Re: Delete query takes exorbitant amount of time - Mailing list pgsql-performance

On Sat, 2005-03-26 at 07:55 -0800, Stephan Szabo wrote:
> That seems like it should be okay, hmm, what does something like:
>
> PREPARE test(int) AS SELECT 1 from measurement where
> id_int_sensor_meas_type = $1 FOR UPDATE;
> EXPLAIN ANALYZE EXECUTE TEST(1);
>
> give you as the plan?

                                                      QUERY PLAN
-----------------------------------------------------------------------------------------------------------------------
 Seq Scan on measurement  (cost=0.00..164559.16 rows=509478 width=6)
                          (actual time=11608.402..11608.402 rows=0 loops=1)
                          Filter: (id_int_sensor_meas_type = $1)
 Total runtime: 11608.441 ms
(3 rows)


--
Karim Nassar
Department of Computer Science
Box 15600, College of Engineering and Natural Sciences
Northern Arizona University,  Flagstaff, Arizona 86011
Office: (928) 523-5868 -=- Mobile: (928) 699-9221