I have 3 simple tables:  Encounter, Patient and Immunizations.  Encounter makes  a reference to Patient, and Patient contains a list of Immunization objects.  

I've tried using PowerBI to access IRIS (using ODBC connector, not InterSystems BI connector),  PowerBI reports the error:

Expression.Error: The column 'Patient' of the table wasn't found.

it does this for two of the three tables I need only (Patient and Encounter), but not for Immunization IRIS table.. 

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