[
  {
    "type": "alter_table",
    "description": "Change brands.id from VARCHAR(20) to INT to match sales.brandID type and enable index usage on joins",
    "database": "kiosk_sales",
    "check_query": "SELECT 1 FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = 'kiosk_sales' AND TABLE_NAME = 'brands' AND COLUMN_NAME = 'id' AND DATA_TYPE = 'int'",
    "sql": "ALTER TABLE `brands` MODIFY COLUMN `id` INT NOT NULL"
  }
]