evaluated index
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评价指标
评价指标
As a result, it is feasible that this hybrid evaluated method based on characteristic of evaluated index.
结果表明:这种基于评价指标特点的混合评价方法是可行的。
For example, if only a single day should be evaluated (roughly 1,000 rows), accessing the rows using the SALES_DATE index is preferable.
例如,如果只有一天需要计算(约 1,000 行),使用 SALES_DATE 索引访问行可能更好。
As you see in Table 3, a string predicate can only be evaluated with an XML index of type VARCHAR, while a numeric predicate can only be evaluated with an index of type DOUBLE.
正如您在表3中所看到的,字符串谓词只能由varchar类型的xml索引进行计算,而数值谓词只能由double类型的索引进行计算。
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