This is due to the encoding of the group information in the binary string, and a grouping parameter of type VARCHAR requires potentially more space than a simple INTEGER value.

这是将分组信息编码到二进制串中的缘故，分组参数类型为VARCHAR，比简单的INTEGER类型潜在地要求更多的存储空间。

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Grouping by analysis object type (example: the classes that implement the boundaries).

按分析对象类型分组(实例：实现边界的类)。

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In this scenario, the right list object and the page set grouping will need to be associated to another query which consists of Product line, Product type and Revenue with no summary filter.

在这个场景中，右边的列表对象和页面集分组需要关联到另一个查询，该查询包含Product line、Product type和Revenue，但不包含摘要过滤器。

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