对于嵌套事务，提交不会将任何更改写入磁盘，除了***事务.然而，无论事务的级别如何，回滚都有效，所以是的，它将回滚内部事务.

With a nested transaction, a commit does not write any changes to disk, except for the top level transaction. A rollback, however works regardless of the level of the transaction, so yes, it will roll the inner transaction back.