要过滤掉所有以字母c开头的Product types，报告作者在整个Products层次结构(所有级别)上创建了一个过滤器，表达式如下。
In order to filter out all Product types that start with the letter c, the Report Author creates a filter on the entire Products hierarchy (all levels) with the following expression.
这是因为过滤器只应用到Products层次结构的最低投射级别，Product line没有被过滤。
This is because the filter applies only to the lowest projected level of the Products hierarchy, Product line is not filtered.
使用基于 OLAP 的包时，如果报告使用一个细节过滤器，而该过滤器包含了一个应用到层次结构的 NOT 操作符，那么执行报告将生成以下错误消息
When using an OLAP-based package, a report that uses a detail filter containing the NOT operator applied to a hierarchy produces the following error
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