This information can then be included as part of the optimizer decision during costing for selectivity and cardinality estimates for qualified queries which do not need to reference the view directly.
然后，这些信息被包括进来，用于帮助优化器在为那些符合条件的查询(这些查询不需要直接引用视图)的选择性估计和基数估计计算成本时做决定。
The experimental results show that the method is efficient for selectivity estimation for the distance joins.
实验结果证明该种方法能够有效地进行距离连接选择度估计。
For selectivity, there should be evidence that the substance being quantified is the intended analyte.
对选择性，应有凭证证明经定量的物质是目标分析物。
For selectivity, there should be evidence that the substance being quantified is the intended analyte.
对选择性，应有凭证证明经定量的物质是目标分析物。
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