presto-parser/src/main/java/io/prestosql/sql/parser/AstBuilder.java/AstBuilder/visitArithmeticBinary
class AstBuilder:    @Override
    public Node visitArithmeticBinary(SqlBaseParser.ArithmeticBinaryContext context)
    {
        return new ArithmeticBinaryExpression(
                getLocation(context.operator),
                getArithmeticBinaryOperator(context.operator),
                (Expression) visit(context.left),
                (Expression) visit(context.right));
    }