code: public void addGenerator(IdGenerator generator) {
  		checkReadOnly();
  		DialectException.assureNotNull(generator);
  		DialectException.assureNotNull(generator.getGenerationType());
  		DialectException.assureNotEmpty(generator.getIdGenName(), "IdGenerator name can not be empty");
  		getIdGenerators().add(generator);
  	}
docs: Add a "create table..." DDL to generate ID, similar like JPA's TableGen