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8 lines
592 B
MySQL
8 lines
592 B
MySQL
3 years ago
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-- Add migration script here
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DELETE FROM thumbnails WHERE file_id NOT IN (SELECT MIN(files.id) FROM files GROUP BY hash_id);
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DELETE FROM files WHERE ROWID NOT IN (SELECT MIN(ROWID) FROM files GROUP BY hash_id);
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DELETE FROM thumbnails WHERE hash_id NOT IN (SELECT MIN(hashes.id) FROM hashes GROUP BY value);
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DELETE FROM files WHERE hash_id NOT IN (SELECT MIN(hashes.id) FROM hashes GROUP BY value);
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DELETE FROM hashes WHERE ROWID NOT IN (SELECT MIN(ROWID) FROM hashes GROUP BY value);
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CREATE UNIQUE INDEX hash_value_index ON hashes (value);
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CREATE UNIQUE INDEX file_hash_id ON files (hash_id);
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