forked-synapse/synapse/storage/schema/main/delta/61/01insertion_event_lookups.sql
2023-11-21 15:29:58 -05:00

69 lines
2.9 KiB
SQL

--
-- This file is licensed under the Affero General Public License (AGPL) version 3.
--
-- Copyright (C) 2023 New Vector, Ltd
--
-- This program is free software: you can redistribute it and/or modify
-- it under the terms of the GNU Affero General Public License as
-- published by the Free Software Foundation, either version 3 of the
-- License, or (at your option) any later version.
--
-- See the GNU Affero General Public License for more details:
-- <https://www.gnu.org/licenses/agpl-3.0.html>.
--
-- Originally licensed under the Apache License, Version 2.0:
-- <http://www.apache.org/licenses/LICENSE-2.0>.
--
-- [This file includes modifications made by New Vector Limited]
--
--
/* Copyright 2021 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.
*/
-- Add a table that keeps track of "insertion" events and
-- their next_chunk_id's so we can navigate to the next chunk of history.
CREATE TABLE IF NOT EXISTS insertion_events(
event_id TEXT NOT NULL,
room_id TEXT NOT NULL,
next_chunk_id TEXT NOT NULL
);
CREATE UNIQUE INDEX IF NOT EXISTS insertion_events_event_id ON insertion_events(event_id);
CREATE INDEX IF NOT EXISTS insertion_events_next_chunk_id ON insertion_events(next_chunk_id);
-- Add a table that keeps track of all of the events we are inserting between.
-- We use this when navigating the DAG and when we hit an event which matches
-- `insertion_prev_event_id`, it should backfill from the "insertion" event and
-- navigate the historical messages from there.
CREATE TABLE IF NOT EXISTS insertion_event_edges(
event_id TEXT NOT NULL,
room_id TEXT NOT NULL,
insertion_prev_event_id TEXT NOT NULL
);
CREATE UNIQUE INDEX IF NOT EXISTS insertion_event_edges_event_id ON insertion_event_edges(event_id);
CREATE INDEX IF NOT EXISTS insertion_event_edges_insertion_room_id ON insertion_event_edges(room_id);
CREATE INDEX IF NOT EXISTS insertion_event_edges_insertion_prev_event_id ON insertion_event_edges(insertion_prev_event_id);
-- Add a table that keeps track of how each chunk is labeled. The chunks are
-- connected together based on an insertion events `next_chunk_id`.
CREATE TABLE IF NOT EXISTS chunk_events(
event_id TEXT NOT NULL,
room_id TEXT NOT NULL,
chunk_id TEXT NOT NULL
);
CREATE UNIQUE INDEX IF NOT EXISTS chunk_events_event_id ON chunk_events(event_id);
CREATE INDEX IF NOT EXISTS chunk_events_chunk_id ON chunk_events(chunk_id);