Select rotate in PostgreSql

On Wed, Mar 13, 2013 at 8:32 AM, Andre Lopes <lopes80andre@gmail.com> wrote:

Hi all,

I don't know how to ask for this. I need to rotate a Select in
PostgreSql, just like this: http://dpaste.com/1021691/

I can achieve this easily without a procedure?

yes: that's not rotation but simple aggregation. look for string_agg
here: http://www.postgresql.org/docs/9.2/static/functions-aggregate.html

merlin

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On Wed, Mar 13, 2013 at 10:32 AM, Andre Lopes <lopes80andre@gmail.com>wrote:

Hi all,

I don't know how to ask for this. I need to rotate a Select in
PostgreSql, just like this: http://dpaste.com/1021691/

I can achieve this easily without a procedure?

Hi Andre,

If I understood you want to aggregate "comments" into a single line... is
it? If yes then you can try this:

SELECT article_id, string_agg(comments, ' ') FROM your_table GROUP BY
article_id;

Best regards,

--
Fabrízio de Royes Mello
Consultoria/Coaching PostgreSQL