OLAP queries typically aggregate many rows of the fact table into a relatively small number of summary results.

OLAP 查询通常将事实表的许多行聚合成一个相对少量的汇总结果。

youdao

The summary table at the top of the pyramid is small, so queries on it are very fast.

金字塔顶端的汇总表比较小，因此对它的查询非常快。

youdao

If you enter the name or address of a place, a small bar appears at the bottom of the map with summary information, like the estimated travel time or, with restaurants, a summary of reviews.

如果你输入一个地点的名称或者地址，地图底部会出现一个小的摘要信息栏，显示例如预计行程时间等信息，或者，如果是餐馆，会显示简短的评价。

youdao

If you enter the name or address of a place, a small bar appears at the bottom of the map with summary information, like the estimated travel time or, with restaurants, a summary of reviews.

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In summary, the entire family uses this small business a lot.

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