Обсуждение: Problems with CREATE AGGREGATE and user defined state type.

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Problems with CREATE AGGREGATE and user defined state type.

От
Magnus Jonsson
Дата:
Hello,

I discoverd what seems to be a bug in postgresql 7.4.12 (also on
7.4.7).

I have an example located at http://foo.fot.nu/psql/ with a simple
example that delevers the correct result on 8.1 (tested by some nice
person at #postgresql).

It seems like the state variable is reseted every time a new
grouped value pops up.

/M

-- 
Magnus Jonsson <bigfoot@acc.umu.se>
I'm here looking for an answer, but I'm not sure about the question...


Re: Problems with CREATE AGGREGATE and user defined state type.

От
"Aftab Alam"
Дата:
delete my email from the list

Regards,
 


-----Original Message-----
From: pgsql-hackers-owner@postgresql.org
[mailto:pgsql-hackers-owner@postgresql.org]On Behalf Of Magnus Jonsson
Sent: Tuesday, March 21, 2006 8:39 PM
To: pgsql-hackers@postgresql.org
Subject: [HACKERS] Problems with CREATE AGGREGATE and user defined state
type.



Hello,

I discoverd what seems to be a bug in postgresql 7.4.12 (also on
7.4.7).

I have an example located at http://foo.fot.nu/psql/ with a simple
example that delevers the correct result on 8.1 (tested by some nice
person at #postgresql).

It seems like the state variable is reseted every time a new
grouped value pops up.

/M

-- 
Magnus Jonsson <bigfoot@acc.umu.se>
I'm here looking for an answer, but I'm not sure about the question...

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Re: Problems with CREATE AGGREGATE and user defined state type.

От
Tom Lane
Дата:
Magnus Jonsson <bigfoot@acc.umu.se> writes:
> I discoverd what seems to be a bug in postgresql 7.4.12 (also on
> 7.4.7).

AFAIR, 7.4 and earlier didn't really have a sane way of representing
NULL composite-type values, so this aggregate isn't going to work
before 8.0. 
        regards, tom lane