synapse/synapse/storage/schema/main/delta/82/03_drop_old_tables.sql

/* Copyright 2023 The Matrix.org Foundation C.I.C
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 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
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 *    http://www.apache.org/licenses/LICENSE-2.0
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 * distributed under the License is distributed on an "AS IS" BASIS,
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-- Drop the old event transaction ID table, the event_txn_id_device_id table
-- should be used instead.
DROP TABLE IF EXISTS event_txn_id;

-- Drop tables related to MSC2716 since the implementation is being removed
DROP TABLE insertion_events;
DROP TABLE insertion_event_edges;
DROP TABLE insertion_event_extremities;
DROP TABLE batch_events;