presto-parser/src/main/java/io/prestosql/sql/SqlFormatter.java/SqlFormatter/visitDelete
class SqlFormatter:        @Override
        protected Void visitDelete(Delete node, Integer context)
        {
            builder.append("DELETE FROM ")
                    .append(formatName(node.getTable().getName()));

            if (node.getWhere().isPresent()) {
                builder.append(" WHERE ")
                        .append(formatExpression(node.getWhere().get()));
            }

            return null;
        }