Composite Model - Append Direct Query table to Import Table

Hi,

I've got a question regarding composite models.  I've got a usage scenario where I need to present 12 months of transactional data including real-time results from today.  I am considering a composite model where the last 12 months less the current day of transactional data is imported and the current day results are direct query.  If I append the direct query data to the import data in Power Query, how will the resulting table behave?  Will a refresh of the append table trigger a refresh of the import data as well as the Direct  Query data, or will only the Direct Query data refresh at run-time?

Thanks!