public void addMetadata() {
        addMetadata(dtype, ColumnMetadata.named("DTYPE").withIndex(1).ofType(12).withSize(31).notNull());
        addMetadata(id, ColumnMetadata.named("id").withIndex(2).ofType(-5).withSize(19).notNull());
    }
SMammal is a Querydsl query type for SMammal
querydsl-jpa/src/test/java/com/querydsl/jpa/domain/sql/SMammal.java