... persistent memory 持续记忆体 phantom transaction 幻影交易 pick rate 捡拾率 ...
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A phantom read occurs when a transaction re-executes a query and finds a set of results changed since the last query due to another transaction that committed new data.
当事务再次执行查询，并发现一组结果自最后一次查询后由于另一个事务提交了新的数据而发生了更改，则会发生幻像读。
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