I'm sorry, I don't really know what you mean. In a form library, with promoted properties, you will get one item (row) per submitted XML. If you promote repeating fields, you can "merge" the data, so your one item (row) per XML might have a number of entries in that single column. Say your column is Department, and it is promoted from a repeating table with a field "Department" and set to be merged, the values in the column may look like:
R & D, Human Resources, Silly Walks