user: Question: Tell me the greatest att with an avg of 4.3
Columns: ['Player', 'Att.', 'Yards', 'Avg.', 'Long', 'FumL']
Types: ['text', 'real', 'real', 'real', 'real', 'real']
Sample row: ['Clinton Portis', 342.0, 1487.0, 4.3, 31.0, 3.0]
SQL:

assistant: SELECT MAX("Att.") FROM "Table" WHERE "Avg." = 4.3;