Re: Substring Problem

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От hubert depesz lubaczewski
Тема Re: Substring Problem
Дата
Msg-id 20080513133035.GA32453@depesz.com
обсуждение исходный текст
Ответ на Substring Problem  (Stefan Schwarzer <stefan.schwarzer@grid.unep.ch>)
Список pgsql-general
On Tue, May 13, 2008 at 03:26:57PM +0200, Stefan Schwarzer wrote:
> it seems to work with 8.1, but not anymore with 8.3. What is wrong
> with this substring request? Or is it some installation issue? Thanks
> for any suggestion!
> SELECT substring(date from 1 for 7) AS stryearmonth, COUNT(id) AS
> countofnumber FROM (SELECT * from downloads ) AS foo GROUP BY
> stryearmonth ORDER BY stryearmonth ASC

in release notes it says that 8.3 removes some implicit casts. for
example the ones from date to text.

change your substring to:
to_char(date, 'YYYY-MM')
and You should be fine.

depesz

--
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highly paid DBA.  here's my CV!" :)
http://www.depesz.com/ - blog dla ciebie (i moje CV)

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