如果一个度量引用其他度量，那么在为它产生SQL表达式时，不能使用聚合函数来为嵌套的度量产生SQL表达式。
When generating SQL expressions for measures that reference other measures, the aggregation function might not be used to form the SQL expression for the nested measures.
通过引用不同的类型将组件组合在一起或聚合在一起。
Components are put together or aggregated by referencing different types.
我们已经创建的XDIME聚合器项目引用了wps . war的部署目录。
The XDIMEaggregator project that we already created references the deployment directory of the wps.war. You should be familiar with the following directories within the wps.war.
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