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Make sequence cache_invalidation_stream_seq
begin at 2
(#13766)
Signed-off-by: Mathieu Velten <mathieuv@matrix.org> Co-authored-by: Sean Quah <8349537+squahtx@users.noreply.github.com>
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changelog.d/13766.bugfix
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changelog.d/13766.bugfix
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Fix a long-standing bug where the `cache_invalidation_stream_seq` sequence would begin at 1 instead of 2.
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@ -76,6 +76,7 @@ Changes in SCHEMA_VERSION = 72:
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- event_edges.(room_id, is_state) are no longer written to.
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- Tables related to groups are dropped.
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- Unused column application_services_state.last_txn is dropped
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- Cache invalidation stream id sequence now begins at 2 to match code expectation.
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"""
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@ -0,0 +1,23 @@
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/* Copyright 2022 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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-- The sequence needs to begin at 2 because a bunch of code assumes that
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-- get_next_id_txn will return values >= 2, cf this comment:
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-- https://github.com/matrix-org/synapse/blob/b93bd95e8ab64d27ae26841020f62ee61272a5f2/synapse/storage/util/id_generators.py#L344
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SELECT setval('cache_invalidation_stream_seq', (
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SELECT COALESCE(MAX(last_value), 1) FROM cache_invalidation_stream_seq
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));
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