1. No matter what, it is not really deleted, set the delete mark and record the transaction ID.
2. mvcc is a multi-version mechanism. It is not a question of whether you use it or not. When up, it is for the current read, and only select is a snapshot read.
1. No matter what, it is not really deleted, set the delete mark and record the transaction ID.
2. mvcc is a multi-version mechanism. It is not a question of whether you use it or not. When up, it is for the current read, and only select is a snapshot read.