本例中，它所提供的统计数据是不准确的，也不是最新的。
In this case, the statistics it provides are not accurate and up to date.
当有关表的统计信息不准确时，可能会造成性能问题。
When statistical information about tables is not accurate, it may cause performance problems.
当有关表的统计信息不准确时，可能会造成性能问题。
When statistical information about tables is not accurate, it may cause performance problems.
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