从合并的记录，我们应该有我们需要的所有信息。
From the merged record, we should have all of the information we need.
分支保存您进行分支的文件夹和文件的历史记录，并允许将更改从旧文件合并到新文件中。
Branching preserves the history of the folders and files that you are branching and allows changes to be merged from the old files to the new ones.
间隙锁之所以会冲突，是因为当一条记录从索引中移除，不同的事务在这条记录上加的锁就必须合并。
The reason conflicting gap locks are allowed is that if a record is purged from an index, the gap locks held on the record by different transactions must be merged.
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