41 lines
1.6 KiB
SQL
41 lines
1.6 KiB
SQL
/* Copyright 2020 The Matrix.org Foundation C.I.C
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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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-- A map of recent events persisted with transaction IDs. Used to deduplicate
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-- send event requests with the same transaction ID.
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--
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-- Note: transaction IDs are scoped to the room ID/user ID/access token that was
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-- used to make the request.
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--
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-- Note: The foreign key constraints are ON DELETE CASCADE, as if we delete the
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-- events or access token we don't want to try and de-duplicate the event.
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CREATE TABLE IF NOT EXISTS event_txn_id (
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event_id TEXT NOT NULL,
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room_id TEXT NOT NULL,
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user_id TEXT NOT NULL,
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token_id BIGINT NOT NULL,
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txn_id TEXT NOT NULL,
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inserted_ts BIGINT NOT NULL,
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FOREIGN KEY (event_id)
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REFERENCES events (event_id) ON DELETE CASCADE,
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FOREIGN KEY (token_id)
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REFERENCES access_tokens (id) ON DELETE CASCADE
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);
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CREATE UNIQUE INDEX IF NOT EXISTS event_txn_id_event_id ON event_txn_id(event_id);
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CREATE UNIQUE INDEX IF NOT EXISTS event_txn_id_txn_id ON event_txn_id(room_id, user_id, token_id, txn_id);
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CREATE INDEX IF NOT EXISTS event_txn_id_ts ON event_txn_id(inserted_ts);
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