ALTER TABLE tenants DROP COLUMN IF EXISTS status; ALTER TABLE tenants DROP COLUMN IF EXISTS created_by; DROP TYPE IF EXISTS tenant_status; CREATE TYPE tenant_status AS ENUM ('creating', 'active', 'suspended', 'deleting', 'error'); ALTER TABLE tenants ADD COLUMN status tenant_status, ADD COLUMN created_by UUID; UPDATE tenants SET status = 'active'; ALTER TABLE tenants ALTER COLUMN status SET NOT NULL;