36 lines
1.7 KiB
Plaintext
36 lines
1.7 KiB
Plaintext
/* 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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-- when we first added the room_version column, it was populated via a background
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-- update. We now need it to be populated before synapse starts, so we populate
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-- any remaining rows with a NULL room version now. For servers which have completed
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-- the background update, this will be pretty quick.
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-- the following query will set room_version to NULL if no create event is found for
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-- the room in current_state_events, and will set it to '1' if a create event with no
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-- room_version is found.
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UPDATE rooms SET room_version=(
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SELECT COALESCE(json::json->'content'->>'room_version','1')
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FROM current_state_events cse INNER JOIN event_json ej USING (event_id)
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WHERE cse.room_id=rooms.room_id AND cse.type='m.room.create' AND cse.state_key=''
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) WHERE rooms.room_version IS NULL;
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-- we still allow the background update to complete: it has the useful side-effect of
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-- populating `rooms` with any missing rooms (based on the current_state_events table).
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-- see also rooms_version_column_2.sql.sqlite which has a copy of the above query, using
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-- sqlite syntax for the json extraction.
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