Re: Same query, same performance
| От | alexandre :: aldeia digital |
|---|---|
| Тема | Re: Same query, same performance |
| Дата | |
| Msg-id | 10840.200.225.202.15.1043351377.squirrel@webmail.ad2.com.br обсуждение |
| Ответ на | Re: Same query, same performance (Tomasz Myrta <jasiek@klaster.net>) |
| Список | pgsql-performance |
Tomasz, >>1) ! 1.185424 elapsed 1.090000 user 0.100000 system sec >>2) ! 1.184415 elapsed 1.070000 user 0.120000 system sec >>3) ! 1.185209 elapsed 1.100000 user 0.080000 system sec >> >>If the disks is not read directly, the system must find >>the rows in RAM. If it find in RAM, why so diffrents machines >>have the times of execution and why the times does not down ??? > > Here is your problem: > -> Seq Scan on fn06t t1 (cost=0.00..25808.30 rows=15 width=95) > Filter: ((fn06emp07 = 1::smallint) AND (fn06tiptit = > 'R'::bpchar) AND (fn06titban = '002021001525 > '::bpchar)) Really! I do not attemp that fn06t does not have an index with fn06titban ... :) Now, tehe time of the querys are < 0.02 sec on P4 and <0.05 on Xeon. Very Thank´s Alexandre,
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