-- Your SQL goes here
ALTER TABLE authentication
ADD COLUMN IF NOT EXISTS earliest_supported_version JSONB,
ADD COLUMN IF NOT EXISTS latest_supported_version JSONB,
ADD COLUMN IF NOT EXISTS mcc VARCHAR(8),
ADD COLUMN IF NOT EXISTS platform VARCHAR(64),
ADD COLUMN IF NOT EXISTS device_type VARCHAR(255),
ADD COLUMN IF NOT EXISTS device_brand VARCHAR(255),
ADD COLUMN IF NOT EXISTS device_os VARCHAR(255),
ADD COLUMN IF NOT EXISTS device_display VARCHAR(255),
ADD COLUMN IF NOT EXISTS browser_name VARCHAR(255),
ADD COLUMN IF NOT EXISTS browser_version VARCHAR(255),
ADD COLUMN IF NOT EXISTS scheme_name VARCHAR(255),
ADD COLUMN IF NOT EXISTS exemption_requested BOOLEAN,
ADD COLUMN IF NOT EXISTS exemption_accepted BOOLEAN,
ADD COLUMN IF NOT EXISTS issuer_id VARCHAR(255),
ADD COLUMN IF NOT EXISTS issuer_country VARCHAR(16),
ADD COLUMN IF NOT EXISTS merchant_country_code VARCHAR(8),
ADD COLUMN IF NOT EXISTS billing_country VARCHAR(16),
ADD COLUMN IF NOT EXISTS shipping_country VARCHAR(16);