user: Question: How many season had Melgar as a champion?
Columns: ['Season', 'Champion', 'Count', 'Runners-up', 'Third place', 'Top scorer', 'Top scorers club', 'Goals']
Types: ['real', 'text', 'real', 'text', 'text', 'text', 'text', 'text']
Sample row: [1951.0, 'Sport Boys', 4.0, 'Deportivo Municipal', 'Mariscal Sucre', 'Valeriano Lopez', 'Sport Boys', '31']
SQL:

assistant: SELECT COUNT("Season") FROM "Table" WHERE "Champion" = 'Melgar';