presto-parser/src/main/java/io/prestosql/sql/SqlFormatter.java/Formatter/visitInsert
class Formatter:        @Override
        protected Void visitInsert(Insert node, Integer indent)
        {
            builder.append("INSERT INTO ")
                    .append(node.getTarget());

            if (node.getColumns().isPresent()) {
                builder.append(" (")
                        .append(Joiner.on(", ").join(node.getColumns().get()))
                        .append(")");
            }

            builder.append("\n");

            process(node.getQuery(), indent);

            return null;
        }