The query optimizer might come up with a different query execution plan tailored to provide good performance for fast retrieval of first 'n' rows rather than all the result rows.
查询优化器可能得出一个不同的查询执行计划,这个计划可以专门为最快地获取前'N '行,而不是所有结果行提供良好的性能。
The query optimizer might come up with a different query execution plan tailored to provide good performance for fast retrieval of first 'n' rows rather than all the result rows.
查询优化器可能得出一个不同的查询执行计划,这个计划可以专门为最快地获取前'N '行,而不是所有结果行提供良好的性能。
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