If the maximum identifier length is too small, certain predefined identifiers will be unresolved as well as certain library function calls.

如果最大识别项长度太小，有些预先定义的识别项会和某些程序库函式呼叫一样无法解析。

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You need to assign a unique string identifier to each predefined validator that you use, as shown in the next steps

您需要向您所使用的每一个预定义确认器分配一个独一无二的字符串标识符，如下一步所示

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A pseudo column is an identifier with a predefined name that holds information about the hierarchical query and that can be used like any column in a table.

伪列是具有预先定义的名称的标识符，其中包含关于分级查询的信息；它的用途类似于表中的任何列。

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