On Thu, 19 Jan 2017, Sébastien Brisard wrote:

> Hello all,
> here is a MWE
>
> =====BEGIN MWE=====
>
> #+NAME: table20170119
> | col1 | col2       |
> |------+------------|
> | row1 | 1234567890 |
> | row2 | a          |
> | row3 | b          |
> | row4 | c          |
>
> #+BEGIN_SRC emacs-lisp :var table=table20170119 :colnames yes :results output
>  (print (map 'list (lambda (row) (nth 1 row)) table))
> #+END_SRC
>
> #+RESULTS:
> :
> : (1234567890.0 "a" "b" "c")
>
> =====END MWE=====
>
> As you can see, col #1, row #1 is parsed as a float.


Actually, it is not a float:

#+BEGIN_SRC emacs-lisp :var table=table20170119 :colnames yes :results pp
(number-to-string (nth 1 (car table)))
#+END_SRC

#+RESULTS:
: "1234567890"

Maybe this is what you want:

#+BEGIN_SRC emacs-lisp :var table=table20170119 :colnames yes :results pp
(map 'list (lambda (row) (format "%s" (nth 1 row))) table)
#+END_SRC

#+RESULTS:
: ("1234567890" "a" "b" "c")

HTH,

Chuck