发生的相同事件可以建模为几个简单的事件或一个复杂的聚合事件——每种方法都有不同的工作负载特征。
The same occurrence can be modeled as several simple events or a complex aggregate event -- either approach having different workload characteristics.
支持两种类型的查询：事件解决方案查询（它们只返回事件）和回答解决方案查询（它们可以返回任何非事件数据或聚合的结果）。
The two kinds of queries that are supported are: event solution queries, which return only events and the answer solution queries, which can return any non-event data or aggregated results.
在系统的简单事件处理阶段，可能需要对事件进行显示、筛选、聚合、标注或充实。
Events might be screened, filtered, aggregated, annotated, or augmented as part of the system's simple event processing phase.
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