不可重复键 unique Key
可重覆键
Repeatable key
以上为机器翻译结果,长、整句建议使用 人工翻译 。
实际上,在INSERT期间惟一保持的行级锁是next - key锁,这个锁用于使INSERT不会添加键到可重复的读扫描器。
In fact, the only row-level locking that remains during INSERT is the next-key locks that are required to protect an INSERT from adding keys to repeatable read scanners.
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