presto-parser/src/main/java/io/prestosql/sql/SqlFormatter.java/SqlFormatter/visitValues
class SqlFormatter:        @Override
        protected Void visitValues(Values node, Integer indent)
        {
            builder.append(" VALUES ");

            boolean first = true;
            for (Expression row : node.getRows()) {
                builder.append("\n")
                        .append(indentString(indent))
                        .append(first ? "  " : ", ");

                builder.append(formatExpression(row));
                first = false;
            }
            builder.append('\n');

            return null;
        }