In response to Richard Sickler :
> > I am not sure if there is a very simple way of doing this?
> >
> > Or, do I need to create a function and a trigger to call the row and
> update
> > with new data and set the last_modified to current_date?
>
> Yes, that's the way, a TRIGGER on UPDATE for each row. I think, the doc
> contains an example.
>
>
> Andreas
>
>
> From a novice: I use last_updated_at timestamp without time zone NOT NULL
> DEFAULT now()
This works only for INSERT, but not for UPDATE.
test=# create table richard (id int, last_updated_at timestamp without time zone NOT NULL DEFAULT NOW());
CREATE TABLE
test=# insert into richard (id) values (1);
INSERT 0 1
test=# select * from richard ;
id | last_updated_at
----+----------------------------
1 | 2010-03-23 06:54:28.656668
(1 row)
test=# select now();
now
-------------------------------
2010-03-23 06:54:42.443224+01
(1 row)
test=# UPDATE richard set id=2 where id=1;
UPDATE 1
test=# select * from richard ;
id | last_updated_at
----+----------------------------
2 | 2010-03-23 06:54:28.656668
(1 row)
As you can see, the last_updated_at isn't up-to-date ;-)
Regards, Andreas
--
Andreas Kretschmer
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