Hi @振豪 刘 ,
Welcome to Microsoft Q&A!
The key thing here is to ensure that you did not have any overlapping data for the partitions, otherwise, it will read the overlapping data twice or more, then you may encounter the situations that you mentioned in this thread.
If this is the case, please check partition definition, delete all the partitions that have overlapping data, and re-create them. Please refer to Create partitions
Best regards,
Carrin
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