Re: function ave(integer) does not exist

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От hubert depesz lubaczewski
Тема Re: function ave(integer) does not exist
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Msg-id 20120703181304.GB18987@depesz.com
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Ответ на function ave(integer) does not exist  (Benedict Holland <benedict.m.holland@gmail.com>)
Ответы Re: function ave(integer) does not exist  (Benedict Holland <benedict.m.holland@gmail.com>)
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On Tue, Jul 03, 2012 at 02:07:54PM -0400, Benedict Holland wrote:
> This one is confusing. The only difference in my db is that it comes from a
> user specific template not pg_default.

"difference"? between what and what?

> select ave(var)
> from test;
>
***********************************************************************************************************************************************************
>
>
> and I get this as the error:
>
>
***********************************************************************************************************************************************************
> ERROR:  function ave(integer) does not exist
> LINE 1: select ave(var)
>                ^

Never heard of ave() function. What should it do?

> So why is this happening? I can run a "select sum(var)" and it works.

Well, sum() works, because such function (aggregate actually) exists.

Hmm .. perhaps you're looking for avg() - to get average value?

Best regards,

depesz

--
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