docs: Constraint getUniqueConstraintForExprs(Expression[] indexExprs) {
          for (int i = 0, size = constraintList.length; i < size; i++) {
              Constraint exprc = constraintList[i];
  
              if (exprc.isUniqueWithExprs(indexExprs)) {
                  return exprc;
              }
          }
          return null;
      }