Re: SQL Rule

From: "Bert" <clemens(dot)bertschler(at)gmail(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: Re: SQL Rule
Date: 2006-04-26 21:35:28
Message-ID: 1146087328.537923.50290@u72g2000cwu.googlegroups.com
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Hi Kenneth
Thats exactly what i want, because we are running more selects than
inserts, and therefore a view is not the best way to go.
But I still have a problem, I was doing like you told me.
I have still the same table (without the rules definition)
So I created a trigger function:

CREATE FUNCTION trigger_test()
RETURNS TRIGGER
AS 'BEGIN
new.c = (new.a + new.b);
RETURN new;
END;'
LANGUAGE 'plpgsql';

and then the Trigger:

CREATE TRIGGER trigger_sum
AFTER INSERT OR UPDATE
ON test
FOR EACH ROW
EXECUTE PROCEDURE trigger_test();

The inserting and updating is doing well, but its not summing up the a
and b and save it to the c column. So far maybe you can help me second
time.
Thanks,
Bert

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