small fixes for table, column and query_macro

demo/main.cpp

@@ -154,6 +154,11 @@ QUERY_HELPER( payload, PAYLOAD, id )
 
 QUERY_HELPER( temporary_table, TEMPORARY_TABLE, id );
 
+QUERY_HELPER(customer, CUSTOMER, id, name, email, address)
+QUERY_HELPER(product, PRODUCT, id, title, description, price, category)
+QUERY_HELPER(category, CATEGORY, id, title, description)
+QUERY_HELPER(cart, CART, id, items, owner)
+
 int main() {
     using namespace matador::sql;
     using namespace matador::object;