Oliver,
then what can i do -regarding timestamp- if i need to
create such a routine, so called "batch-processing",
which writes data to a table, or more tables at the
same time?
how can i ask the real timestamp value within a stored
procedure?
Ivan
--- Oliver Elphick <olly@lfix.co.uk> wrote:
> On Mon, 2002-03-04 at 07:45, Ivan Horvath wrote:
> > Thanks for answer,
> >
> > here is the code of the stored procedure:
> >
> > DROP FUNCTION a_function();
> >
> > CREATE FUNCTION a_function () RETURNS interval AS
> '
>
> In 7.2 you can now do CREATE OR REPLACE FUNCTION...
> rather than DROP
> followed by CREATE.
>
> > DECLARE
> > process_time interval;
> > BEGIN
> > FOR i IN 1..10000 LOOP
> > INSERT INTO unit (unit_name, mod_date)
> > VALUES (''a'', current_timestamp);
> > END LOOP;
> >
> > select into process_time max(mod_date) -
> > min(mod_date) from unit;
> >
> > RETURN process_time;
> >
> > END;'
> > LANGUAGE 'plpgsql';
>
>
> All operations within a plpgsql procedure happen
> within a transaction
> and within a transaction current_timestamp does not
> change (by design).
> So each separate call to this procedure will produce
> 10000 identical
> inserts.
>
> --
> Oliver Elphick
> Oliver.Elphick@lfix.co.uk
> Isle of Wight
> http://www.lfix.co.uk/oliver
> GPG: 1024D/3E1D0C1C: CA12 09E0 E8D5 8870 5839 932A
> 614D 4C34 3E1D 0C1C
>
> "Give, and it will be given to you. A good
> measure,
> pressed down, taken together and running over,
>
> will be poured into your lap. For with the
> same
> measure that you use, it will be measured to
> you." Luke 6:38
>
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