SELECT fetchMetricText('Application') = 'PostBooks'; This package must be applied to a PostBooks database. SELECT fetchMetricText('ServerVersion') > '4.4.'; This package must be applied to a 4.4+ database. SELECT NOT fetchMetricText('ServerVersion') >= '4.9.0'; This package may not be applied to a database newer than 4.8.0. SELECT NOT EXISTS(SELECT 1 FROM pg_namespace WHERE nspname = 'xm'); This package may not be applied to a mobile-enabled database. Please see your system administrator or contact xTuple.