MatrixSynapse/synapse/storage/schema/main/delta/16/remove_duplicates.sql

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MySQL
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2015-04-10 19:47:03 +02:00
DELETE FROM event_to_state_groups WHERE state_group not in (
SELECT MAX(state_group) FROM event_to_state_groups GROUP BY event_id
);
DELETE FROM event_to_state_groups WHERE rowid not in (
SELECT MIN(rowid) FROM event_to_state_groups GROUP BY event_id
);