Query the value in nested CDT 1:M

Nesting the CDTs inside one another is not recommended, especially when you are mapping them with tables.
But in your case, I am assuming that you have already gone far with this approach so did you try to create a query on the parent CDT and see if it is returning the expected result? 

Nesting the CDTs inside one another is not recommended, especially when you are mapping them with tables.
But in your case, I am assuming that you have already gone far with this approach so did you try to create a query on the parent CDT and see if it is returning the expected result? 

IF i query with dot notation, i get this error

Expression evaluation error at function a!queryEntity: Cannot filter by field [partsInformation.partNumber] because it is a complex, multiple, or child of a multiple data type.