The more index levels, the more reads Informix Dynamic Server must perform to get to index leaf nodes, and the more time it will take to get to the real data.
索引层次越多,Informix Dynamic Server就必须执行越多的读取来获取索引叶子节点,并且就将花更多的时间来获得真正的数据。
Google will a new algorithm called "freshness algorithm" (new algorithm), using Google 's "caffeine" webpage index system faster capture network information, and provide real-time search results.
谷歌将新算法称为“freshness algorithm”(新颖度算法),利用谷歌的“咖啡因”网页索引系统更快的捕捉网络信息,并给出相关的实时搜索结果。
We can index real-time info now - but how do we rank it?
现在我们可以进行即时资讯索引--但我们如何排名呢?
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