docs: OrderedHashSet getContainingConstraints(int colIndex) {
  
          OrderedHashSet set = new OrderedHashSet();
  
          for (int i = 0, size = constraintList.length; i < size; i++) {
              Constraint c = constraintList[i];
  
              if (c.hasColumnPlus(colIndex)) {
                  set.add(c);
              }
          }
  
          return set;
      }