The transformation layer will apply an inference process (similar to forward-chaining) and check for each node in the plan tree to see which query transformations apply to that node.
转换层将应用一个推理过程(类似于前推链接法)，并检查规划树中的每个节点，看哪些查询转换适用于该节点。
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。
Enables or disables query plan tracing, also known as a plan tree, which captures the transformation process of a query.
启用或禁用查询规划跟踪，也称为规划树，它捕获一个查询的转换流程。
A report request coming in to the Dynamic Query Mode will initially be parsed into a plan tree.
传入dynamicQueryMode的一个报表请求首先会被解析成一个规划树。
In the procedure of path decomposition and query plan selection, target node in the query tree is utilized to avoid the transfer of the intermediate results.
在路径分解和查询计划选择的过程中，利用查询树中的目标节点来避免中间结果的传递。
In this paper, we offer a segmented query executive plan which is based on bushy tree model.
该文以丛生树模型为基础，提出了一种片段式查询执行计划。
In this paper, we offer a segmented query executive plan which is based on bushy tree model.
该文以丛生树模型为基础，提出了一种片段式查询执行计划。
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