user: Question: What is the highest season for a bowl game of the 1993 Independence Bowl?
Columns: ['#', 'Season', 'Bowl game', 'Result', 'Opponent', 'Stadium', 'Location', 'Attendance']
Types: ['real', 'real', 'text', 'text', 'text', 'text', 'text', 'text']
Sample row: [1.0, 1946.0, '1947 Sun Bowl', 'L 18–6', 'Cincinnati Bearcats', 'Kidd Field', 'El Paso, TX', '10,000']
SQL:

assistant: SELECT MAX("Season") FROM "Table" WHERE "Bowl game" = '1993 Independence Bowl';