Is it normal that a query that takes <1 sec when executed from psql
prompt
takes >15 sek when executed from a function (and takes >95% of cpu for
all that time ?
example (on 7.0.2)
>UPDATE item SET id_path = '';
returns immediately (on 2000 item table)
then I create a function
CREATE FUNCTION "regenerate_id_paths" ( ) RETURNS int4 AS '
BEGIN
UPDATE item SET id_path = '''';
RETURN -1;
END;
' LANGUAGE 'plpgsql';
and then
>select regenerate_id_paths( );
takes more than 15 sec and uses as much cpu as it can get while running;
BTW, where can I learn more about pl/pgsql süntax ?
The postgre docs suggest that "For more complex examples the programmer
might look at the regression
test for PL/pgSQL." but there is only one example using a for loop and
none using while.
I suspect that it may be missing more.
-----------
Hannu
