The results tab displays the results of a query. It is mainly a table with all the records that match the query. The only action this tab has is Refresh. If a query changes, you need to press the Refresh button to view the new query results, unless you have previously checked the Auto-refresh box.
The query can be changed to a list of Distinct values on the tab. Toggling between Distinct and All Results adds and removes the SQL DISTINCT keyword to the query.