress_json) VALUES
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('populate_membership_event_stream_ordering', '{}');
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