To reduce the expensive access to archive data, the characteristics of aggregate data query were analyzed, and the aggregate query language and its rewriting method were proposed.
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释义
摘要为了减少在计算和存档数据流的过程中对昂贵的存档数据的存取,分析了聚集数据查询的特点,并引入了聚集查询语言和聚集查询重写方法。
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