[
  {
    "type": "alter_table",
    "description": "Widen systemBuys.phoneNum from VARCHAR(10) to VARCHAR(20) to support formatted and international phone numbers",
    "database": "{{buys}}",
    "check_query": "SELECT COLUMN_NAME FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = 'kiosk_buys' AND TABLE_NAME = 'systemBuys' AND COLUMN_NAME = 'phoneNum' AND CHARACTER_MAXIMUM_LENGTH >= 20",
    "sql": "ALTER TABLE `systemBuys` MODIFY COLUMN `phoneNum` VARCHAR(20) NOT NULL"
  }
]