OK I tried:
create function utbl_set_statchangedate() returns opaque as ' begin IF TG_OP = \'INSERT\' OR OLD.status <>
NEW.status THEN NEW.statchangedate = CURRENT_DATE; END IF;return NEW;end;
' language 'plpgsql';
... but that had the same problem. So then I tried:
create function utbl_set_statchangedate() returns opaque as
'begin IF TG_OP = \'UPDATE\' THEN NEW.statchangedate := CURRENT_DATE; ELSE IF OLD.status <>
NEW.status THEN NEW.statchangedate := CURRENT_DATE; END IF;return NEW;end;
' language 'plpgsql';
but now I'm getting:
NOTICE: plpgsql: ERROR during compile of utbl_set_statchangedate near
line 10
ERROR: parse error at or near ";"
Joe Conway wrote:
>
> > begin
> > IF OLD.status <> NEW.status
> > THEN
> > NEW.statchangedate = CURRENT_DATE;
> > END IF;
> > return NEW;
> > end;
> >
> > The problem is when a new row is inserted I get this error message:
> > ERROR: record old is unassigned yet
> > ... and the insert fails.
> >
> > It doesn't matter if the trigger is before or after.
>
> OLD doesn't exist on inserts, only on update and delete. If you want to use
> the same function for both insert and update use the TG_OP variable and an
> if statement. See
> http://www.postgresql.org/idocs/index.php?plpgsql-trigger.html
>
> Hope this helps,
>
> Joe
--
Joseph Shraibman
jks@selectacast.net
Increase signal to noise ratio. http://www.targabot.com
