Googles new datastore defines a data model that lies between the abstract tuples of an RDBMS and the concrete row-column storage of NoSQL.
Google新的数据存储定义了一种介于RDBMS抽象元组和NoSQL具体的行列存储之间的一种数据模型。
The coefficient matrix is stored by row storage. Column storage address is also provided. Rapid storage of coefficient matrix in finite element method is then realized.
系数阵采用行存储，同时提供按列寻址的地址，实现有限元系数矩阵的快速存储。
In simple terms, fragment-level statistics allows storage of column data distributions per fragment, and building the table level from its constituent fragments.
简单来说，片段级统计允许按片段存储列数据分布，并从组成的片段中构建表级别。
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