Nicolas Goaziou writes:

> Hello,
>
> Saulius Menkevičius <saulius.menkevicius@gmail.com> writes:
>
>> This (tiny) patch implements ability to set dbport for org-babel sql
>> functionality. I often use ssh port forwarding to connect to remote
>> mysql servers where port is mapped to non-standard one on local
>> machine.
>
> Thank you.
>
>> This is my first patch, below the 15 line threshold.
>>
>> From ca3f85877bdf406deefaf66cbac3483a7e41f134 Mon Sep 17 00:00:00 2001
>> From: =?UTF-8?q?Saulius=20Menkevi=C4=8Dius?= <saulius.menkevicius@gmail.com>
>> Date: Mon, 6 Apr 2015 23:13:06 +0300
>> Subject: [PATCH] ob-sql: Add possibility to set dbport
>>
>>  * lisp/ob-sql.el: will now recognize dbport parameter. Currently it
>>    is supported for mysql engine only.
>
> You need to also specify what functions are modified, e.g.,
>
> * lisp/ob-sql.el (org-babel-sql-dbstring-mysql): Change signature.

Done.

>
>> +(defun org-babel-sql-dbstring-mysql (host port user password database)
>>    "Make MySQL cmd line args for database connection.  Pass nil to omit that arg."
>>    (combine-and-quote-strings
>>     (delq nil
>>  	 (list (when host     (concat "-h" host))
>> +	       (when port     (concat "-P" (number-to-string port)))
>
> Isn't PORT a string already?

Apparently it is not a string. I don't know the internal machinery for
#+header parameters in org-mode/babel, but apparently number-to-string
is required, otherwise I get the "progn: Wrong type argument: sequencep,
33060" error. Where 33060 is my port number from the :dbport param.

>
>>           (dbhost (cdr (assoc :dbhost params)))
>> +         (dbport (cdr (assoc :dbport params)))
>
> Nitpick: `assoc' -> `assq'

Ok. I did not know much of elisp to decide on which one to. This was
copy-paste code from previous line, sorry.

Updated patch is attached to this mail.