MongoDB Output Settings for kettle Tool

  mongodb, question

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Excuse me, does anyone know how to set the mongoodocumentpath under this mongoodocumentfields?

I now need to convert the oracle relational database into the following json format:

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Now I have a difficult problem: I don’t know how to set the Mongo document path of this third-level sub-table LEG.

http://wiki.pentaho.com/display/EAI/MongoDB+Output
Refer to the official instructions for using this control