Cannot use feeds to import into data tables where the primary key is multiple

I am using Data Module to create tables in Drupal.Now, I need to import some data through CSVs, for this I want to use Feeds Module. My table consists of more than one primary key i.e. a group of fields together forms a primary key.

Is there any way to import the data for such a case using feeds? Coz my understanding is that feeds cannot import data if the primary keys are not restricted into a single column.