Re: Who knows this SELECT in PostgreSQL

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От Michael Monnerie
Тема Re: Who knows this SELECT in PostgreSQL
Дата
Msg-id 200906080946.55101@zmi.at
обсуждение исходный текст
Ответ на Re: Who knows this SELECT in PostgreSQL  ("Milen A. Radev" <milen@radev.net>)
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On Samstag 06 Juni 2009 Milen A. Radev wrote:
> CREATE AGGREGATE public.array_agg(ANYELEMENT) (
>     SFUNC = ARRAY_APPEND,
>     STYPE = ANYARRAY,
>     INITCOND = '{}'
> );
> SELECT
>     ARRAY_TO_STRING(public.ARRAY_AGG(b.messageblk),'') AS the_message

Wow, very cryptic. Would never have found that, thanks a lot!

> If you can wait for or want to test version 8.4 (which is in Beta
> right now and would be released relatively soon) you can skip the
> creation of the aggregate.

Need it now, but good to know 8.4 helps here :-)

mfg zmi
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