它定义了所有字段的默认值。

It defines default values for all its fields.

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举个例子，您可能会遇到关于TIMESTAMP或DATE字段没有默认字段值的错误。

As an example, one error you can encounter relates to TIMESTAMP or DATE fields which do not have a default field value.

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其他字段保留默认值，保存新建文档类型。

Leave everything else as default and save the new document type.

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