weijuesen
18 lines
658 B
SQL
18 lines
658 B
SQL
-- 保留全部历史记录，只对同用户重复键追加记录 ID，避免迁移删除或丢失数据。
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UPDATE inspection_records AS r
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SET idempotency_key = r.idempotency_key || '#' || r.id
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WHERE r.idempotency_key IS NOT NULL
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AND EXISTS (
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SELECT 1
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FROM inspection_records AS x
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WHERE x.user_id IS NOT DISTINCT FROM r.user_id
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AND x.idempotency_key = r.idempotency_key
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AND x.id <> r.id
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);
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DROP INDEX IF EXISTS idx_inspection_records_idempotency_key;
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CREATE UNIQUE INDEX IF NOT EXISTS idx_inspection_records_user_idempotency
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ON inspection_records (user_id, idempotency_key)
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WHERE idempotency_key IS NOT NULL;
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