印刷技术中的一行点线，用于引导视线沿印刷行移动。
In printing, a line of dots, used to direct the eye along a printed line.
远程服务器到联邦服务器的行移动及本地HSJOIN操作符与union操作符之间行移动仍然是串行的。
Row movement from the remote servers back to the federated server, as well as between the local HSJOIN operators and the UNION operator is serialized.
在V 8中，谓词没有被下推到CF，为了计算谓词和执行聚合，需要将大约1百万个行移动到联邦服务器。
In V8, the predicate was not pushed down to CF, and nearly one million rows had to be moved to the federated server to evaluate the predicate and perform the aggregate.
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