Small followup:
If the issue you’re having is that you’re not seeing the material data inside each materialQuantity record (like so👇🏼)
These objects represent a different element in the speckle database, you will find a row with the same Object ID in the original table that get’s returned by our Data Connector.
Jonathon has written several replies in the past about this, I recommend reading this reply (and the links it contains) to get a better idea of how this is done.
Hope this helps!