user: Question: On 10/20/1979*, who was the Opponent?
Columns: ['Date', 'Opponent', 'Location', 'Result', 'Attendance']
Types: ['text', 'text', 'text', 'text', 'real']
Sample row: ['09/08/1979', 'Appalachian State', 'Groves Stadium • Winston-Salem, NC', 'W 30-23', 26500.0]
SQL:

assistant: SELECT "Opponent" FROM "Table" WHERE "Date" = '10/20/1979*';