docs: public static Optional<Condition> createCompareCondition(final PredicateCompareRightValue compareRightValue, final Column column) {
          return compareRightValue.getExpression() instanceof SimpleExpressionSegment
                  ? Optional.of(new Condition(column, ((SimpleExpressionSegment) compareRightValue.getExpression()).getSQLExpression())) : Optional.<Condition>absent();
      }