Re: [GENERAL] Error

We have problems with aggregates in some views. It is a know problem on
the TODO list.

> I got an error when accessing a view. The view looks like this:
>
> CREATE TABLE ar_contacts(
> contact_seq int,
> update_date date,
> period date,
> paid float,
> sales float,
> last_date date,
> due float,
> PRIMARY KEY (contact_seq, period)
> );
> CREATE VIEW ar_sales90_v AS
> SELECT contact_seq, SUM(sales) AS sales90 FROM ar_contacts WHERE
> period >= date(date_trunc('month','now'::date) - '2 month'::timespan)
> GROUP BY contact_seq;
>
> If I
> SELECT * FROM ar_sales90_v WHERE contact_seq = 1;
> then everything is fine. I get what I expect:
>
> contact_seq|sales90
> -----------+-------
> 1| 6
> (1 row)
>
> If I do this:
> SELECT sales90 FROM ar_sales90_v WHERE contact_seq = 1;
> I get this result:
>
> 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.
>
> The backend didn't die; I can restart psql and do my queries.
>
>
>

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