From: Ed Loehr <eloehr@austin.rr.com>
To: Alexandr Listopad <laa@laa.zp.ua>
Cc: pgsql-interfaces@postgresql.org
Subject: Re: Where is a mistake?
Date: Fri, 26 May 2000 10:32:54 -0500
Message-ID: <392E9926.6B40AE53@austin.rr.com> (raw)
References: <Pine.BSF.4.10.10005261724210.27113-100000@Eagle.ZGIA.zp.ua>
Alexandr Listopad wrote:
>
> CREATE VIEW v1 AS SELECT n.net AS net,
> n.sh_desc AS net_name,
> count(s.ip) AS total_q
> sum(s.bytes)/1024 AS Kb
> FROM zgia_nets n,
> squid_logs s
> WHERE network_sub(s.ip,n.net)
> AND
> date_eq(dt::date,'24-05-2000')
> AND
> s.peer_stat != 'NONE'
> GROUP BY net,net_name
> ORDER BY Kb;
>
> stats=> select t1.net,t1.net_name,t1.total_q,t1.total_q/sum(t2.total_q) from v1 t1,
> v1 t2 group by 1,2,3;
>
> pqReadData() -- backend closed the channel unexpectedly.
> This probably means the backend terminated abnormally
> before or while processing the request.
> We have lost the connection to the backend, so further processing is
> impossible. Terminating.
>
> where is a mistake? or is it a bug?
>
> I have PGSQL v 6.5.3.
Mistake #1: using 6.5.3 instead of 7.0 :)
Mistake #2: aggregates are not supported in views :(
Loaded question: What does your server log show when this happens?
Regards,
Ed Loehr
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Subject: Re: Where is a mistake?
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