is there a way to export only specified fields in a sub-document while using mongoexport? mongo docs says to just use -f field1, field2 etc... but that only works with top level fields. i have a document inside of the main document that also has fields. is there any way to get only those?is there a way to export only specified fields
阅读背景：
如何使用mongoexport只导出子文档中的特定字段
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