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Fix existing hex encoded json values in DB
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synapse/storage/schema/delta/56/redaction_censor3_fix_update.sql.postgres
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/* Copyright 2019 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. | ||
*/ | ||
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-- There was a bug where we may have updated censored redactions as bytes, | ||
-- which can (somehow) cause json to be inserted hex encoded. This goes and | ||
-- undoes any such hex encoded JSON. | ||
UPDATE event_json SET json = convert_from(json::bytea, 'utf8') | ||
WHERE event_id IN ( | ||
SELECT event_json.event_id | ||
FROM event_json | ||
INNER JOIN redactions ON (event_json.event_id = redacts) | ||
WHERE have_censored AND json NOT LIKE '{%' | ||
); |