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.
图形记录便显示了在短的间隙内先后到达的三种波。
The graphic record shows three waves arriving one after the other at short intervals.
各块由块间间隙分开，而每块可以包含一个或多个记录。
Blocks are separated by interblock gaps and each block may contain one or more records.
各块由块间间隙分开，而每块可以包含一个或多个记录。
Blocks are separated by interblock gaps and each block may contain one or more records.
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