In a range query (or filter), the user states the need to restrict all searched documents to be between two values that have a natural sorting.
在范围查询(或过滤器)中,用户声明需要将所有搜索到的文档限制在使用自然排序的两个值之间。
2
Since it is a range predicate and there are no frequency and histogram statistics available, the filter factor is calculated with the basic statistics information HIGH2KEY and LOW2KEY.