Re: How copy a new line char to a file? - Mailing list pgsql-general

Hi all,

I should have explained it better:

Why don't I just insert each line in the table and let "copy to" do its
thing inserting a new line char (lf) at the end of each line?
Because I need the file lines to be in a certain order. Copy to will
copy the lines in its own order.
Until now I'm inserting html pages in a single line table without a lf
and copying then to files. Here is the result:
http://planeta.terra.com.br/informatica/kakaostats/
http://planeta.terra.com.br/informatica/kakaostats/t13802.html
Right click the page and click view source and there it is, a single
giant line.
The problem with mixing html and pl/pgsql is that it becomes a big
mess. It is very hard to evolve the code and understand it.
So I choose to not output html anymore but cvs text and build the page
with php. Advantages: much simpler pl/pgsql code and upload size 80%
smaller.
Lines finishing with a lf are much easier to parse in php (fgetcsv).
This and the need to have then ordered is why i need to insert lfs in
the single line table from which to copy to file.
I have solved it with a simple python script but it is one more step
and is not fail safe. Where there would be a lf I insert the string
"newLine". Then in the python script I change it to an actual lf char.
But in the remote possibility that there is or there will be this
string in the database (600+ thousand distinct user names) then the
output file will be wrong.
Also it is one more piece of software to be mantained.

Regards,
Clodoaldo Pinto

 --- Clodoaldo Pinto Neto <clodoaldo_pinto@yahoo.com.br> escreveu:
> Hi all,
>
> I'm trying to copy a table with a text field column containing a new
> line char to a file:
>
> ksDesenv=# create table page(line text) without oids;
> CREATE TABLE
> ksDesenv=# insert into page (line)
> values('1stline'||chr(10)||'2ndline');
> INSERT 0 1
> ksDesenv=# select * from page;
>       line
> -----------------
>  1stline
> 2ndline
> (1 registro)
>
> ksDesenv=# copy page to '/var/www/html/kakaostats/page.txt';
> COPY
>
> But this is what the page.txt file looks like:
>
> 1stline\n2ndline
>
> What can I do to make the copy to command insert an actual new line
> char?
>
> Regards,
> Clodoaldo Pinto Neto
>
>
>
>
>
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