50 lines
2.2 KiB
MySQL
50 lines
2.2 KiB
MySQL
![]() |
/* 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);
|