public void addMetadata() {
        addMetadata(customerId, ColumnMetadata.named("customer_id").withIndex(3).ofType(4).withSize(10));
        addMetadata(id, ColumnMetadata.named("id").withIndex(1).ofType(-5).withSize(19).notNull());
        addMetadata(paid, ColumnMetadata.named("paid").withIndex(2).ofType(-7).notNull());
    }
SOrder is a Querydsl query type for SOrder
querydsl-jpa/src/test/java/com/querydsl/jpa/domain/sql/SOrder.java