Clearing the local database will delete the texts of cached messages and compress the database to save internal disk space. Telegram needs some data to work, so database size will not reach zero.\n\n
This operation can take a few minutes to complete.
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清除本地数据库将删除缓的信息并压缩数据库以节约内部存储空间。Telegram 需要一些数据运行，所以数据库大小不会为零。
此操作需要几分钟完成。
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Robert Lyu,
Jun 15, 2020 at 01:22