这个连接的执行计划的正确性取决于优化器对涉及到P_ RETAILPRICE的谓词将从PART的800,000行中选择多少行这一问题的估计。
The correct execution plan for this join depends on the optimizer's estimate of how many of PART's 800,000 rows will be selected by the predicate involving P_RETAILPRICE.
所有事件发生的奇怪方式都证实了这一估计的正确性。
All the strange patterns of events have borne out the correctness of this appraisal.
一切事变，都已经证明并且将继续证明这些估计的正确性。
All events have borne out and will continue to bear out the correctness of this appraisal.
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