presto-parser/src/main/java/io/prestosql/sql/ExpressionFormatter.java/Formatter/visitRow
class Formatter:        @Override
        protected String visitRow(Row node, Void context)
        {
            return "ROW (" + Joiner.on(", ").join(node.getItems().stream()
                    .map((child) -> process(child, context))
                    .collect(toList())) + ")";
        }