         convert(dm.data using UTF8MB4) meta_data,
         convert(dd.data using UTF8MB4) content_data
     from doc dm
-    left join doc dd on dm.uuid = dd.uuid and dd.ext != dm.ext
+    left join doc dd
+        on dm.uuid = dd.uuid
+        and dd.ext != dm.ext
     where dm.ext = 'meta') v;
 
 SET SQL_NOTES=@OLD_SQL_NOTES;

        '$.name',
        '$.type',
        '$.version',
        '$.createTime',
        '$.createUser',
        '$.updateTime',
        '$.updateUser') meta_data,
    v.content_data
from
    (select

    v.content_extension,
    json_extract(v.meta_data, '$.type') doc_type,
    json_extract(v.meta_data, '$.version') version,
    from_unixtime(json_extract(v.meta_data, '$.createTimeMs') / 1000) createTime,
    json_extract(v.meta_data, '$.createUser') createUser,
    from_unixtime(json_extract(v.meta_data, '$.updateTimeMs') / 1000) updateTime,
    json_extract(v.meta_data, '$.updateUser') updateUser,
    json_remove(
        v.meta_data,
