Hello
2010/8/30 Andreas Kretschmer <akretschmer@spamfence.net>:
> Gerhard Wiesinger <lists@wiesinger.com> wrote:
>
>> I know that the data model is key/value pairs but it worked well in 8.3.
>> I need this flexibility.
>>
>> Any ideas?
>
> If i understand the query correctly it's a pivot-table, right?
>
no - it's just EAV table on very large data :(
Regards
Pavel Stehule
> If yes, and if i where you, i would try to rewrite this query, to
> something like:
>
> select
> timestamp,
> sum (case when keyid = 1 then value else 0 end) as Raumsolltemperatur,
> ...
> from
> log
> group by
> timestamp;
>
>
> Assuming you can read a german text:
> http://www.pg-forum.de/h-ufig-gestellte-fragen-faq/4067-faq-zeilen-zu-spalten.html
>
>
>
> Andreas
> --
> Really, I'm not out to destroy Microsoft. That will just be a completely
> unintentional side effect. (Linus Torvalds)
> "If I was god, I would recompile penguin with --enable-fly." (unknown)
> Kaufbach, Saxony, Germany, Europe. N 51.05082°, E 13.56889°
>
> --
> Sent via pgsql-performance mailing list (pgsql-performance@postgresql.org)
> To make changes to your subscription:
> http://www.postgresql.org/mailpref/pgsql-performance
>