The identity transformation copies each node in the source to the output to provide a logically equivalent tree.

标识转换将源中的每个节点复制到输出以提供逻辑等效树。

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We can then examine the equivalent symbolic tree representation of this query plan in Figure 1.

随后，我们可以查看图1，其中展示了这个查询计划的等效符号树表示形式。

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In order to reduce their quantity and strength, you have to ignore them, which is equivalent to not watering the tree.

为了减少它们的数量和强度，你需要忽视它们，就像停止给树浇水一样。

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For the rest of the public, there is Google or some equivalent just as there is the endless automated decision tree, phone or Web.

FORBES: Statistical Tools and Errands for Fools

As its name suggests, this spins the software equivalent of a roulette wheel to generate a random tree, then examines how snugly the branches of that tree fit the modern foliage.

ECONOMIST: The evolution of language: Babel or babble? | The