user: Question: How many different partners were played with during French Open (0/1)?
Columns: ['Outcome', 'Year', 'Championship (Titles/Finals)', 'Surface', 'Partner', 'Opponents in the final', 'Score in the final']
Types: ['text', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: ['Winner', 1980.0, 'Australian Open (1/1)', 'Grass', 'Kim Warwick', 'Peter McNamara Paul McNamee', '7–5, 6–4']
SQL:

assistant: SELECT COUNT("Partner") FROM "Table" WHERE "Championship (Titles/Finals)" = 'French Open (0/1)';