From: Mike Rylander <miker@purplefrog.com>
Subject: Re: Trigger problem
Date: Tue, 08 Jun 2004 14:57:44 -0400
Organization: Hub.Org Networking Services
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References: <BJnxc.1978$_s7.121@news.get2net.dk>
Reply-To: miker@purplefrog.com
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To: pgsql-sql@postgresql.org

kasper wrote:

> Hi guys
> 
> Im tryint to make a trigger that marks a tuble as changed whenever someone
> has updated it
> 
> my table looks something like this
> 
> create table myTable (
>     ...
>     changed boolean;
> )
> 
> now ive been working on a trigger and a sp that looks like this, but it
> doesnt work...
> 
> create function myFunction returns trigger as '
>     begin
>         new.changed = true;

The line above is using the SQL equaliy opperator, you want the assignment
operator:

  :=

as in 

        new.changed := true;

>         return new;
>     end;
> ' language 'plpgsql';
> 
> create trigger myTrigger
> after update on lektioner
> for each row
> execute procedure myFunction();
> 
> 
> the code compiles, runs, and doesnt whine about anything, but nothing
> changes...
> 
> any ideas??
> 
> - Kasper

-miker