Re: How to count the number of items in an Array? - Mailing list pgsql-general

From Andre Lopes
Subject Re: How to count the number of items in an Array?
Date
Msg-id 18f98e681002210717o18fadb53ybef8259caabd86b8@mail.gmail.com
Whole thread Raw
In response to Re: How to count the number of items in an Array?  (Andreas Kretschmer <akretschmer@spamfence.net>)
Responses Re: How to count the number of items in an Array?
List pgsql-general
One more time, thanks for the reply. I'am using postgre 8.3. I think I don't have the array_agg(), there is another way of doing it?
 
Best Regards,


 
On Sun, Feb 21, 2010 at 2:46 PM, Andreas Kretschmer <akretschmer@spamfence.net> wrote:
Andre Lopes <lopes80andre@gmail.com> wrote:

> Hi,
>
> Thanks for the reply.
>
> My problem is that I can't have the array with all items. I need to read from a
> table and store in an Array the values.

Not sure if i understand you, but how about:

test=*# select * from foo;
 a
---
 1
 3
 5
 7
(4 Zeilen)

Zeit: 0,203 ms
test=*# select array_agg(a) from foo;
 array_agg
-----------
 {1,3,5,7}
(1 Zeile)


The function returns a column as an array.



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-general mailing list (pgsql-general@postgresql.org)
To make changes to your subscription:
http://www.postgresql.org/mailpref/pgsql-general

pgsql-general by date:

Previous
From: Andreas Kretschmer
Date:
Subject: Re: How to count the number of items in an Array?
Next
From: Andreas Kretschmer
Date:
Subject: Re: How to count the number of items in an Array?