5.7 RDS physical backup is restored to the local method
https://yq.aliyun.com/articles/688509
MySQL backup data
https://help.aliyun.com/document_detail/98818.html?spm=a2c4g.11186623.6.684.5660568arTX6qQ
RDS for MySQL physical backup file recovery to self-built database
https://help.aliyun.com/knowledge_detail/41817.html?spm=a2c4g.11186631.2.1.434247acfAIAwY
RDS for MySQL logical backup file recovery to self-built database